| Autor: |
Xizhi Han (韩希之), Sean A. Hartnoll |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
SciPost Physics, Vol 7, Iss 4, p 045 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2542-4653 |
| DOI: |
10.21468/SciPostPhys.7.4.045 |
| Popis: |
Operator growth in spatially local quantum many-body systems defines a scrambling velocity. We prove that this scrambling velocity bounds the state dependence of the out-of-time-ordered correlator in local lattice models. We verify this bound in simulations of the thermal mixed-field Ising spin chain. For scrambling operators, the butterfly velocity shows a crossover from a microscopic high temperature value to a distinct value at temperatures below the energy gap. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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