Asymmetric butterfly velocities in 2-local Hamiltonians
The speed of information propagation is finite in quantum systems with local interactions. In many such systems, local operators spread ballistically in time and can be characterized by a ``butterfly velocity", which can be measured via out-of-time-ordered correlation functions. In general, the...
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| Format: | Article |
| Language: | English |
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SciPost
2020-08-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.9.2.024 |