News

Ringvorlesung "Wissenschaft und alternative Fakten XIV"

Die Ringvorlesung startet im Mai. Wir planen eine Präsenz-Veranstaltung im Audimax der CAU. Eine online-Teilnahme wird auch möglich sein.
Informationen, Videos, Vortragsfolien, Zugang | neue webseite

Conference "Physics of Nonideal Plasmas 18"

The conference will be organized by Gianluca Gregori and held at Lady Margaret Hall, Oxford, UK,
September 16-19 2024
conference page and information

10 Jahre Max-Planck-Museum

Am 14.12. fand eine Feierstunde zum Jubiläum des Kieler Museums statt. Zeit, Ort: 17.00-18.30, Max-Planck-Hörsaal des Physikzentrum, Leibnizstraße 11. Wir informierten über neue Exponate und die digitale Ausstellung. Anschließend konnte die Ausstellung besichtigt werden.
Programm | Informationen zum Planck-Museum | Termine für Führungen

Conference "Progress in Nonequilibrium Greens Functions VIII"

The conference was organized by Hugo Strand, Claudio Verdozzi and Michael Bonitz and was held at Örebro University, Sweden,
August 7-11 2023
conference page and information
| conference poster
Link to the page of PNGF7, 2018 | Link to the conference proceedings of PNGF 7
For earlier conferences and proceedings click here

"Editors' Suggestion" in Physical Review Research: Roton feature in warm dense hydrogen predicted

July 2023: A roton-type feature was predicted for dense partially ionized hydrogen and parameters for an experimental verification were presented in:
Paul Hamann, Linda Kordts, Alexey Filinov, Michael Bonitz, Tobias Dornheim, and Jan Vorberger,
Prediction of a roton-type feature in warm dense hydrogen,
Physical Review Research (2023) | press release of Kiel University

Excellent Master degree

July 2023: Christopher Makait won an award for one of the best Master degrees of the year of the Physics Department. Congratulations!!

Excellent PhD defense

April 2023: Jan-Philip Joost defended his PhD thesis Green Functions Approach to Graphene Nanostructures with ``summa cum laude''. Congratulations!!

"Editors' pick" in Physics of Plasmas: Theoretical analysis of exotic warm dense matter

Februar 2023: A detailed theroretical analysis of the density response of warm dense matter that combines various first principles methods has been presented in:
Tobias Dornheim, Zhandos Moldabekov, Kushal ramakrishna, Panagiotis Tolias, Andrew Baczewski, Dominik Kraus, Thomas Preston, Dave Chapman, Maximilian Böhme, Tilo Doeppner, Frank Graziani, Michael Bonitz, Attila Cangi, and Jan Vorberger,
Electronic Density Response of Warm Dense Matter,
Physics of Plasmas (2023)

Themenabend für Max Planck

4. Oktober 2022: Zu Max Plancks 75. Todestag findet ein Themenabend statt Pressemitteilung | Weitere Informationen | Bericht und Fotos vom Themenabend (von Julia Siekmann)

Editors' choice in Physical Review Letters: Utrafast dynamics of electrons in graphene and MoS2 probed by ion impact

August 2022: A combined experimental and theoretical analysis of the femtosecond dynamics of electrons in freestanding graphene and MoS2 monolayers and the subsequent electron emission reveales highly charged ion impact as a novel highly sensitive diagnostic tool. The results are published in:
Anna Niggas, Janine Schwestka, Karsten Balzer, David Weichselbaum, Niclas Schlünzen, René Heller, Sascha Creutzburg, Heena Inani, Mukesh Tripathi, Carsten Speckmann, Niall McEvoy, Toma Susi, Jani Kotakoski, Ziyang Gan, Antony George, Andrey Turchanin, Michael Bonitz, Friedrich Aumayr, and Richard A. Wilhelm,
Ion-induced surface charge dynamics in freestanding monolayers of graphene and MoS2 probed by the emission of electrons,
Physical Review Letters (2022)
Press Release of Kiel University | press release of TU Vienna

Bacheor Thesis award

July 2022: Paul Luis Röhl is awarded the Best Bachelor thesis award of the Physics Department of Kiel University 2022 for his Bachelor Thesis ``Towards Improving Configuration Path Integral Monte Carlo''

New DFG Research grant

May 2022: Prof. Michael Bonitz was awarded a research grant from the German Science Foundation (DFG) for the project "Ab initio Quantum Monte Carlo Simulations of Warm Dense Matter". The group receives funding amounting to 220.550 Euros which includes a PhD student position.

New grant from Max Planck Foundation

May 2022: The Max Planck Foundation has awarded Prof. Michael Bonitz a grant of 25.000 Euros for the work on a digital Max-Planck exhibition. link

"Stop this war immediately!"

Open letter from German plasma physicists to Russian scientists.
Sign, share and distribute!
Russian letter | Web page
Letter to the president of the Russian Academy of Sciences

New DFG Research grant

April 2022: Prof. Michael Bonitz was awarded a research grant from the German Science Foundation (DFG) for the project "Short-time dynamics of correlated Fermi Systems -- a Nonequilibrium Green functions approach". The group receives funding for a PhD student position amounting to 220.000 Euros.

Research grant

The group of Prof. Michael Bonitz has received a grant for high performance computing time at the supercomputers of the HLRN Nordverbund. The project is entited "Ab Initio Simulation of Warm Dense Matter" and is a collaboration with CASUS Görlitz and Helmholtz-Zentrum Dresden-Rossendorf. The total amount is 2260 kNPL corresponding to a value of 587,600 Euros.

Dawson award for Michael Bonitz and three former PhD students.

July 2021: The Division of Plasma Physics of the American Physical Society grants the John Dawson Award for Excellence in Plasma Physics Research 2021 to Michael Bonitz and his former students Tim Schoof, Tobias Dornheim and Simon Groth, together with William Matthew Colwyn Foulkes (Imperial College London), Fionne D. Malone (QC Ware) and Travis Sjostrom (Los Alamos National Laboratory) for their joint research achievements in the field of Warm Dense Matter. The citation reads
"For developing Monte Carlo methods that overcome the fermion sign problem, leading to the first ab initio data for an electron gas under warm dense matter conditions."
Announcement of APS | poster | CAU-Pressemitteilung | Press release of CAU

Bacheor Thesis award

May 2021: Franziska Reiser is awarded the EmpowerMINT award of Kiel University 2021 for her Bachelor Thesis ``Stopping Power in Graphen-Nanoclustern im Rahmen des G1-G2-Schemas''

Ab initio results for the momentum distribution function of correlated electrons

May 2021: The first exact results for the momentum distribution of warm dense electrons have been pubished in:
K. Hunger, T. Schoof, T. Dornheim, M. Bonitz, A. Filinov,
Momentum distribution function and short-range correlations of the warm dense electron gas -- ab initio quantum Monte Carlo results,
Physical Review E 103, 053204 (2021) | arXiv:2101.00842

Fulbright study award

March 2021: Lotte Borkowski is awarded a Fulbright stipend for a one year graduate school stay in the United States.

Best PhD student award at Graphene2020

October 2020: Jan-Philip Joost wins one of the best Phd student oral contribution awards at the international online conference Graphene2020, for his talk Correlated Topological States in Graphene Nanoribbon Heterostructures, with the co-authors Antti-Pekka Jauho (TU Denmark) and Michael Bonitz
link

Research grant

The group of Prof. Michael Bonitz has received a grant for high performance computing time at the supercomputers of the HLRN Nordverbund. The project is entited "Ab Initio Simulation of Warm Dense Matter" and is a collaboration with CASUS Görlitz and Helmholtz-Zentrum Dresden-Rossendorf. The total amount is 1500 kNPL corresponding to a value of 390,000 Euros.

Nonlinear response of excotic warm dense matter demonstrated

August 2020: A new simulation study proves that highly compressed matter reacts very differently on intense electromagnetic radiation than previously thought. The results are published in:
Tobias Dornheim, Jan Vorberger, and Michael Bonitz,
Nonlinear Electronic Density Response in Warm Dense Matter,
Physical Review Letters (2020) | arXiv:2004.032299
Pressemitteilung der CAU Kiel und CASUS Görlitz | Press Release of Kiel University and CASUS Göritz

Workshop "Ab initio simulations of correlated fermions"

July 8-9 2020, Video conference
Thanks to all participants (60 each day) for a memorable event. For further information, including presentations and proceedings, see the link below.
program | further information

Dramatic speedup for Nonequilibrium Green functions (NEGF) simulations achieved

January 2020: A new simulation method (G1-G2 scheme) allows to accelerate NEGF simulations by a factor 10,000 or more. The results are published in:
Niclas Schlünzen, Jan-Philip Joost, and Michael Bonitz,
Achieving the Scaling Limit for Nonequilibrium Green Functions Simulations,
Physical Review Letters (2020) | arXiv:1909.11489
Pressemitteilung der CAU Kiel | Press Release of Kiel University

New Research grant within DFG-RSF collaboration

December 2019: Prof. Michael Bonitz was awarded a research grant from the German Science Foundation (DFG) for a collaborative project with the Russian Science Foundation, entitled "First principle Quantum Monte Carlo and Quantum Dynamics simulations of warm dense matter". The Russian partner is Dr. Pavel Levashov from the Moscow Institute for High Temperatures (IVTAN). The German group receives 298.000 Euros for the further development of CPIMC simulations.

Theory for Topological States in Graphene Nanoribbon Heterostructures

December 2019: New Green functions simulations developed by Jan-Philip Joost explain Topological States in Graphene Nanoribbon Heterostructures and achieve, for the first time, quantitative agreement with experiment. The results are published in: Jan-Philip Joost, Antti-Pekka Jauho, and Michael Bonitz,
Correlated Topological States in Graphene Nanoribbon Heterostructures,
Nano Letters 19, 9045-9050 (2019)
DOI: 10.1021/acs.nanolett.9b04075 | accepted version | arXiv:1910.01152
Pressemitteilung der CAU Kiel | Press Release of Kiel University

Editors' Pick

November 2019: The article The Static Local Field Correction of the Warm Dense Electron Gas: An ab initio Path Integral Monte Carlo Study and Machine Learning Representation, by T. Dornheim, J. Vorberger, S. Groth, N. Hoffmann, Zh. Moldabekov, and M. Bonitz, has been selected by Journal of Chemical Physics for editors' pick.
link

Research grants

The group of Prof. Michael Bonitz has received two grants for high performance computing time at the supercomputers of the HLRN Nordverbund. The total amount is 1250 kNPL corresponding to a value of 325,000 Euros.

Editors' Pick, Perspectives article

September 2019: The article Quantum hydrodynamics for plasmas-quo vadis?, by
M. Bonitz, Zh. Moldabekov, and T.S. Ramazanov, has been selected by the editors of Physics of Plasmas as "editors' pick" and is open access
link

Editors' Choice

January 2019: The article Permutation Blocking Path Integral Monte Carlo Simulations of Degenerate Electrons at Finite Temperature, by T. Dornheim, S. Groth, and M. Bonitz, has been selected by Contributions to Plasma Physics for editors' choice and for the front cover of the journal
link

Scilight article

Hanno Kählert's article Dynamic structure factor of strongly coupled Yukawa plasmas with dissipation, Physics of Plasmas 26, 063703 (2019) has been picked by the editors for coverage by a Sclilight article
DOI: 10.1063/1.5099579 | local file | Scilight article

Young researcher awards

March 2019: Simon Groth's PhD thesis has been selected as best plasma physics thesis in 2019. Simon participated in the PhD colloquium of the AMOP section of the German Physical Society in Rostock, March 2019
April 2019: Tobias Dornheim wins the Nanophysics PhD award of the Research Focus "Kiel Nano, Surface and Interface Science" (KiNSIS) and the Fakultätspreis of the Mathematisch-Naturwissenschaftliche Fakultät of CAU,
for his PhD thesis "The uniform electron gas at the warm dense matter conditions: A Permutation Blocking Path Integral Monte Carlo perspective".
The award will be presented at the Diels-Planck lecture, June 18
Fakultätspreisverleihung am 5.6. 2019, Foto: Jürgen Haacks

Festveranstaltung für Max Planck, 23.4. 2019

5 Jahre Max-Planck-Ausstellung in Kiel, Einweihung neuer Exponate
Kolloquiumsvortrag von Prof. Klaus von Klitzing ``Max Planck, seine Konstante und das neue Kilogramm''
abstract des Vortrags | Programm | Pressemitteilung

Workshop "Numerical solution of the Keldysh-Kadanoff-Baym equations"

the workshop was organized by Michael Bonitz, Jan-Philip Joost and Karsten Balzer and was held at the Physics Department of Kiel University
March 11-12 2019
Workshop flyer: for download
Link to the workshop page

Novel effect of plasma-surface interaction discovered

December 2018: A new mechanism of the interaction of ions with strongly correlated finite graphene-type fragments has been obtained: ions of certain energies create doublons in the target material. The results could allow to reversibly change the electronic properties of the material with potential applications for low-temperature plasmas. The results are published in:
Karsten Balzer, Maximilian Rodriguez Rasmussen, Niclas Schlünzen, Jan-Philip Joost, and Michael Bonitz,
Doublon formation by ions impacting a strongly correlated finite lattice system,
Phys. Rev. Lett. 121, 267602 (2018) | arXiv:1801.05267 | local file | supplement
Pressemitteilung der CAU Kiel | Press Release of Kiel University

Breakthrough in warm dense matter research

December 2018: The first ab initio results for the dynamic structure factor of the finite temperature electron gas are obtained and confirm the existence of a negative plasmon dispersion at strong coupling. The results are published in:
Tobias Dornheim, Simon Groth, Jan Vorberger, and Michael Bonitz,
Ab Initio Path Integral Monte Carlo Results for the Dynamic Structure Factor of Correlated Electrons: From the Electron Liquid to Warm Dense Matter,
Physical Review Letters 121, 255001 (2018) | arXiv:1810.12776 | local file | supplement
Pressemitteilung der CAU Kiel | Press Release of Kiel University

Young researcher award

August 2018: Tobias Dornheim wins the U30 Doctoral Scientist Award of the Plasma Physics Division of the Asian-Pacific Physical Society,
"For the invention of the permutation blocking path integral Monte Carlo method for the ab initio simulation of the warm dense electron gas and constructing the key ingredient in warm dense matter physics".
The award is combined with a talk at the annual meeting of the society, November 12-16 in Kanazawa, Japan.

Conference "Progress in Nonequilibrium Greens Functions VII"

the conference is organized by Gianluca Stefanucci, Andrea Marini and Stefano Bellucci and held in Frascati, near Rome, Italy
August 27-31 2018
Link to the conference page
Link to the page of the 2015 conference
For earlier conferences and proceedings click here

New Review article

May 2018: The paper The Uniform Electron Gas at Warm Dense Matter Conditions
by Tobias Dornheim, Simon Groth, and Michael Bonitz,
has been published in Physics Reports, vol. 744, pp. 1-86
link
Pressemitteilung | Press release | further information

PhD Thesis awards

April 2018: Simon Groth and Tobias Dornheim are awarded the degree Summa cum laude for their PhD theses.

Editors' Choice

The paper Ab initio results for the Static Structure Factor of the Warm Dense Electron Gas by Tobias Dornheim, Simon Groth, and Michael Bonitz, Contrib. Plasma Phys. 57, 468-478 (2017)
arXiv:1709.02199
was highlighted by the Journal as Editors' Choice

Complete ab initio thermodynamic data for the warm dense electron gas obtained

Simon Groth, Tobias Dornheim, Travis Sjostrom, Fionn D. Malone, W.M.C. Foulkes and Michael Bonitz,
Ab initio Exchange-Correlation Free Energy of the Uniform Electron Gas at Warm Dense Matter Conditions,
Phys. Rev. Lett. 119, 135001 (2017) | link | arXiv:1703.08074
Free energy parametrization
Pressemitteilung der CAU Kiel | Press Release of Kiel University | Press Release of Imperial College

Best Phd thesis award

Sebastian Hermanns
wins the award for the "Best Phd thesis" of the Mathematisch-Naturwissenschaftliche Fakultät of CAU (Fakultätspreis) in 2016 for his thesis Nonequilibrium Green functions. Selfenergy approximation techniques, advisor: M. Bonitz
press release of Kiel University of July 20 2017

Copyright: Claudia Eulitz

The International Conference "Strongly Coupled Coulomb Systems"

was held at Kiel University (Wissenschaftszentrum), July 30 - August 4 2017
organized by Michael Bonitz, Patrick Ludwig and Zhandos Moldabekov
First announcement
press release of Kiel University of July 31 2017 (in German)
Conference page and photos
previous conferences

Editors' Choice

The paper Nonequilibrium dynamics in the one-dimensional Fermi-Hubbard model: A comparison of the nonequilibrium Green functions approach and the density matrix renormalization group method by Niclas Schlünzen, Jan-Philip Joost, Fabian Heidrich-Meisner, and Michael Bonitz, Phys. Rev. B 95, 165139 (2017)
link | arXiv:1702.01956
was highlighted by the Journal as Editors' Choice

Young scientist award

Simon Groth
wins the Laser and Particle Beams Prize 2017 for young scientists for his contribution The Uniform Electron Gas at WDM conditions. The prize was awarded at the 37th International Workshop on High Energy Density Physics with Intense Ion and Laser Beams and is worth 2000 Euros.

News archive…