TY - JOUR
T1 - Fermi-edge resonance and tunneling in nonequilibrium electron gas
AU - Abanin, D. A.
AU - Levitov, L. S.
PY - 2005/5/13
Y1 - 2005/5/13
N2 - Fermi-edge singularity changes in a nonequilibrium system, acquiring features that reflect the structure of energy distribution. In particular, it splits into several components if the energy distribution exhibits multiple steps. While conventional approaches, such as bosonization, fail to describe the nonequilibrium problem, an exact solution for a generic energy distribution can be obtained with the help of the method of functional determinants. In the case of a split Fermi distribution, the "open loop" part of the Greens function possesses power law singularities. At the same time, the resulting tunneling density of states exhibits broadened peaks centered at Fermi sublevels.
AB - Fermi-edge singularity changes in a nonequilibrium system, acquiring features that reflect the structure of energy distribution. In particular, it splits into several components if the energy distribution exhibits multiple steps. While conventional approaches, such as bosonization, fail to describe the nonequilibrium problem, an exact solution for a generic energy distribution can be obtained with the help of the method of functional determinants. In the case of a split Fermi distribution, the "open loop" part of the Greens function possesses power law singularities. At the same time, the resulting tunneling density of states exhibits broadened peaks centered at Fermi sublevels.
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U2 - 10.1103/PhysRevLett.94.186803
DO - 10.1103/PhysRevLett.94.186803
M3 - Article
C2 - 15904393
AN - SCOPUS:27144483882
SN - 0031-9007
VL - 94
JO - Physical review letters
JF - Physical review letters
IS - 18
M1 - 186803
ER -