期刊
PHYSICAL REVIEW B
卷 92, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.92.195123
关键词
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资金
- ERC [278023]
- SNSF [200021_140648]
- Swiss National Science Foundation (SNF) [200021_140648] Funding Source: Swiss National Science Foundation (SNF)
- European Research Council (ERC) [278023] Funding Source: European Research Council (ERC)
We use a nonequilibrium implementation of extended dynamical mean-field theory in combination with a noncrossing approximation impurity solver to study the effect of dynamical screening in photoexcited Mott insulators. The insertion of doublons and holes adds low-energy screening modes and leads to a reduction of the Mott gap. The coupling to low-energy bosonic modes furthermore opens new relaxation channels and significantly speeds up the thermalization process. We also investigate the effect of the energy distribution of the photo doped carriers on the screening.
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