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Prof. Dr. Stephan Kümmel

Prof. Dr. Stephan Kümmel Prof. Dr. Stephan Kümmel
Prof. Dr. Stephan Kümmel

Faculty of Mathematics, Physics und Computer Sciences
Chair of Theoretical Physics IV


Job History

05/2009 – presentFull Professor (Chair of Theoretical Physics IV)
08/2005 – 04/2009

Associate Professor (W2), Theoretical Physics, University of Bayreuth, declined an external offer for a Chair in Theoretical Physics

07/2003 – 07/2005Emmy Noether-Junior Group leader at the Max-Planck-Institute fort he Physics of Complex Systems in Dresden
01/2003 – 06/2003Research Associate, Department of Physics, Tulane University, New Orleans, USA

Education

01/2001 – 12/2002Emmy Noether-Scholarship oft he German Science Foundation, Post-Doctoral Researcher with Prof. J. P. Perdew, Tulane University, New Orleans, USA
1997 – 2000PhD in physics with Prof. M. Brack, summa cum laude
11/1999 – 12/1999Research stay at the University of Jyväskylä, Finland, with Prof. M. Manninen, supported by the Academy of Finland
1997Diploma in physics, University of Regensburg, with distinction
1991 – 1997Studying physics at the University of Regensburg and the University of Illinois at Urbana-Champaign, USA

Awards and other responsibilities

since 2019Dean of the Faculty of Mathematics, Physics and Computer Sciences
since 2018Direktor of the Bayreuther Zentrum für High Performance Computing
since 2016Speaker of the Elite Study Program “Biological Physics” in the Elite Network of Bavaria
2015 – 2017Director of the Bayreuth Graduate School of Mathematical and Natural Sciences
2015 – 2017Vice-Dean of the University of Bayreuth
2013 – 2020Boardmember of the Bavarian Section of the Deutsche Physikalische Gesellschaft
2009 – 2015Vice director of the Bayreuth Graduate School of Mathematical and Natural Sciences
1991 – 1997Member of the Bayerische Hochbegabtenförderung
Prof. Dr. Stephan Kümmel

Faculty of Mathematics, Physics und Computer Sciences
Chair of Theoretical Physics IV


We try to unravel the electronic structure and dynamics of condensed matter systems. Developing and using (time-dependent) density functional theory plays a major role in our group’s research.

We presently work in the following areas:

  • Organic molecules:
    Studying energy- and charge transfer processes in organic semiconductors and natural light-harvesting systems
  • Metal nanoparticles:
    Structure and electronic properties of nanoalloys, especially from noble metals, catalytic properties
  • Photoemission:
    Calculating photoemission intensities from first principles, angle resolved, also non-perturbatively and strong field effects
  • Density functional development:
    Orbitalfunctionals, Self-interaction corrections, „Tuned-range-separated“ hybrids, taking into account the particle number discontinuity
Prof. Dr. Stephan Kümmel

Faculty of Mathematics, Physics und Computer Sciences
Chair of Theoretical Physics IV


Selected publications

2023

Volpert, Sabrina; Hashemi, Zohreh; Förster, Johannes; Marques, Mario R. G.; Schelter, Ingo; Kümmel, Stephan; Leppert, Linn
Delocalized electronic excitations and their role in directional charge transfer in the reactio ...
in The Journal of Chemical Physics volume 158 (2023) issue 19
doi:10.1063/5.0139691 ...

Aschebrock, Thilo; Lebeda, Timo; Brütting, Moritz; Richter, Rian; Schelter, Ingo; Kümmel, Stephan
Exact exchange-like electric response from a meta-generalized gradient approximation : A semilo ...
in The Journal of Chemical Physics volume 159 (2023) issue 23
doi:10.1063/5.0173776 ...

Richter, Rian; Aschebrock, Thilo; Schelter, Ingo; Kümmel, Stephan
Meta-generalized gradient approximations in time dependent generalized Kohn–Sham theory : Impor ...
in The Journal of Chemical Physics volume 159 (2023) issue 12
doi:10.1063/5.0167972 ...

Lebeda, Timo; Aschebrock, Thilo; Sun, Jianwei; Leppert, Linn; Kümmel, Stephan
Right band gaps for the right reason at low computational cost with a meta-GGA
in Physical Review Materials volume 7 (2023) issue 9
doi:10.1103/PhysRevMaterials.7.093803 ...

Brütting, Moritz; Förster, Johannes; Kümmel, Stephan
Understanding Primary Charge Separation in the Heliobacterial Reaction Center
in The Journal of Physical Chemistry Letters volume 14 (2023) issue 13. - page 3092-3102
doi:10.1021/acs.jpclett.3c00377 ...

2022

Trepl, Thomas; Schelter, Ingo; Kümmel, Stephan
Analyzing Excitation-Energy Transfer Based on the Time-Dependent Density Functional Theory in R ...
in Journal of Chemical Theory and Computation volume 18 (2022) issue 11. - page 6577-6587
doi:10.1021/acs.jctc.2c00600 ...

Lebeda, Timo; Aschebrock, Thilo; Kümmel, Stephan
First steps towards achieving both ultranonlocality and a reliable description of electronic bi ...
in Physical Review Research volume 4 (2022) issue 2
doi:10.1103/PhysRevResearch.4.023061 ...

Brütting, Moritz; Bahmann, Hilke; Kümmel, Stephan
Hybrid functionals with local range separation : Accurate atomization energies and reaction bar ...
in The Journal of Chemical Physics volume 156 (2022) issue 10
doi:10.1063/5.0082957 ...

2021

Hammon, Sebastian; Klarner, Mara; Hörner, Gerald; Weber, Birgit; Friedrich, Martin; Senker, Jürgen; Kempe, Rhett; Branquinho de Queiroz, Thiago; Kümmel, Stephan
Combining Metal Nanoparticles with an Ir(III) Photosensitizer
in The Journal of Physical Chemistry C volume 125 (2021) issue 46. - page 25765-25773
doi:10.1021/acs.jpcc.1c05756 ...

Brütting, Moritz; Förster, Johannes; Kümmel, Stephan
Investigating Primary Charge Separation in the Reaction Center of Heliobacterium modesticaldum
in The Journal of Physical Chemistry B volume 125 (2021) issue 14. - page 3468-3475
doi:10.1021/acs.jpcb.0c10283 ...

Hammon, Sebastian; Leppert, Linn; Kümmel, Stephan
Magnetic moment quenching in small Pd clusters in solution
in The European Physical Journal D volume 75 (2021) issue 12
doi:10.1140/epjd/s10053-021-00322-1 ...

Hammon, Sebastian; Kümmel, Stephan
Pump-probe photoemission simulated in real time : Revealing many-particle signatures
in Physical Review A volume 104 (2021) issue 1
doi:10.1103/PhysRevA.104.012815 ...

2020

Hofmann, Fabian; Kümmel, Stephan
Molecular excitations from meta-generalized gradient approximations in the Kohn–Sham scheme
in The Journal of Chemical Physics volume 153 (2020) issue 11
doi:10.1063/5.0023657 ...

Kronik, Leeor; Kümmel, Stephan
Piecewise linearity, freedom from self-interaction, and a Coulomb asymptotic potential : three ...
in Physical Chemistry Chemical Physics volume 22 (2020) issue 29. - page 16467-16481
doi:10.1039/D0CP02564J ...

Kehrer, Juliana; Richter, Rian; Förster, Johannes; Schelter, Ingo; Kümmel, Stephan
Self-interaction correction, electrostatic, and structural influences on time-dependent density ...
in The Journal of Chemical Physics volume 153 (2020) issue 14
doi:10.1063/5.0014938 ...

Klarner, Mara; Hammon, Sebastian; Feulner, Sebastian; Kümmel, Stephan; Kador, Lothar; Kempe, Rhett
Visible Light-driven Dehydrogenation of Benzylamine under Liberation of H2
in ChemCatChem volume 12 (2020) issue 18. - page 4593-4599
doi:10.15495/EPub_UBT_00005019 ...

2019

Schelter, Ingo; Förster, Johannes; Gardiner, Alastair T.; Roszak, Aleksander W.; Cogdell, Richard J.; Ullmann, G. Matthias; de Queiroz, Thiago Branquinho; Kümmel, Stephan
Assessing density functional theory in real-time and real-space as a tool for studying bacterio ...
in The Journal of Chemical Physics volume 151 (2019) issue 13
doi:10.1063/1.5116779 ...

Hofmann, Fabian; Schelter, Ingo; Kümmel, Stephan
Efficiently evaluating the Krieger-Li-Iafrate and common-energy-denominator approximations in t ...
in Physical Review A volume 99 (2019) issue 2
doi:10.1103/PhysRevA.99.022507 ...

Aschebrock, Thilo; Kümmel, Stephan
Exploring local range separation : The role of spin scaling and one-electron self-interaction
in The Journal of Chemical Physics volume 151 (2019) issue 15
doi:10.1063/1.5121731 ...

Tilgner, Dominic; Klarner, Mara; Hammon, Sebastian; Friedrich, Martin; Verch, Andreas; de Jonge, Niels; Kümmel, Stephan; Kempe, Rhett
H₂-Generation from Alcohols by the MOF-Based Noble Metal-Free Photocatalyst Ni/CdS/TiO₂@MIL-101 ...
in Australian Journal of Chemistry volume 72 (2019) issue 10. - page 842-847
doi:10.1071/CH19255 ...

Aschebrock, Thilo; Kümmel, Stephan
Ultranonlocality and accurate band gaps from a meta-generalized gradient approximation
in Physical Review Research volume 1 (2019) issue 3
doi:10.1103/PhysRevResearch.1.033082 ...

2018

Schelter, Ingo; Kümmel, Stephan
Accurate Evaluation of Real-Time Density Functional Theory Providing Access to Challenging Elec ...
in Journal of Chemical Theory and Computation volume 14 (2018) issue 4. - page 1910-1927
doi:10.1021/acs.jctc.7b01013 ...

Kronik, Leeor; Kümmel, Stephan
Dielectric Screening Meets Optimally Tuned Density Functionals
in Advanced Materials volume 30 (2018) issue 41
doi:10.1002/adma.201706560 ...

Hofmann, Fabian; Schelter, Ingo; Kümmel, Stephan
Linear response time-dependent density functional theory without unoccupied states : The Kohn-S ...
in The Journal of Chemical Physics volume 149 (2018) issue 2
doi:10.1063/1.5030652 ...

Garhammer, Julian; Hofmann, Fabian; Armiento, Rickard; Kümmel, Stephan
On the challenge to improve the density response with unusual gradient approximations
in The European Physical Journal B volume 91 (2018) issue 7
doi:10.1140/epjb/e2018-90119-4 ...

Kaiser, Alexander; Kümmel, Stephan
Revealing the field-counteracting term in the exact Kohn-Sham correlation potential
in Physical Review A volume 98 (2018) issue 5
doi:10.1103/PhysRevA.98.052505 ...

2017

Aschebrock, Thilo; Armiento, Rickard; Kümmel, Stephan
Challenges for semilocal density functionals with asymptotically nonvanishing potentials
in Physical Review B volume 96 (2017) issue 7
doi:10.1103/PhysRevB.96.075140 ...

Kümmel, Stephan
Charge-Transfer Excitations : A Challenge for Time-Dependent Density Functional Theory That Has ...
in Advanced Energy Materials volume 7 (2017) issue 16
doi:10.1002/aenm.201700440 ...

Aschebrock, Thilo; Armiento, Rickard; Kümmel, Stephan
Orbital nodal surfaces : Topological challenges for density functionals
in Physical Review B volume 95 (2017) issue 24
doi:10.1103/PhysRevB.95.245118 ...

2016

Graus, Martin; Grimm, Manuel; Metzger, Christian; Dauth, Matthias; Tusche, Christian; Kirschner, J.; Kümmel, Stephan; Schöll, Achim; Reinert, Friedrich
Electron-Vibration Coupling in Molecular Materials : Assignment of Vibronic Modes from Photoele ...
in Physical Review Letters volume 116 (2016) issue 14
doi:10.1103/PhysRevLett.116.147601 ...

Raithel, Dominic; Baderschneider, Sebastian; de Queiroz, Thiago B.; Lohwasser, Ruth H.; Köhler, Jürgen; Thelakkat, Mukundan; Kümmel, Stephan; Hildner, Richard
Emitting Species of Poly(3-hexylthiophene): From Single, Isolated Chains to Bulk
in Macromolecules volume 49 (2016) issue 24. - page 9553-9560
doi:10.1021/acs.macromol.6b02077 ...

Schmidt, Tobias; Kümmel, Stephan
The Influence of One-Electron Self-Interaction on d-Electrons
in Computation volume 4 (2016) issue 3
doi:10.3390/computation4030033 ...

Schmidt, Tobias; Albuquerque, Rodrigo Q.; Kempe, Rhett; Kümmel, Stephan
Investigating the electronic structure of a supported metal nanoparticle : Pd in SiCN
in Physical Chemistry Chemical Physics volume 18 (2016) issue 46. - page 31966-31972
doi:10.1039/C6CP06520A ...

Schmidt, Tobias; Kümmel, Stephan
One- and many-electron self-interaction error in local and global hybrid functionals
in Physical Review B volume 93 (2016) issue 16
doi:10.1103/PhysRevB.93.165120 ...

Dauth, Matthias; Graus, Martin; Schelter, Ingo; Wießner, Michael; Schöll, Achim; Reinert, Friedrich; Kümmel, Stephan
Perpendicular Emission, Dichroism, and Energy Dependence in Angle-Resolved Photoemission : The ...
in Physical Review Letters volume 117 (2016) issue 18
doi:10.1103/PhysRevLett.117.183001 ...

Dauth, Matthias; Caruso, Fabio; Kümmel, Stephan; Rinke, Patrick
Piecewise linearity in the GW approximation for accurate quasiparticle energy predictions
in Physical Review B volume 93 (2016) issue 12
doi:10.1103/PhysRevB.93.121115 ...

Dauth, Matthias; Kümmel, Stephan
Predicting photoemission intensities and angular distributions with real-time density-functiona ...
in Physical Review A volume 93 (2016) issue 2
doi:10.1103/PhysRevA.93.022502 ...

Schaffhauser, Philipp; Kümmel, Stephan
Simulating atomic force microscope images with density functional theory : The role of nonclass ...
in Physical Review B volume 94 (2016) issue 3
doi:10.1103/PhysRevB.94.035426 ...

Schaffhauser, Philipp; Kümmel, Stephan
Using time-dependent density functional theory in real time for calculating electronic transpor ...
in Physical Review B volume 93 (2016) issue 3
doi:10.1103/PhysRevB.93.035115 ...

2015

Kraisler, Eli; Schmidt, Tobias; Kümmel, Stephan; Kronik, Leeor
Effect of ensemble generalization on the highest-occupied Kohn-Sham eigenvalue
in The Journal of Chemical Physics volume 143 (2015) issue 10
doi:10.1063/1.4930119 ...

Niedzialek, Dorota; Duchemin, Ivan; Branquinho de Queiroz, Thiago; Osella, Silvio; Rao, Akshay; Friend, Richard; Blase, Xavier; Kümmel, Stephan; Beljonne, David
First Principles Calculations of Charge Transfer Excitations in Polymer-Fullerene Complexes : I ...
in Advanced Functional Materials volume 25 (2015) issue 13. - page 1972-1984
doi:10.1002/adfm.201402682 ...

Leppert, Linn; Kempe, Rhett; Kümmel, Stephan
Hydrogen binding energies and electronic structure of Ni–Pd particles : a clue to their special ...
in Physical Chemistry Chemical Physics volume 17 (2015) issue 39. - page 26140-26148
doi:10.1039/C5CP04174K ...

Vlček, Vojtěch; Steinle-Neumann, Gerd; Leppert, Linn; Armiento, Rickard; Kümmel, Stephan
Improved ground-state electronic structure and optical dielectric constants with a semilocal ex ...
in Physical Review B volume 91 (2015) issue 3
doi:10.1103/PhysRevB.91.035107 ...

Kümmel, Stephan
Self-Interaction Correction as a Kohn–Sham Scheme in Ground-State and Time-Dependent Density Fu ...
Advances In Atomic, Molecular, and Optical Physics. Volume 64
London : Academic Press, 2015. - page 143-151
doi:10.1016/bs.aamop.2015.06.006 ...

Branquinho de Queiroz, Thiago; Kümmel, Stephan
Tuned range separated hybrid functionals for solvated low bandgap oligomers
in The Journal of Chemical Physics volume 143 (2015) issue 3
doi:10.1063/1.4926468 ...

Cherepanov, Pavel; Melnyk, Inga; Skorb, Ekaterina V.; Fratzl, P.; Zolotoyabko, E.; Dubrovinskaia, Natalia; Dubrovinsky, Leonid; Avadhut, Yamini S.; Senker, Jürgen; Leppert, Linn; Kümmel, Stephan; Andreeva, Daria V.
The use of ultrasonic cavitation for near-surface structuring of robust and low-cost AlNi catal ...
in Green Chemistry volume 17 (2015) issue 5. - page 2745-2749
doi:10.1039/c5gc00047e ...

2014

Dauth, Matthias; Wießner, Michael; Feyer, V.; Schöll, Achim; Puschnig, P.; Reinert, F.; Kümmel, Stephan
Angle resolved photoemission from organic semiconductors : orbital imaging beyond the molecular ...
in New Journal of Physics volume 16 (2014)
doi:10.1088/1367-2630/16/10/103005 ...

Branquinho de Queiroz, Thiago; Kümmel, Stephan
Charge-transfer excitations in low-gap systems under the influence of solvation and conformatio ...
in The Journal of Chemical Physics volume 141 (2014) issue 8
doi:10.1063/1.4892937 ...

Mundt, Michael; Kümmel, Stephan
Erratum: Optimized effective potential in real time : Problems and prospects in time-dependent ...
in Physical Review A volume 90 (2014) issue 5
doi:10.1103/PhysRevA.90.059904 ...

Thiele, M.; Kümmel, Stephan
Frequency Dependence of the Exact Exchange-Correlation Kernel of Time-Dependent Density-Functio ...
in Physical Review Letters volume 112 (2014) issue 8
doi:10.1103/PhysRevLett.112.083001 ...

Kronik, Leeor; Kümmel, Stephan
Gas-Phase Valence-Electron Photoemission Spectroscopy Using Density Functional Theory
First Principles Approaches to Spectroscopic Properties of Complex Materials
Berlin : Springer, 2014. - page 137-191 . - (Topics in Current Chemistry; 347)
doi:10.1007/128_2013_522 ...

Schwarz, Christian; Milan, Felix; Hahn, Tobias; Reichenberger, Markus; Kümmel, Stephan; Köhler, Anna
Ground State Bleaching at Donor–Acceptor Interfaces
in Advanced Functional Materials volume 24 (2014) issue 41. - page 6439-6448
doi:10.1002/adfm.201400297 ...

Schmidt, Tobias; Kraisler, Eli; Kronik, Leeor; Kümmel, Stephan
One-electron self-interaction and the asymptotics of the Kohn–Sham potential : an impaired rela ...
in Physical Chemistry Chemical Physics volume 16 (2014) issue 28. - page 14357-14367
doi:10.1039/C3CP55433C ...

Egger, David A.; Weissman, Shira; Refaely-Abramson, Sivan; Sharifzadeh, Sahar; Dauth, Matthias; Baer, Roi; Kümmel, Stephan; Neaton, Jeffrey B.; Zojer, Egbert; Kronik, Leeor
Outer-valence Electron Spectra of Prototypical Aromatic Heterocycles from an Optimally Tuned Ra ...
in Journal of Chemical Theory and Computation volume 10 (2014) issue 5. - page 1934-1952
doi:10.1021/ct400956h ...

Schmidt, Tobias; Kraisler, Eli; Makmal, Adi; Kronik, Leeor; Kümmel, Stephan
A self-interaction-free local hybrid functional : Accurate binding energies vis-à-vis accurate ...
in The Journal of Chemical Physics volume 140 (2014) issue 18
doi:10.1063/1.4865942 ...

2013

Zamudio-Bayer, V.; Leppert, Linn; Hirsch, K.; Langenberg, A.; Rittmann, J.; Kossick, M.; Vogel, M.; Richter, R.; Terasaki, A.; Möller, T.; v. Issendorff, B.; Kümmel, Stephan; Lau, J. T.
Coordination-driven magnetic-to-nonmagnetic transition in manganese-doped silicon clusters
in Physical Review B volume 88 (2013) issue 11
doi:10.1103/PhysRevB.88.115425 ...

Hofmann-Mees, Dirk; Appel, H.; Di Ventra, M.; Kümmel, Stephan
Determining Excitation-Energy Transfer Times and Mechanisms from Stochastic Time-Dependent Dens ...
in The Journal of Physical Chemistry B volume 117 (2013) issue 46. - page 14408-14419
doi:10.1021/jp404982d ...

Karolewski, Andreas; Armiento, Rickard; Kümmel, Stephan
Electronic excitations and the Becke-Johnson potential : The need for and the problem of transf ...
in Physical Review A volume 88 (2013) issue 5
doi:10.1103/PhysRevA.88.052519 ...

Leppert, Linn; Albuquerque, Rodrigo Q.; Foster, A. S.; Kümmel, Stephan
Interplay of Electronic Structure and Atomic Mobility in Nanoalloys of Au and Pt
in The Journal of Physical Chemistry C volume 117 (2013) issue 33. - page 17268-17273
doi:10.1021/jp404341v ...

Karolewski, Andreas; Neubig, Anne; Thelakkat, Mukundan; Kümmel, Stephan
Optical absorption in donor–acceptor polymers : alternating vs. random
in Physical Chemistry Chemical Physics volume 15 (2013) issue 46. - page 20016-20025
doi:10.1039/C3CP52739E ...

Armiento, Rickard; Kümmel, Stephan
Orbital Localization, Charge Transfer, and Band Gaps in Semilocal Density-Functional Theory
in Physical Review Letters volume 111 (2013) issue 3
doi:10.1103/PhysRevLett.111.036402 ...

Gräf, Katja; Körzdörfer, Thomas; Kümmel, Stephan; Thelakkat, Mukundan
Synthesis of donor-substituted meso-phenyl and meso-ethynylphenyl BODIPYs with broad absorption
in New Journal of Chemistry volume 37 (2013) issue 5. - page 1417-1426
doi:10.1039/C3NJ00157A ...

Karolewski, Andreas; Kronik, Leeor; Kümmel, Stephan
Using optimally tuned range separated hybrid functionals in ground-state calculations : Consequ ...
in The Journal of Chemical Physics volume 138 (2013) issue 20
doi:10.1063/1.4807325 ...

2012

Kaiser, Julian; Leppert, Linn; Welz, Hannes; Polzer, Frank; Wunder, Stefanie; Wanderka, Nelia; Albrecht, Martin; Lunkenbein, Thomas; Breu, Josef; Kümmel, Stephan; Lu, Yan; Ballauff, Matthias
Catalytic activity of nanoalloys from gold and palladium
in Physical Chemistry Chemical Physics volume 14 (2012) issue 18. - page 6487-6495
doi:10.1039/C2CP23974D ...

Leppert, Linn; Albuquerque, Rodrigo Q.; Kümmel, Stephan
Gold-platinum alloys and Vegard's law on the nanoscale
in Physical Review B volume 86 (2012) issue 24
doi:10.1103/PhysRevB.86.241403 ...

Hofmann, D.; Kümmel, Stephan
Integer particle preference during charge transfer in Kohn-Sham theory
in Physical Review B volume 86 (2012) issue 20
doi:10.1103/PhysRevB.86.201109 ...

Hofmann, D.; Körzdörfer, T.; Kümmel, Stephan
Kohn-Sham Self-Interaction Correction in Real Time
in Physical Review Letters volume 108 (2012) issue 14
doi:10.1103/PhysRevLett.108.146401 ...

Hermannsdörfer, Justus; Friedrich, Martin; Miyajima, Nobuyoshi; Albuquerque, Rodrigo Q.; Kümmel, Stephan; Kempe, Rhett
Ni/Pd@MIL-101: synergistic catalysis with cavity-conform Ni/Pd nanoparticles
in Angewandte Chemie International Edition volume 51 (2012) issue 46. - page 11473-11477
doi:10.1002/anie.201205078 ...

Kümmel, Stephan
Orbital Functionals
Fundamentals of Time-Dependent Density Functional Theory
Berlin : Springer, 2012. - page 125-138 . - (Lecture Notes in Physics; 837)
doi:10.1007/978-3-642-23518-4 ...

Hofmann, D.; Kümmel, Stephan
Self-interaction correction in a real-time Kohn-Sham scheme : Access to difficult excitations i ...
in The Journal of Chemical Physics volume 137 (2012) issue 6
doi:10.1063/1.4742763 ...

Körzdörfer, T.; Kümmel, Stephan
Self-Interaction Correction in the Kohn-Sham Framework
Theoretical and computational developments in modern density functional theory
New York : Nova Science Publishers, 2012. - page 211-222

Hofmann, D.; Klüpfel, S.; Klüpfel, P.; Kümmel, Stephan
Using complex degrees of freedom in the Kohn-Sham self-interaction correction
in Physical Review A volume 85 (2012) issue 6
doi:10.1103/PhysRevA.85.062514 ...

2011

Rissner, Ferdinand; Egger, David A.; Natan, Amir; Körzdörfer, Thomas; Kümmel, Stephan; Kronik, Leeor; Zojer, Egbert
Collectively Induced Quantum-Confined Stark Effect in Monolayers of Molecules Consisting of Pol ...
in Journal of the American Chemical Society volume 133 (2011) issue 46. - page 18634-18645
doi:10.1021/ja203579c ...

Karolewski, A.; Stein, T.; Baer, Roi; Kümmel, Stephan
Communication : Tailoring the optical gap in light-harvesting molecules
in The Journal of Chemical Physics volume 134 (2011) issue 15
doi:10.1063/1.3581788 ...

Makmal, Adi; Kümmel, Stephan; Kronik, Leeor
Dissociation of diatomic molecules and the exact-exchange Kohn-Sham potential : The case of LiF
in Physical Review A volume 83 (2011) issue 6
doi:10.1103/PhysRevA.83.062512 ...

Leppert, Linn; Kümmel, Stephan
The Electronic Structure of Gold−Platinum Nanoparticles : Collecting Clues for Why They Are Spe ...
in The Journal of Physical Chemistry C volume 115 (2011) issue 14. - page 6694-6702
doi:10.1021/jp112224t ...

Dauth, Matthias; Körzdörfer, T.; Kümmel, Stephan; Ziroff, J.; Wießner, Michael; Schöll, Achim; Reinert, F.; Arita, M.; Shimada, K.
Orbital Density Reconstruction for Molecules
in Physical Review Letters volume 107 (2011) issue 19
doi:10.1103/PhysRevLett.107.193002 ...

2010

Hofmann, D.; Körzdörfer, T.; Kümmel, Stephan
Energy transfer and Förster’s dipole coupling approximation investigated in a real-time Kohn-Sh ...
in Physical Review A volume 82 (2010) issue 1
doi:10.1103/PhysRevA.82.012509 ...

Körzdörfer, T.; Kümmel, Stephan; Marom, Noa; Kronik, L.
Erratum to "When to trust photoelectron spectra from Kohn-Sham eigenvalues : The case of organi ...
in Physical Review B volume 82 (2010) issue 12
doi:10.1103/PhysRevB.82.129903 ...

Körzdörfer, T.; Kümmel, Stephan
Single-particle and quasiparticle interpretation of Kohn-Sham and generalized Kohn-Sham eigenva ...
in Physical Review B volume 82 (2010) issue 15
doi:10.1103/PhysRevB.82.155206 ...

2009

Makmal, Adi; Armiento, Rickard; Engel, Eberhard; Kronik, Leeor; Kümmel, Stephan
Examining the role of pseudopotentials in exact-exchange-based Kohn-Sham gaps
in Physical Review B volume 80 (2009) issue 16
doi:10.1103/PhysRevB.80.161204 ...

Körzdörfer, Thomas; Tretiak, S.; Kümmel, Stephan
Fluorescence quenching in an organic donor-acceptor dyad : A first principles study
in The Journal of Chemical Physics volume 131 (2009) issue 3
doi:10.1063/1.3160666 ...

Makmal, Adi; Kümmel, Stephan; Kronik, Leeor
Fully Numerical All-Electron Solutions of the Optimized Effective Potential Equation for Diatom ...
in Journal of Chemical Theory and Computation volume 5 (2009) issue 7. - page 1731-1740
doi:10.1021/ct800485v ...

Thiele, M.; Kümmel, Stephan
Hydrodynamic perspective on memory in time-dependent density-functional theory
in Physical Review A volume 79 (2009) issue 5
doi:10.1103/PhysRevA.79.052503 ...

Thiele, Mark; Kümmel, Stephan
Photoabsorption spectra from adiabatically exact time-dependent density-functional theory in re ...
in Physical Chemistry Chemical Physics volume 11 (2009) issue 22. - page 4631-4639
doi:10.1039/B902567G ...

Karolewski, Andreas; Armiento, Rickard; Kümmel, Stephan
Polarizabilities of Polyacetylene from a Field-Counteracting Semilocal Functional
in Journal of Chemical Theory and Computation volume 5 (2009) issue 4. - page 712-718
doi:10.1021/ct8005198 ...

Thiele, M.; Kümmel, Stephan
Reconstructing the adiabatic exchange-correlation kernel of time-dependent density-functional t ...
in Physical Review A volume 80 (2009) issue 1
doi:10.1103/PhysRevA.80.012514 ...

Körzdörfer, T.; Kümmel, Stephan; Marom, Noa; Kronik, L.
When to trust photoelectron spectra from Kohn-Sham eigenvalues : The case of organic semiconduc ...
in Physical Review B volume 79 (2009) issue 20
doi:10.1103/PhysRevB.79.201205 ...

2008

Thiele, M.; Gross, E. K. U.; Kümmel, Stephan
Adiabatic Approximation in Nonperturbative Time-Dependent Density-Functional Theory
in Physical Review Letters volume 100 (2008) issue 15
doi:10.1103/PhysRevLett.100.153004 ...

Armiento, Rickard; Kümmel, Stephan; Körzdörfer, Thomas
Electrical response of molecular chains in density functional theory : Ultranonlocal response f ...
in Physical Review B volume 77 (2008) issue 16
doi:10.1103/PhysRevB.77.165106 ...

Körzdörfer, T.; Mundt, M.; Kümmel, Stephan
Electrical Response of Molecular Systems : The Power of Self-Interaction Corrected Kohn-Sham Th ...
in Physical Review Letters volume 100 (2008) issue 13
doi:10.1103/PhysRevLett.100.133004 ...

Tao, Jianmin; Perdew, John P.; Almeida, Luís Miguel; Fiolhais, Carlos; Kümmel, Stephan
Nonempirical density functionals investigated for jellium : Spin-polarized surfaces, spherical ...
in Physical Review B volume 77 (2008) issue 24
doi:10.1103/PhysRevB.77.245107 ...

Kümmel, Stephan; Kronik, Leeor
Orbital-dependent density functionals : Theory and applications
in Reviews of Modern Physics volume 80 (2008) issue 1. - page 3-60
doi:10.1103/RevModPhys.80.3 ...

Körzdörfer, Thomas; Kümmel, Stephan; Mundt, M.
Self-interaction correction and the optimized effective potential
in The Journal of Chemical Physics volume 129 (2008) issue 1
doi:10.1063/1.2944272 ...

de Wijn, A. S.; Lein, M.; Kümmel, Stephan
Strong-field ionization in time-dependent density functional theory
in EPL volume 84 (2008) issue 4
doi:10.1209/0295-5075/84/43001 ...

2007

de Wijn, Astrid S.; Kümmel, Stephan; Lein, Manfred
Numerical aspects of real-space approaches to strong-field electron dynamics
in Journal of Computational Physics volume 226 (2007) issue 1. - page 89-103
doi:10.1016/j.jcp.2007.03.022 ...

Mundt, Michael; Kümmel, Stephan
Photoelectron spectra of anionic sodium clusters from time-dependent density-functional theory ...
in Physical Review B volume 76 (2007) issue 3
doi:10.1103/PhysRevB.76.035413 ...

Perdew, John P.; Tao, Jianmin; Kümmel, Stephan
Uniform Density Limit of Exchange-Correlation Energy Functionals
Electron Correlation Methodology
Washington : American Chemical Society, 2007. - page 13-25 . - (ACS Symposium Series; 958)
doi:10.1021/bk-2007-0958.ch002 ...

Mundt, Michael; Kümmel, Stephan; van Leeuwen, Robert; Reinhard, Paul-Gerhard
Violation of the zero-force theorem in the time-dependent Krieger-Li-Iafrate approximation
in Physical Review A volume 75 (2007) issue 5
doi:10.1103/PhysRevA.75.050501 ...

2006

Kümmel, Stephan; Kronik, Leeor
Hyperpolarizabilities of molecular chains : A real-space approach
in Computational Materials Science volume 35 (2006) issue 3. - page 321-326
doi:10.1016/j.commatsci.2004.09.057 ...
4th International Conference on the Theory of Atomic and Molecular Clusters (TAMC-IV), Toulouse, France

Mundt, Michael; Kümmel, Stephan
Optimized effective potential in real time : Problems and prospects in time-dependent density-f ...
in Physical Review A volume 74 (2006) issue 2
doi:10.1103/PhysRevA.74.022511 ...

Mundt, Michael; Kümmel, Stephan; Huber, Bernd; Moseler, Michael
Photoelectron spectra of sodium clusters : The problem of interpreting Kohn-Sham eigenvalues
in Physical Review B volume 73 (2006) issue 20
doi:10.1103/PhysRevB.73.205407 ...

2005

Mundt, Michael; Kümmel, Stephan
Derivative Discontinuities in Time-Dependent Density-Functional Theory
in Physical Review Letters volume 95 (2005) issue 20
doi:10.1103/PhysRevLett.95.203004 ...

Kümmel, Stephan; Lein, Manfred
Exact exchange-correlation potentials for the strong-field ionization of the Helium atom
in Energiereiche atomare Stösse : Arbeitsbericht / EAS volume 26 (2005)

Lein, Manfred; Kümmel, Stephan
Exact Time-Dependent Exchange-Correlation Potentials for Strong-Field Electron Dynamics
in Physical Review Letters volume 94 (2005) issue 14
doi:10.1103/PhysRevLett.94.143003 ...

Mundt, M.; Kümmel, Stephan
Zeitabhängige Dichtefunktionaltheorie und der elektrische Response molekularer Ketten
in Energiereiche atomare Stösse : Arbeitsbericht / EAS volume 26 (2005)

2004

Kümmel, Stephan
Damped gradient iteration and multigrid relaxation : tools for electronic structure calculation ...
in Journal of Computational Physics volume 201 (2004) issue 1. - page 333-343
doi:10.1016/j.jcp.2004.05.018 ...

Kümmel, Stephan; Kronik, Leeor; Perdew, John P.
Electrical Response of Molecular Chains from Density Functional Theory
in Physical Review Letters volume 93 (2004) issue 21
doi:10.1103/PhysRevLett.93.213002 ...

2003

Kümmel, Stephan; Perdew, J. P.
Kohn-Sham exact-exchange for atoms and clusters
in Abstracts of Papers of the American Chemical Society volume 225 (2003)

Kümmel, Stephan; Perdew, John P.
Optimized effective potential made simple : Orbital functionals, orbital shifts, and the exact ...
in Physical Review B volume 68 (2003) issue 3
doi:10.1103/PhysRevB.68.035103 ...

Kümmel, Stephan; Perdew, John P.
Simple Iterative Construction of the Optimized Effective Potential for Orbital Functionals, Inc ...
in Physical Review Letters volume 90 (2003) issue 4
doi:10.1103/PhysRevLett.90.043004 ...

Kümmel, Stephan; Perdew, John P.
Two avenues to self-interaction correction within Kohn-Sham theory : unitary invariance is the ...
in Molecular Physics volume 101 (2003) issue 9. - page 1363-1368
doi:10.1080/0026897031000094506 ...

2002

Kümmel, Stephan
Constructing the Kohn-Sham potential for orbital dependent functionals
in Abstracts of Papers of the American Chemical Society volume 223 (2002)

2001

Kümmel, Stephan; Andrae, K.; Reinhard, P.-G.
Collectivity in the optical response of small metal clusters
in Applied Physics B volume 73 (2001) issue 4. - page 293-297
doi:10.1007/s003400100679 ...

Kümmel, Stephan; Brack, M.
Quantum fluid dynamics from density-functional theory
in Physical Review A volume 64 (2001) issue 2
doi:10.1103/PhysRevA.64.022506 ...

2000

Kümmel, Stephan; Brack, M.; Reinhard, P.-G.
Ionic and electronic structure of sodium clusters up to N=59
in Physical Review B volume 62 (2000) issue 11. - page 7602-7613
doi:10.1103/PhysRevB.62.7602 ...

Kümmel, Stephan; Berkus, T.; Reinhard, P.-G.; Brack, M.
Static electric dipole polarizabilities of Na clusters
in The European Physical Journal D volume 11 (2000) issue 2. - page 239-245
doi:10.1007/s100530070089 ...

Kümmel, Stephan
Structural and Optical Properties of Sodium Clusters studied in Density Functional Theory
Berlin, Logos Verlag, 2000. - II, 118 page
(dissertation, , )

Kümmel, Stephan; Akola, J.; Manninen, M.
Thermal Expansion in Small Metal Clusters and its Impact on the Electric Polarizability
in Physical Review Letters volume 84 (2000) issue 17. - page 3827-3830
doi:10.1103/PhysRevLett.84.3827 ...

1999

Reinhard, P.-G.; Brack, M.; Calvayrac, F.; Kohl, C.; Kümmel, Stephan; Suraud, E.; Ullrich, C. A.
Frequencies, times, and forces in the dynamics of Na clusters
in The European Physical Journal D volume 9 (1999) issue 1. - page 111-117
doi:10.1007/s100530050408 ...

Kümmel, Stephan; Reinhard, P.-G.; Brack, M.
Structure and optic response of the Na9 + and Na55 + clusters
in The European Physical Journal D volume 9 (1999) issue 1. - page 149-152
doi:10.1007/s100530050416 ...

1998

Kümmel, Stephan; Brack, M.; Reinhard, P.-G.
Ionic structure and photoabsorption in medium-sized sodium clusters
in Physical Review B volume 58 (1998) issue 4. - page R1774-R1777
doi:10.1103/PhysRevB.58.R1774 ...

Prof. Dr. Stephan Kümmel

Faculty of Mathematics, Physics und Computer Sciences
Chair of Theoretical Physics IV


Prof. Dr. Stephan Kümmel

Department of Physics

Universitäy of Bayreuth
Universitätsstrasse 30
95447 Bayreuth

Phone: +49 (0)921 / 55-3220
E-mail: stephan.kuemmel@uni-bayreuth.de
Homepage: Chair of Theoretical Physics IV

Webmaster: Univ.Prof.Dr. Hans-Werner Schmidt

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