Role of phonon coupling in driving photo-excited Mott insulators towards a transient superconducting steady state
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| Format: | Preprint |
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2024
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| _version_ | 1866908515889577984 |
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| author | Ray, Sujay Eckstein, Martin Werner, Philipp |
| author_facet | Ray, Sujay Eckstein, Martin Werner, Philipp |
| contents | Understanding light-induced hidden orders is relevant for nonequilibrium materials control and future ultrafast technologies. Hidden superconducting order, in particular, has been a focus of recent experimental and theoretical efforts. In this study, we investigate the stability of light-induced $η$ pairing. Using a memory truncated implementation of nonequilibrium dynamical mean field theory (DMFT) and entropy cooling techniques, we study the long-time dynamics of the photoinduced superconducting state. In the presence of coupling to a cold phonon bath, the photodoped system reaches a quasi-steady state, which can be sustained over a long period of time in large-gap Mott insulators. We show that this long-lived prethermalized state is well described by the nonequilibrium steady state implementation of DMFT. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_19205 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Role of phonon coupling in driving photo-excited Mott insulators towards a transient superconducting steady state Ray, Sujay Eckstein, Martin Werner, Philipp Strongly Correlated Electrons Computational Physics Understanding light-induced hidden orders is relevant for nonequilibrium materials control and future ultrafast technologies. Hidden superconducting order, in particular, has been a focus of recent experimental and theoretical efforts. In this study, we investigate the stability of light-induced $η$ pairing. Using a memory truncated implementation of nonequilibrium dynamical mean field theory (DMFT) and entropy cooling techniques, we study the long-time dynamics of the photoinduced superconducting state. In the presence of coupling to a cold phonon bath, the photodoped system reaches a quasi-steady state, which can be sustained over a long period of time in large-gap Mott insulators. We show that this long-lived prethermalized state is well described by the nonequilibrium steady state implementation of DMFT. |
| title | Role of phonon coupling in driving photo-excited Mott insulators towards a transient superconducting steady state |
| topic | Strongly Correlated Electrons Computational Physics |
| url | https://arxiv.org/abs/2412.19205 |