6 papers
One-dimensional transport of bosons between weakly linked reservoirs
D. P. Simpson, D. M. Gangardt, I. V. Lerner +1
We study a flow of ultracold bosonic atoms through a one-dimensional channel that connects two macroscopic three-dimensional reservoirs of Bose-condensed atoms via weak links imple…
Quantum Corrections to the Polarizability and Dephasing in Isolated Disordered Metals
M. Treiber, P. M. Ostrovsky, O. M. Yevtushenko +2
We study the quantum corrections to the polarizability of isolated metallic mesoscopic systems using the loop-expansion in diffusive propagators. We show that the difference betwee…
Thermal noise and dephasing due to electron interactions in non-trivial geometries
M. Treiber, C. Texier, O. M. Yevtushenko +2
We study Johnson-Nyquist noise in macroscopically inhomogeneous disordered metals and give a microscopic derivation of the correlation function of the scalar electric potentials in…
Dimensional Crossover of the Dephasing Time in Disordered Mesoscopic Rings: From Diffusive through Ergodic to 0D Behavior
M. Treiber, O. M. Yevtushenko, F. Marquardt +2
We analyze dephasing by electron interactions in a small disordered quasi-one dimensional (1D) ring weakly coupled to leads, where we recently predicted a crossover for the dephasi…
Crossover from diffusive to strongly localized regime in two-dimensional systems
A. M. Somoza, J. Prior, M. Ortuno +1
We have studied the conductance distribution function of two-dimensional disordered noninteracting systems in the crossover regime between the diffusive and the localized phases. T…
Dimensional Crossover of the Dephasing Time in Disordered Mesoscopic Rings
M. Treiber, O. M. Yevtushenko, F. Marquardt +2
We study dephasing by electron interactions in a small disordered quasi-one dimensional (1D) ring weakly coupled to leads. We use an influence functional for quantum Nyquist noise…