activity
19932026
most citedQuasiparticle Lifetime in a Finite System: A Non--Perturbative Approach

643 citations · 5.7k across the 196 of their papers we have counts for

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Showing 2002Show all

6 papers · 1 filter

cond-mat.mes-hall2002★ 1 cited

High cumulants of current fluctuations out of equilibrium

D. B. Gutman, Yuval Gefen, A. D. Mirlin

We consider high order current cumulants in disordered systems out of equilibrium. They are interesting and reveal information which is not easily exposed by the traditional shot n…

cond-mat.mes-hall2002★ 107 cited

Berry phase in a non-isolated system

Robert S. Whitney, Yuval Gefen

We investigate the effect of the environment on a Berry phase measurement involving a spin-half. We model the spin+environment using a biased spin-boson Hamiltonian with a time-dep…

cond-mat.str-el2002★ 52 cited

How backscattering off a point impurity can enhance the current and make the conductance greater than e^2/h per channel

D. E. Feldman, Yuval Gefen

It is well known that while forward scattering has no effect on the conductance of one-dimensional systems, backscattering off a static impurity suppresses the current. We study th…

cond-mat.mes-hall2002

Quantum Interferometry with Electrons: Outstanding Challenges

Yuval Gefen

Recent experiments involving semiconducting quantum dots embedded in Aharonov-Bohm interferometry setups suggest that information concerning the phase of electron wavefunctions can…

cond-mat.mes-hall2002

The Signs of Quantum Dot-Lead Matrix Elements: The Effect on Transport vs. Spectral Properties

Alessandro Silva, Yuval Oreg, Yuval Gefen

A small quantum dot coupled to two external leads is considered. Different signs of the dot-leads coupling matrix elements give rise to qualitatively different behavior of physical…

cond-mat.mes-hall2002★ 27 cited

Shot Noise at High Temperatures

D. B. Gutman, Yuval Gefen

We consider the possibility of measuring non-equilibrium properties of the current correlation functions at high temperatures (and small bias). Through the example of the third cum…