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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/2304.05913 |
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| _version_ | 1866917619537281024 |
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| author | Sadhasivam, Vijay Ganesh Hunt, Andrew C. Meuser, Lars Litman, Yair Althorpe, Stuart C. |
| author_facet | Sadhasivam, Vijay Ganesh Hunt, Andrew C. Meuser, Lars Litman, Yair Althorpe, Stuart C. |
| contents | Quantum scrambling often gives rise to short-time exponential growth in out-of-time-ordered correlators (OTOCs). The scrambling rate over an isolated saddle point at finite temperature is shown here to be reduced by a hierarchy of quenching processes. Two of these appear in the classical limit, where escape from the neighbourhood of the saddle reduces the rate by a factor of two, and thermal fluctuations around the saddle reduce it further; a third process can be explained semiclassically as arising from quantum thermal fluctuations around the saddle, which are also responsible for imposing the Maldacena-Shenker-Stanford bound. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_05913 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Thermal quenching of classical and semiclassical scrambling Sadhasivam, Vijay Ganesh Hunt, Andrew C. Meuser, Lars Litman, Yair Althorpe, Stuart C. Chaotic Dynamics Quantum scrambling often gives rise to short-time exponential growth in out-of-time-ordered correlators (OTOCs). The scrambling rate over an isolated saddle point at finite temperature is shown here to be reduced by a hierarchy of quenching processes. Two of these appear in the classical limit, where escape from the neighbourhood of the saddle reduces the rate by a factor of two, and thermal fluctuations around the saddle reduce it further; a third process can be explained semiclassically as arising from quantum thermal fluctuations around the saddle, which are also responsible for imposing the Maldacena-Shenker-Stanford bound. |
| title | Thermal quenching of classical and semiclassical scrambling |
| topic | Chaotic Dynamics |
| url | https://arxiv.org/abs/2304.05913 |