Possibility of entanglement transfer in a uniform electric field

Hui Min Lin, Ru Fen Liu, Chia Chu Chen

Research output: Contribution to journalArticlepeer-review


By using the Rashba Hamiltonian, the evolution of entanglement of two spin-12 charged particles in a homogeneous electric field is investigated. It is shown that Bell states become disentangled within finite time and there exist unentangled spin states that stay unentangled during evolution. The correlations among spin-spin, momentum-momentum, and spin-momentum entanglements are discussed in detail. Moreover, a state is constructed to illustrate the fact that spin-momentum entanglement is solely a dynamical effect that can arise without any entanglement of the other degree of freedom. The results are also extended to the mixed states where Werner states are treated.

Original languageEnglish
Article number022336
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
Publication statusPublished - 2012 Feb 27

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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