112 citations · 132 across the 6 of their papers we have counts for
4 papers · 1 filter
Comment on ``Quantum Pump for Spin and Charge Transport in a Luttinger Liquid''
Dima E. Feldman, Yuval Gefen
This is a Comment to the paper by Sharma and Chamon in Phys. Rev. Lett. 87 (2001) 096401 (cond-mat/0011025). We show that the prediction of the universal charge pumped per cycle in…
Does Berry phase exist for a system coupled to its environment?
Robert S. Whitney, Yuval Gefen
Berry phase was originally defined for systems whose states are separated by finite energy gaps. One might naively expect that a system without a gap cannot have a Berry phase. Des…
Can backscattering off an impurity enhance the current?
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…
Spectral scrambling in Coulomb-blockade quantum dots
Y. Alhassid, Yuval Gefen
We study the fluctuations of an energy level as a function of the number of electrons added to a Coulomb-blockade quantum dot. A microscopic calculation in the limit of Koopman…