7 citations · 12 across the 2 of their papers we have counts for
2 papers
cond-mat.quant-gas2011★ 5 cited
Fermi Edge Resonances in Non-equilibrium States of Fermi Gases
E. Bettelheim, Y. Kaplan, P. Wiegmann
We formulate the problem of the Fermi Edge Singularity in non-equilibrium states of a Fermi gas as a matrix Riemann-Hilbert problem with an integrable kernel. This formulation is t…
cond-mat.mes-hall2010★ 7 cited
Gradient Catastrophe and Fermi Edge Resonances in Fermi Gas
Eldad Bettelheim, Yitzhak Kaplan, Paul B. Wiegmann
A smooth spatial disturbance of the Fermi surface in a Fermi gas inevitably becomes sharp. This phenomenon, called {\it the gradient catastrophe}, causes the breakdown of a Fermi s…