News

Source: http://bernardi.caltech.edu/news/index.html Parent: http://bernardi.caltech.edu/

• We show a machine learning method to compress phonon interactions and accelerate their calculation. See the paper in Physical Review Letters and the story from Caltech News: New AI Technique Unravels Quantum Atomic Vibrations in Materials. 9-16-25
• We solve the polaron problem in real materials by developing first-principles diagrammatic Monte Carlo calculations. Read the article in Nature Physics and the stories from Caltech News and Physics World. 7-15-25
• Marco gives an invited talk at the KITP on our recent work on strong coupling and compressing interactions in matter.\ The talk is available online on YouTube. 2-3-25
• We report a technique to compress electron-phonon interactions and greatly accelerate their calculation. Read the paper in Physical Review X and the story from Caltech News. 6-1-24
• Our paper on electron-phonon interactions in strongly correlated materials is featured as Editor's Suggestion in Physical Review Materials. 9-9-23
• David Abramovitch receives the NSF Graduate Research Fellowship. Congratulations! 4-10-23
• Our work on spin-phonon interactions and spin dynamics is published in Physical Review Letters and Physical Review B as Editor's Suggestion. Read the story from Caltech News. 11-15-22
• Marco gives a plenary talk at 23rd Asian Workshop on First-Principles Electronic Structure Calculations. 11-1-22
• Our group is part of the DOE SciDAC center for simulation of nonequilibrium dynamics in materials. 9-1-22
• We receive support from the National Science Foundation to continue the development of our Perturbo code. Stay tuned! 8-1-22
• Marco's IPAM talk "Precise Quantum Mechanical Calculations of Electron Interactions and Dynamics" is available on YouTube. 4-18-22
• We released Perturbo v2.0 with many new capabilities. 3-14-22
• Our work on electron-phonon interactions in correlated materials, done in collaboration with Nicola Marzari's group at EPFL, \ is published in Physical Review Letters. Read the news article from EPFL. 9-15-21
• Hsiao-Yi wins a RIKEN Special Postdoctoral Fellowship and moves to Japan. Best of luck! 9-1-21
• I-Te receives the Alexander von Humboldt Fellowship and starts a postdoc at Max Planck, Hamburg. Well done! 8-15-21
• Hsiao-Yi wins Caltech's Demetriades-Tsafka-Kokkalis Prize for best PhD thesis in Nanotechnology. 6-2-21
• Marco has been promoted to Full Professor. Congratulations! 6-1-21
• Marco's CIQM seminar at Harvard on "First-principles electron dynamics in quantum materials" is available on YouTube. 5-1-21
• Caltech news features a story on our Perturbo code. 4-1-21
• Marco receives the ISSNAF "Franco Strazzabosco" Young Investigator Award for Research in Engineering. 12-1-20
• We hold the second virtual workshop of our PERTURBO code with over 120 participants. 11-18-20
• We hold the first virtual workshop of our PERTURBO code with over 50 participants. 10-15-20
• Marco's talk at the ICTP workshop on ultrafast charge dynamics in semiconductors is available on YouTube. 9-30-20
• Our papers on piezoelectric electron-phonon interaction and first-principles exciton-phonon calculations are both published in Physical Review Letters. 9-15-20
• Hsiao-Yi Chen receives the prestigious J. Yang Fellowship from the J.Yang & Family Foundation. Congratulations! 5-5-20
• Marco and Jin-Jian were to give invited talks at the 2020 APS March Meeting. Slides of their talks are available on the APS website (links: Marco's talk on ultrafast dynamics , Jin-Jian's talk on charge transport in oxides ) 4-1-20
• Our PERTURBO code is available for download. \ PERTURBO computes electron-phonon interactions, charge transport, and ultrafast carrier dynamics. It is efficient, parallelized, and carefully tested. Its workflows are intuitive and user friendly. \ The paper accompanying PERTURBO is available on arXiv. 2-6-20
• Caltech features our recent work on charge transport in strontium titanate. 12-9-19
• Marco wins an Emerging Young Investigator Award at the 4th Functional Oxide Thin Films for Advanced Energy and Information Technology Conference in Portugal. 7-20-19
• Marco gives two invited talks at the ACS Spring Meeting in Orlando 4-1-19
• We give talks at the APS March Meeting in Boston 3-10-19
• Shiyuan Gao joins the group as a new postdoc 1-15-19
• Our work on electron-phonon interactions due to soft modes is published in Physical Review Letters. 11-30-18
• We receive DOE funding as part of a Caltech team investigating quantum states in two-dimensional materials 9-28-18
• Our joint theory-experiment work on the Rashba effect in halide perovskites is featured in the Caltech News! 6-20-18
• The APS March Meeting comes to Los Angeles! Marco will give an invited talk on carrier dynamics and a tutorial on electron-phonon coupling. The group will give talks on several topics 3-1-18 .
• Marco receives the NSF CAREER Award 12-15-17
• Our work on hot carriers in GaN and the origin of the LED efficiency droop is featured in the Caltech News! 11-20-17
• Marco receives the AFOSR Young Investigator Award 10-10-17
• Marco gives an invited talk at the World Association of Theoretical and Computational Chemistry conference. 9-1-17
• We receive funding from Caltech's Space Solar Initiative. 8-1-17
• Our joint experiment-theory work on hot carrier super-diffusion is featured in the Caltech News! 6-15-17
• Congratulations to Vatsal for passing the candidacy exam! 6-14-17
• Two graduate students, Hsiao-Yi Chen (Physics) and Xiao Tong (Materials Science), join the group! 4-15-17
• Marco gives talks at Trinity College, Cambridge University and EPFL on our work on electron-phonon interactions and excited carrier dynamics. 4-15-17
• Our work on energy storage using defects is accepted in Scientific Reports. 4-1-17
• Our work on Super-Diffusion of Excited Carriers in Silicon, a theory-experiment collaboration with Prof. Ahmed Zewail, is accepted in Nature Communications! 3-3-17
• Luis, Jin-Jian, Vatsal, I-Te and Marco will present at the APS March Meeting. 3-2-17
• Marco gives two talks at the TMS conference in San Diego. 3-1-17
• Marco gives a Materials Research Lecture at Caltech on the Electron-Phonon Interaction. 2-15-17
• Jin-Jian's work on ab initio polar phonon scattering is published in Phys. Rev. B as a Rapid Communication. 11-28-16
• The Psi-K features Marco's review article on ab initio electron and phonon dynamics. Read the summary and the review article. 11-4-16
• The NERSC supercomputing center features Marco's research on carrier dynamics and solar cells. Read the news article and interview. 10-19-16
• We receive funding through the NSF SI2 program to develop a code for electron dynamics 9-10-16
• Marco gives an invited talk at the Keck Energy Materials Research workshop \ at CSU Long Beach 9-10-16
• Marco's research on hot carriers featured on phys.org 6-13-16
• Vatsal is awarded the prestigious Resnick graduate fellowship. Congratulations! 5-17-16
• Marco's review on computational methods for solar cells published in Energy and Environmental Science 5-12-16
• Congratulations to I-Te for passing the candidacy exam! 4-26-16
• Vatsal, I-Te, Seva, and Marco give talks at the APS March Meeting in Baltimore 3-14-16
• We receive funding through the Caltech-GIST Memorandum of Understanding! 1-27-16
• The group is awarded a start-up supercomputing time allocation at XSEDE, an NSF-funded center 1-25-16
• Marco gives an invited talk at the biennial Total Energy and Force Methods international workshop in Luxembourg 1-14-16
• The group is awarded supercomputing time at NERSC, a DOE-funded center 1-12-16
• Jin Jian Zhou joins the group as a JCAP-funded postdoc 12-15-15
• Marco will give three invited talks in Europe, at Oxford, Imperial, and CFEL in Hamburg, on our recent work on ultrafast carrier dynamics in semiconductors 11-15-15
• We obtain funding from JCAP, a DOE-BES supported hub to study the basic science of artificial photosynthesis 10-1-15
• Luis Agapito joins the group as a senior postdoc 10-1-15
• Ivanov Vsevolod (Seva) joins the group 10-1-15
• Marco wins the 2015 Psi-K Volker Heine Young Investigator Award 9-8-15
• Marco gives an invited talk at the Psi-k conference 9-6-15
• Vatsal Jhalani and I-Te Lu join the group 9-1-15
• We obtain funding from Dow Chemical and the Resnick Institute 9-1-15
• Our new cluster, Tempo, completes the first production run 8-31-15