Periodicity of dynamical signatures of chaos in quantum kicked top
- URL: http://arxiv.org/abs/2311.03795v2
- Date: Sat, 25 Nov 2023 10:38:58 GMT
- Title: Periodicity of dynamical signatures of chaos in quantum kicked top
- Authors: Sreeram PG, M.S. Santhanam
- Abstract summary: Measures of quantum correlations are employed to analyse quantum kicked top with kick strength $k$.
The periodicity depends on the number of spins represented by the kicked top.
This result can guide experiments towards the right choice of kick strengths to avoid repetitive dynamics.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: A host of dynamical measures of quantum correlations -- out-of-time ordered
correlators, Loschmidt echo, generalized entanglement and observational entropy
-- are useful to infer about the underlying classical chaotic dynamics in
quantum regime. In this work, these measures are employed to analyse quantum
kicked top with kick strength $k$. It is shown that, despite the differences in
their definitions, these measures are periodic with $k$, and the periodicity
depends on the number of spins represented by the kicked top. The periodic
behaviour arises from the structure of the kicked top Floquet operator and
spans the regime in which the corresponding classical dynamics is predominantly
chaotic. This result can guide experiments towards the right choice of kick
strengths to avoid repetitive dynamics.
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