Spin and occupation number entanglement of Dirac fields for noninertial observers

J León, E Martín-Martínez - Physical Review A—Atomic, Molecular, and Optical …, 2009 - APS
Physical Review A—Atomic, Molecular, and Optical Physics, 2009APS
We investigate the Unruh effect on entanglement taking into account the spin degree of
freedom of the Dirac field. We analyze spin Bell states in this setting, obtaining their
entanglement dependence on the acceleration of one of the partners. Then, we consider
simple analogs to the occupation number entangled state| 00⟩+| 11⟩ but with spin quantum
numbers for| 11⟩. We show that, despite their apparent similitude, while the spinless case is
always qubit× qubit, for the spin case acceleration produces a qubit× four-level quantum …
We investigate the Unruh effect on entanglement taking into account the spin degree of freedom of the Dirac field. We analyze spin Bell states in this setting, obtaining their entanglement dependence on the acceleration of one of the partners. Then, we consider simple analogs to the occupation number entangled state but with spin quantum numbers for . We show that, despite their apparent similitude, while the spinless case is always , for the spin case acceleration produces a quantum system state. We also introduce a procedure to consistently erase the spin information from our setting preserving occupation numbers. We show how the maximally entangled state for occupation number emerges from our setting. We as well analyze its entanglement dependence on acceleration, obtaining greater entanglement degradation than in the spinless case.
American Physical Society
以上显示的是最相近的搜索结果。 查看全部搜索结果