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Title:
Chaotic properties of spin lattices at high temperatures
Speaker:
Abstract:
I review our old and new investigations of matters relevant to the behavior of out-of-time-order correlators (OTOCs) in spin lattices including (i) systematic investigations of largest Lyapunov exponents and Lyapunov spectra for classical spin lattices [1,2]; (ii) behavior of Lyapunov spectra near second-order phase transitions [3]; (iii) relation between Loschmidt echoes, largest Lyapunov exponents and OTOCs in lattice models[4,5,6]; and (iv) extracting system's ergodization time from OTOCs[7].
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