Continuous-variable entanglement sharing in noninertial frames
By Gerardo Adesso, Ivette Fuentes-Schuller, M. Ericsson. 2007
137 citations recorded by the source corpus.
We study the distribution of entanglement between modes of a free scalar field from the perspective of observers in uniform acceleration. We consider a two-mode squeezed state of the field from an inertial perspective, and analytically study the degradation of entanglement due to the Unruh effect, in the cases of either one or both observers undergoing uniform acceleration. We find that for two observers undergoing finite acceleration, the entanglement vanishes between the lowest frequency modes. The loss of entanglement is precisely explained as a redistribution of the inertial entanglement into multipartite quantum correlations among accessible and unaccessible modes from a non-inertial perspective. We show that classical correlations are also lost from the perspective of two accelerated observers but conserved if one of the observers remains inertial.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/015ed25b5ab3299058cc29400b5e19c48138dec0
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In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Quantum coherence and geometric quantum discord (2017, background): “In the phase space the symplectic phase-space representation, S B,B̄(r) for the two-mode squeezing transformation is (Adesso et al., 2007) S B,B̄(r) = ( cosh r1 2 sinh rZ2 sinh rZ2 cosh r1 2 ) , (512) 64 where 1 2 is a 2 × 2 identity matrix and Z2 = diag{1,−1}.”