Next Article in Journal
Quantum Heat Machines Equivalence, Work Extraction beyond Markovianity, and Strong Coupling via Heat Exchangers
Next Article in Special Issue
Quantum Private Query Protocol Based on Two Non-Orthogonal States
Previous Article in Journal
A Hybrid EEMD-Based SampEn and SVD for Acoustic Signal Processing and Fault Diagnosis
Previous Article in Special Issue
Entanglement Entropy in a Triangular Billiard
Article

The Effect of Spin Squeezing on the Entanglement Entropy of Kicked Tops

by 1,† and 1,2,*,†
1
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
2
Complexity Institute, Nanyang Technological University, 18 Nanyang Drive, Singapore 637723, Singapore
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Gerardo Adesso and Jay Lawrence
Entropy 2016, 18(4), 116; https://doi.org/10.3390/e18040116
Received: 20 November 2015 / Revised: 14 March 2016 / Accepted: 22 March 2016 / Published: 2 April 2016
(This article belongs to the Special Issue Entanglement Entropy)
In this paper, we investigate the effects of spin squeezing on two-coupled quantum kicked tops, which have been previously shown to exhibit a quantum signature of chaos in terms of entanglement dynamics. Our results show that initial spin squeezing can lead to an enhancement in both the entanglement rate and the asymptotic entanglement for kicked tops when the initial state resides in the regular islands within a mixed classical phase space. On the other hand, we found a reduction in these two quantities if we were to choose the initial state deep inside the chaotic sea. More importantly, we have uncovered that an application of periodic spin squeezing can yield the maximum attainable entanglement entropy, albeit this is achieved at a reduced entanglement rate. View Full-Text
Keywords: quantum entanglement; chaos; quantum squeezing quantum entanglement; chaos; quantum squeezing
Show Figures

Figure 1

MDPI and ACS Style

Ong, E.T.S.; Chew, L.Y. The Effect of Spin Squeezing on the Entanglement Entropy of Kicked Tops. Entropy 2016, 18, 116. https://doi.org/10.3390/e18040116

AMA Style

Ong ETS, Chew LY. The Effect of Spin Squeezing on the Entanglement Entropy of Kicked Tops. Entropy. 2016; 18(4):116. https://doi.org/10.3390/e18040116

Chicago/Turabian Style

Ong, Ernest T.S., and Lock Y. Chew. 2016. "The Effect of Spin Squeezing on the Entanglement Entropy of Kicked Tops" Entropy 18, no. 4: 116. https://doi.org/10.3390/e18040116

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop