Abstract
We present an analysis of the entangling quantum kicked top focusing on the few qubit case and the initial condition dependence of the time-averaged entanglement for spin-coherent states. We show a very strong connection between the classical phase space and the initial condition dependence of even for the extreme case of two spin- qubits. This correlation is not related directly to chaos in the classical dynamics. We introduce a measure of the behavior of a classical trajectory which correlates far better with the entanglement and show that the maps of classical and quantum initial-condition dependence are both organized around the symmetry points of the Hamiltonian. We also show clear (quasi-)periodicity in entanglement as a function of number of kicks and of kick strength.
2 More- Received 15 July 2016
- Revised 1 April 2017
DOI:https://doi.org/10.1103/PhysRevE.95.062222
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