People


Principal Investigator

Marco Bernardi

Marco Bernardi - CV

Marco Bernardi is a Professor of Applied Physics, Physics and Materials Science at Caltech. He received his Ph.D. in Materials Science from MIT, where he worked with Prof. Jeff Grossman on novel materials and physical processes for solar energy conversion. He was a postdoc in the Physics Department at UC Berkeley, where working with Profs. Steve Louie and Jeff Neaton he developed new quantitative approaches to study the dynamics of excited electrons in materials. Marco's group at Caltech develops quantum mechanical calculations to understand electron interactions and dynamics in condensed matter, with application to electronics, optoelectronics, energy, quantum technologies and ultrafast science. Among other recognitions for his work, Marco received the Franco Strazzabosco Award in 2020, the NSF CAREER Award in 2018, the AFOSR Young Investigator Award in 2017, the Psi-K Volker Heine Young Investigator Award for electronic structure calculations in 2015, and the Intel Ph.D. Fellowship in 2013. His work favors quantitative analysis and accurate computational approaches to understand the physics and potential applications of novel materials, charting new directions in materials theory.

Email: bmarco at caltech.edu
Phone: (626) 395-2515
Address: Caltech, 1200 E California Blvd. MC 107-81, Pasadena CA, 91125


Postdocs

Ivan Maliyov

Ivan Maliyov

Ivan received a BSc in Applied Physics from V. N. Karazin Kharkiv National University in Ukraine. He obtained his MSc degree in Nanosciences from École Polytechnique and Univérsité Paris-Saclay in France. With a double-diploma program, he has also received a MSc in Medical Physics from V. N. Karazin Kharkiv National University, Ukraine. He obtained his Ph.D. in Condensed Matter Physics from Univérsité Paris-Saclay, France in 2019 and joined our group in December 2019. His current research interests are on electron transport and dynamics in the presence of external fields, magnetotransport in complex materials, and time-dependent density functional theory.

Email: imaliyov at caltech.edu

Sergio Pineda Flores

Sergio Pineda Flores

Sergio received his B.Sc. in Chemistry from Haverford College in 2015. He obtained his Ph.D. in Chemistry, at UC Berkeley advised by Eric Neuscamman, in 2020. His graduate work focused on electronic structure theory method development of Quantum Monte Carlo for both molecular and periodic systems. He then spent a year working on machine learning applications for ‘Arbitrary Lagrangian-Eulerian simulations’ within the computation directorate at Lawrence Livermore National Laboratory. His current research interests broadly encompass using and improving machine learning and quantum chemistry methods to calculate interactions between electronic and nuclear vibrational motion (e.g. non adiabatic coupling, electron-phonon scattering, exciton-phonon scattering) for both molecular and periodic systems.

Email: spflores at caltech.edu




Students

Xiao Tong

Xiao Tong

Xiao obtained a BSc in Physics at South University of Science and Technology of China (SUSTC). Her undergraduate research focused on transport properties of thermoelectric materials. She joined the Caltech Materials Science graduate program in 2015 and entered our group in 2017. She has broad interests in ab initio studies of electron and excited state dynamics, and condensed matter physics in general.

Email: xtong at caltech.edu

Jinsoo Park

Jinsoo Park

Jin-Soo received his BS degree in Electrical Engineering with a double major in Physics from Seoul National University. His undergraduate research focused on band gap engineering of BN-doped graphene using first-principles methods. His research also explored light-matter interactions in metallic nanostructures using time-dependent density functional perturbation theory. Jin-Soo entered the graduate program in Caltech Applied Physics in 2016 and joined our group in 2017. His current research interests include electron-phonon couplings in materials with spin-orbit interactions.

Email: jpark7 at caltech.edu

Benjamin K. Chang

Benjamin K. Chang

Benjamin received B.S. in Interdisciplinary Sciences from National Tsing Hua University, and M.S. in Physics from National Taiwan University under the supervision of Prof. Mei-Yin Chou. Before Caltech, He was a research assistant at the Institute of Atomic and Molecular Sciences at Academia Sinica where he continued his master's study on high-perfomance thermoelectric materials. Benjamin joined Caltech Applied Physics in 2018. His current research involves the development and application of computational methods for systems with strong correlation and electron-phonon interactions.

Email: bkchang at caltech.edu

Dhruv Desai

Dhruv Desai

Dhruv received his BS in Engineering Physics from University of Illinois at Urbana-Champaign in 2019. His undergraduate research was focused on image reconstruction of high density materials using Muon tomography. He also interned at Fermilab for a summer, working on computational studies of beam diffusion measurements using beam echoes. Dhruv joined the Caltech Applied Physics program in 2019, and his current research involves first principles calculation of magneto-transport phenomena in semiconductors and topological semimetals.

Email: ddesai at caltech.edu

Kelly Yao

Kelly Yao

Kelly received her BS in Physics from Rice University in 2019. In her undergraduate research she did theoretical investigations on the collisional properties of ultracold nonreactive molecules. For a summer she also worked on modeling charge distributions of twisted bilayer graphene at Cornell University. Kelly joined the Caltech Physics program in 2019, and her current research interest focuses on first-principle calculation of electron-phonon dynamics.

Email: jyyao at caltech.edu

Yao Luo

Yao Luo

Yao obtained his BS degree in Physics at Nanjing University (NJU). His undergraduate research was focused on phase transitions in strongly correlated systems using quantum many-body techniques and functional renormalization (fRG) under the surpervision of Prof. Qianghua Wang. Yao entered the graduate program in Caltech Applied Physics in 2021. His current research interests include developing many-body first-principles methods for polarons.

Email: yluo7 at caltech.edu

David Abramovitch

David Abramovitch

David received his BA in physics from the University of California Berkeley in 2021. He performed undergraduate research in the group of Liang Tan at LBNL which focused on the interplay of anharmonic lattice dynamics and electronic structure in halide perovskites using tight binding models. David entered the Caltech graduate program in applied physics in 2021. His research interests include combining dynamical mean field theory and ab initio electron phonon methods to treat strongly correlated materials.

Email: dabramovitch at caltech.edu



Former Group Members

Postdocs

Shiyuan Gao (2019-2022) – Research Scientist at Johns Hopkins University
Jin-Jian Zhou (2016-2020) – Assistant Professor of Physics at Beijing Institute of Technology
Luis Agapito (2015-2018) – Software Engineer at Synopsis, Inc.
Raffaello Bianco (2018-2019) – Postdoctoral Researcher at University of the Basque Country


Graduate Students

Vatsal Jhalani (2014-2019) – Postdoctoral Researcher at NASA Jet Propulsion Laboratory (JPL)
Nien-En Lee (2015-2020) – Engineer at MediaTek, Inc.
I-Te Lu (2014-2020) – Postdoctoral Fellow at Max Planck Institute for the Structure of Matter, Hamburg
Hsiao-Yi Chen (2016-2021) – Postdoctoral Fellow at RIKEN, Japan


Undergraduate

Kyle Frohna (2016) – Graduate Student at Cambridge University
Bahdan Zviazhynski (2019) – Graduate Student at Cambridge University
Shreshth Malik (2019) – Graduate Student at University College London