49 citations · 107 across the 4 of their papers we have counts for
4 papers
Coulomb drag in quantum circuits
Alex Levchenko, Alex Kamenev
We study drag effect in a system of two electrically isolated quantum point contacts (QPC), coupled by Coulomb interactions. Drag current exhibits maxima as a function of QPC gate…
Josephson current noise above Tc in superconducting tunnel junctions
Alex Levchenko
Tunnel junction between two superconductors is considered in the vicinity of the critical temperature. Superconductive fluctuations above Tc give rise to the noise of the ac Joseph…
Coulomb drag at zero temperature
Alex Levchenko, Alex Kamenev
We show that the Coulomb drag effect exhibits saturation at small temperatures, when calculated to the third order in the interlayer interactions. The zero-temperature transresista…
Keldysh Ginzburg-Landau action of fluctuating superconductors
Alex Levchenko, Alex Kamenev
We derive Ginzburg-Landau action by systematically integrating out electronic degrees of freedom in the framework of the Keldysh nonlinear sigma-model of disordered superconductors…