Sudden change in quantum and classical correlations and the Unruh effect

2010/03/31 by L. C. Celeri, A. G. S. Landulfo, R. M. Serra +1 · 2 citations
Physics and Astronomy · #quant-ph #gr-qc #hep-th

paper · pdf · doi:10.1103/physreva.81.062130

published as Phys.Rev.A81:062130,2010 · Published version

arxiv created 2010/06/28 · arxiv updated 2015/03/13

Abstract

We use the Unruh effect to analyze the dynamics of classical and quantum correlations for a two-qubit system when one of them is uniformly accelerated for a finite amount of proper time. We show that the quantum correlation is completely destroyed in the limit of infinite acceleration, while the classical one remains nonzero. In particular, we show that such correlations exhibit the so-called sudden-change behavior as a function of acceleration. Eventually, we discuss how our results can be interpreted when the system lies in the vicinity of the event horizon of a Schwarzschild black hole.

Cited by

• Nonlocality and Entanglement via the Unruh effect
• Does the Hawking effect have the same impact on quantum entanglement and coherence in curved spacetime?

Related

• Classical analog of the Unruh effect
• Noninertial quantum mechanical fluctuations
• Classical Correspondence of Unruh Effect
• Classical roots of the Unruh and Hawking effects
• Physically Accessible and Inaccessible Quantum Correlations of Dirac Fields in Schwarzschild Spacetime