Impact of quantum-classical correspondence on entanglement enhancement by single-mode squeezing

Sijo K. Joseph, Lock Yue Chew, Miguel A.F. Sanjuán*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Quantum entanglement between two field modes can be achieved through the collective squeezing of the two respective modes. If single-mode squeezing is performed prior to such a two-mode squeezing, an enhancement of entanglement production can happen. Interestingly, the occurrence of this enhancement can be implicitly linked to the local classical dynamical behavior via the paradigm of quantum-classical correspondence. In particular, the entanglement generated through quantum chaos is found to be hardly enhanced by prior squeezing, since it is bounded by the saturation value of the maximally entangled Schmidt state with fixed energy. These results illustrate that entanglement enhancement via initial squeezing can serve as a useful indicator of quantum chaotic behaviour.

Original languageEnglish
Pages (from-to)2603-2610
Number of pages8
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number35
StatePublished - 11 Jul 2014
Externally publishedYes


  • Continuous-variable quantum entanglement
  • Quantum chaos
  • Quantum squeezing


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