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- Ludwig-Maximilians-Universität MünchenDE248 papers
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- Center for Theoretical PhysicsPL11 papers
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7 papers · 1 filter
Thermodynamics of the Bose-Hubbard model in a Bogoliubov+U theory
Dario Hügel, Lode Pollet
We derive the Bogoliubov+U formalism to study the thermodynamical properties of the Bose-Hubbard model. The framework can be viewed as the zero-frequency limit of bosonic dynamical…
Confocal shift interferometry of coherent emission from trapped dipolar excitons
Jens Repp, Georg J. Schinner, Enrico Schubert +6
We introduce a confocal shift-interferometer based on optical fibers. The presented spectroscopy allows measuring coherence maps of luminescent samples with a high spatial resoluti…
Diagrammatic Monte Carlo study of mass-imbalanced Fermi-polaron system
Peter Kroiss, Lode Pollet
We apply the diagrammatic Monte Carlo approach to three-dimensional Fermi-polaron systems with mass-imbalance, where an impurity interacts resonantly with a noninteracting Fermi se…
Thermalization of strongly interacting bosons after spontaneous emissions in optical lattices
Johannes Schachenmayer, Lode Pollet, Matthias Troyer +1
We study the out-of-equilibrium dynamics of bosonic atoms in a 1D optical lattice, after the ground-state is excited by a single spontaneous emission event, i.e. after an absorptio…
p-wave Superfluidity by Spin-Nematic Fermi Surface Deformation
Jan Gukelberger, Evgeny Kozik, Lode Pollet +4
We study attractively interacting fermions on a square lattice with dispersion relations exhibiting strong spin-dependent anisotropy. The resulting Fermi surface mismatch suppresse…
Diagrammatic Monte Carlo study of quasi-two-dimensional Fermi-polarons
Peter Kroiss, Lode Pollet
We apply a diagrammatic Monte Carlo method to the problem of an impurity interacting resonantly with a homogeneous Fermi bath for a quasi-two-dimensional setup. Notwithstanding the…