Seminar über Theoretische Festkörperphysik |
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Vortragender: | Dmitri Ivanov |
Datum: | 10.07.2017 14:00 |
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Ort: | Room 10.01, 10th Floor, Bldg. 30.23, KIT Campus South |
Zugehörigkeit: | University of Zürich |
Gastgeber: | Prof. Dr. Alexander Mirlin |
Abstract
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.