Entanglement generation in uniformly accelerating atoms: Reexamination of the Unruh effect
Mar, 200424 pages
Published in:
- Phys.Rev.A 70 (2004) 1, 012112
- Published: Jul 30, 2004
e-Print:
- quant-ph/0403157 [quant-ph]
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Abstract: (APS)
The master equation describing the completely positive time evolution of a uniformly accelerated two-level system in weak interaction with a scalar field in the Minkowski vacuum is derived and explicitly solved. The moving system is found to be subjected to dissipation that drives its density matrix to a purely thermal equilibrium state, exhibiting a nonvanishing probability of spontaneous excitation, this phenomenon being usually referred to as the Unruh effect. Remarkably, when the uniformly accelerating system is composed by two, independent two-level atoms, the corresponding asymptotic, equilibrium state turns out to be entangled.Note:
- 24 pages, plain-TeX, no figures
- Unruh effect
- field theory: scalar
- weak interaction
- entanglement
- atom: acceleration
- master equation
- decoherence
- density matrix
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