Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 29: Other Low Temperature Topics: Cold Atomic Gases

TT 29.4: Vortrag

Dienstag, 21. März 2017, 12:45–13:00, HSZ 201

Full counting statistics with determinantal quantum Monte Carlo — •Stephan Humeniuk — Institute for Theoretical Physics III, University of Stuttgart

Within the framework of determinantal quantum Monte Carlo, a method is presented for computing the probability distribution of the total particle number and magnetization on a subregion of a system of interacting fermions. Such full counting statistics can be obtained from repeated projective measurements in cold atoms experiments with single-site and single-atom resolution. Applied to the attractive Hubbard model, the full counting statistics reveals the size of a preformed pair or Cooper pair as a function of interaction strength.