## Faculty

# Alex Levchenko, Assistant Professor

### Education

M.S. (1998-2003) Kharkov National University

Ph.D. (2004-2009) University of Minnesota

Postdoc (2009-2011) Argonne National Laboratory

Joined CMP group 2011

### Specialties

Quantum kinetics/Mesoscopic effects/Nonequilibrium systems

### Research Focus

**Field-theoretical treatment of many-body systems**: interacting disordered systems in the nonlinear sigma-model formulation, Keldysh type kinetic theory for out-of-equilibrium systems.

**Superconductivity**: vortex matter; coherence and proximity effects in SN, SF etc. hetero-structures and Andreev interferometers; effects of superconductive fluctuations above the critical temperature; transport in cuprates, and other unconventional, multi-band superconductors; collective phenomena and phase slips in nanowires.

**Plasmonics**: Wood anomalies and anomalous diffraction due to surface plasmon-polariton waves.

**Coulomb drag**: Coupled 2DEG bi-layers, drag in quantum circuits such as wires, quantum dots and point contacts; Giaever transformers; quantum ratchet and rectification effects.

**Graphene**: Transport theory and in particular voltage-driven quantum oscillation effects, nonequilibrium phenomena and anomalous supercurrent switching in graphene under proximity effect.

**Physics in 1D**: Luttinger liquid and beyond, interaction effects on transport properties (electrical and thermal conductances, thermoelectric effects); role of three-particle collision: electronic equilibration and thermalization; effects of spin-charge separation; driven quantum Hall edge states.

### Selected Publications

Coulomb drag in quantum circuits, Physical Review Letters 101, 216806 (2008)

Keldysh technique and nonlinear sigma-model: basic principles and applications, Advances in Physics 58, 197 (2009)

Resonantly suppressed transmission and anomalously enhanced light absorption in ultrathin metal films, Physical Review B 79, 161406(R) (2009)

Transport theory of superconductors with singular interaction corrections, Physical Review B 81, 012507 (2010)

Thermalization of nonequilibrium electrons in quantum wires, Physical Review Letters 106, 196402 (2011)