TY - JOUR
T1 - Possibility of entanglement transfer in a uniform electric field
AU - Lin, Hui Min
AU - Liu, Ru Fen
AU - Chen, Chia Chu
PY - 2012/2/27
Y1 - 2012/2/27
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevA.85.022336
DO - 10.1103/PhysRevA.85.022336
M3 - Article
AN - SCOPUS:84863294159
SN - 1050-2947
VL - 85
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 022336
ER -