Институт теоретической физики им. Л.Д. Ландау РАН
L.D. Landau Institute for Theoretical Physics RAS
Landau Days 2017
Dynamical response of impurities in fermionic cold atoms: what we learn from full counting statistics and Toeplitz determinants
Date/Time: 12:00 27-Jun-2017
Full counting statistics in fermionic systems often involves interference of multiple particle-hole excitations close to a Fermi surface. This type of multi-particle
interference also emerges in other physical and mathematical contexts, including Fermi-edge singularity, orthogonality catastrophe and Fisher-Hartwig conjecture for Toeplitz determinants. A remarkable feature of this problem is the contributions of multiple sectors of states differing by the total number of particles. In this talk, I briefly overview earlier works on full counting statistics relevant for this problem and apply those insights to recent Ramsey-interference experiments on cold fermionic atoms.
Ivanov Dmitry A.
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