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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2311.02197 |
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| _version_ | 1866913293317177344 |
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| author | Hahn, Dominik Colmenarez, Luis |
| author_facet | Hahn, Dominik Colmenarez, Luis |
| contents | We present a family of Floquet circuits that can interpolate between non-interacting qubits, free propagation, generic interacting, and dual-unitary dynamics. We identify the operator entanglement entropy of the two-qubit gate as a good quantitative measure of the interaction strength. We test the persistence of localization in the vicinity of the non-interacting point by probing spectral statistics, decay of autocorrelators, and measuring entanglement growth. The finite-size analysis suggests that the many-body localized regime does not persist in the thermodynamic limit. Instead, our results are compatible with an integrability-breaking phenomenon. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_02197 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Localization and integrability breaking in weakly interacting Floquet circuits Hahn, Dominik Colmenarez, Luis Statistical Mechanics Quantum Physics We present a family of Floquet circuits that can interpolate between non-interacting qubits, free propagation, generic interacting, and dual-unitary dynamics. We identify the operator entanglement entropy of the two-qubit gate as a good quantitative measure of the interaction strength. We test the persistence of localization in the vicinity of the non-interacting point by probing spectral statistics, decay of autocorrelators, and measuring entanglement growth. The finite-size analysis suggests that the many-body localized regime does not persist in the thermodynamic limit. Instead, our results are compatible with an integrability-breaking phenomenon. |
| title | Localization and integrability breaking in weakly interacting Floquet circuits |
| topic | Statistical Mechanics Quantum Physics |
| url | https://arxiv.org/abs/2311.02197 |