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- Alex Kamenev
- 2011

The physics of non-equilibrium many-body systems is one of the most rapidly expanding areas of theoretical physics. Traditionally used in the study of laser physics and superconducting kinetics,â€¦ (More)

- Vlad Elgart, Alex Kamenev
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2004

We present an efficient method to calculate probabilities of large deviations from the typical behavior (rare events) in reaction-diffusion systems. This method is based on a semiclassical treatmentâ€¦ (More)

- Vlad Elgart, Alex Kamenev
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2006

Equilibrium phase transitions are associated with rearrangements of minima of a (Lagrangian) potential. Treatment of nonequilibrium systems requires doubling of degrees of freedom, which may be oftenâ€¦ (More)

- Matthew Parker, Alex Kamenev
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

Birth-death processes often exhibit an oscillatory behavior. We investigate a particular case where the oscillation cycles are marginally stable on the mean-field level. An iconic example of such aâ€¦ (More)

- Carlos Escudero, Alex Kamenev
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

We consider the switching rate of a metastable reaction scheme, which includes reactions with arbitrary steps, e.g., kA<-->(k+r)A (both forward and reverse reaction steps are allowed to happen).â€¦ (More)

- Alex Kamenev, Baruch Meerson
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2008

We develop a theory of first passage processes in stochastic nonequilibrium systems of birth-death type using two closely related epidemiological models as examples. Our method employs theâ€¦ (More)

- Alex Kamenev, Marc MÃ©zard
- 1999

We compute the correlation functions of the eigenvalues in the Gaussian unitary ensemble using the fermionic replica method. We show that non-trivial saddle points, which break replica symmetry, mustâ€¦ (More)

The quantum kicked rotor QKR is known to exhibit dynamical localization in the space of its angular momentum. The present paper is devoted to the systematic first-principles without a regularizerâ€¦ (More)

We consider a class of systems where, due to the large mismatch of dielectric constants, the Coulomb interaction is approximately oneâ€“dimensional. Examples include ion channels in lipid membranes andâ€¦ (More)

The purpose of this review is to provide a comprehensive peda gogical introduction into Keldysh technique for interacting outâ€“ofâ€“equilibrium fermionic a nd bosonic systems. The emphasis is put on aâ€¦ (More)