期刊
PHYSICAL REVIEW LETTERS
卷 123, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.123.193602
关键词
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资金
- Swiss National Science Foundation [169320, 182650]
- Swiss State Secretary for Education, Research and Innovation [15.0019]
- ERC [724103, 742579]
- European Research Council (ERC) [742579] Funding Source: European Research Council (ERC)
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.
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