## Condensed Matter Physics

There are numerous graduate students and postdocs working in condensed matter physics and statistical mechanics.

Several people working in this area are also members of the Center for Simulational Physics.

The department offers several advanced graduate courses in condensed matter theory, many-body theory, mathematical and computational methods, and statistical mechanics.

### Researchers

## Biophysics and Bioinformatics

Biochemical reaction networks; bioinformatics; biological molecules; computational biology; functional genomics; neural networks; polymers; spectroscopy of biomaterials.

## Computational and Simulational Methods

Computational many-body perturbation theory; density functional theory; exact diagonalization; lattice dynamics; molecular dynamics; Monte-Carlo simulation; numerical renormalization group; parallel supercomputing; quantum Monte-Carlo.

## Electron and Phonon Dynamics in Nanostructures

Carbon fullerenes and nanotubes; electron-phonon interactions in nanoparticles; mesoscopic and low-dimensional systems; optical properties of nanostructures; phonon dynamics in nanoparticles and nanocrystals; semiconductor films and superlattices.

## Laser Spectroscopy Methods

Coherent transient spectroscopy; fluorescence line narrowing; IR spectroscopy; nonlinear spectroscopy; photoconductivity; photon avalanche; photon echo; spectral hole burning; thermoluminescence; ultrafast spectroscopy.

## Magnetic Properties of 2D and 3D materials

## Material Science

Ferroelectric materials; optoelectronic materials; phosphor materials; photorefractive materials; photovoltaic materials; semiconductors.

## Materials Synthesis

Laser-heated pedestal growth; molecular-beam epitaxy.

## Optical Properties of Solids

Charge transfer processes in insulators; dephasing and decoherence in solids; dynamical processes in glasses and solids; dynamics of elementary excitations; electron-phonon and phonon-phonon interactions; energy transfer and energy relaxation; molecular impurities; phonon dynamics in disordered and amorphous systems.

## Phase Transitions and Critical Phenomena

Dynamical critical phenomena; finite-size scaling; magnetic phase transitions; phase transitions in alloys; solid-solid phase transitions; spin dynamics.

## Spin-electronics in Organics

## Statistical Mechanics

Fick's law of diffusion; fractional statistics; hardsphere fluids; Langevin equation; low-dimensional fluids; nonequilibrium statistical mechanics; recurrence relation method.

## Strongly Correlated Quantum Systems

Bose-Einstein condensation; colossal magnetoresistance; Hubbard model; Luttinger liquid theory; metal-insulator transitions; nonperturbative methods; quantum Hall effect; superconductivity; vortex dynamics in quantum fluids.

## Surface Physics

Crystal growth; molecule-surface interactions; surface structure and reactivity; vibrational properties of molecules on surfaces.

## Theoretical Materials Science

Density functional theory; electronic structure theory; high-pressure phenomena; periodic composites and superlattices; structure and dynamics of lattice defects; theory of compound solid solutions; transition-metal oxides.

Shenje, S.Larson, Y.Zhao, S. Ullrich: Composition Effects on Ultrafast Optical Properties of CuxOy Thin Films: A Transient Absorption Study. J. Phys. Chem. C 2020 124 (45), 24908-24918.

#### Effect of Charge Localization on the Effective Hyperfine Interaction in Organic Semiconducting Polymers

R Geng, RC Subedi, HM Luong, MT Pham, W Huang, X Li, K Hong, Ming Shao, Kai Xiao, Lawrence A Hornak, Tho D Nguyen "Effect of Charge Localization on the Effective Hyperfine Interaction in Organic Semiconducting Polymers", Physical review letters 120 (8), 086602 (2018)