Increase of entanglement by local PT -symmetric operations

Shin Liang Chen, Guang Yin Chen, Yueh Nan Chen

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)


Entanglement plays a central role in the field of quantum information science. It is well known that the degree of entanglement cannot be increased under local operations. Here, we show that the concurrence of a bipartite entangled state can be increased under the local PT-symmetric operation. This violates the property of entanglement monotonicity. We also use the Bell-Clauser-Horne-Shimony-Holt and steering inequalities to explore this phenomenon.

Original languageEnglish
Article number054301
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number5
Publication statusPublished - 2014 Nov 10

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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