Quantum simulation meets nonequilibrium dynamical mean-field theory: exploring the periodically driven, strongly correlated fermi-hubbard model
- Sandholzer, Kilian Institute for Quantum Electronics, ETH Zurich, Switzerland
- Murakami, Yuta Department of Physics, University of Fribourg, Switzerland
- Görg, Frederik Institute for Quantum Electronics, ETH Zurich, Switzerland
- Minguzzi, Joaquín Institute for Quantum Electronics, ETH Zurich, Switzerland
- Messer, Michael Institute for Quantum Electronics, ETH Zurich, Switzerland
- Desbuquois, Rémi Institute for Quantum Electronics, ETH Zurich, Switzerland
- Eckstein, Martin Department of Physics, University of Erlangen-Nürnberg, Erlangen, Germany
- Werner, Philipp Department of Physics, University of Fribourg, Switzerland
- Esslinger, Tilman Institute for Quantum Electronics, ETH Zurich, Switzerland
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08.11.2019
Published in:
- Physical Review Letters. - 2019, vol. 123, no. 19, p. 193602
English
We perform an ab initio comparison between nonequilibrium dynamical mean-field theory and optical lattice experiments by studying the time evolution of double occupations in the periodically driven Fermi-Hubbard model. For off-resonant driving, the range of validity of a description in terms of an effective static Hamiltonian is determined and its breakdown due to energy absorption close to resonance is demonstrated. For near-resonant driving, we investigate the response to a change in driving amplitude and discover an asymmetric excitation spectrum with respect to the detuning. In general, we find good agreement between experiment and theory, which cross validates the experimental and numerical approaches in a strongly correlated nonequilibrium system.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 327746
- DOI 10.1103/PhysRevLett.123.193602
- Persistent URL
- https://folia.unifr.ch/unifr/documents/308136
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