Continuous-variable entanglement sharing in noninertial frames

2007/01/31 by Gerardo Adesso, Ivette Fuentes-Schuller, Marie Ericsson · 4 citations
Computer Science · Physics and Astronomy · #Quantum Electrodynamics and Casimir Effect #Quantum Information and Cryptography #Quantum Mechanics and Applications #cond-mat.stat-mech #gr-qc #hep-th #quant-ph

paper · pdf · doi:10.1103/physreva.76.062112

published as Phys.Rev.A76:062112,2007 · 19 pages, 13 EPS figures (most low-res due to oversize); terminology revised

arxiv created 2007/10/26 · openalex publication_date 2007/12/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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 inaccessible modes from a noninertial 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.

Citations

• Gaussian measures of entanglement versus negativities: Ordering of two-mode Gaussian states
• Lorentz-invariant Bell’s inequality
• Hawking–Unruh effect and the entanglement of two-mode squeezed states in Riemannian space–time
• Characterizing entanglement with global and marginal entropic measures
• Continuous variable tangle, monogamy inequality, and entanglement sharing in Gaussian states of continuous variable systems
• Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
• Quantum Fields in Curved Space
• Entanglement in continuous-variable systems: recent advances and current perspectives
• Entangled light in moving frames
• General Monogamy Inequality for Bipartite Qubit Entanglement
• Particle creation by black holes
• Classical, quantum and total correlations
• Distributed Entanglement

Cited by

• Entanglement of coupled massive scalar field in background of dilaton black hole
• Spin and occupation number entanglement of Dirac fields for noninertial observers
• Sudden death of entanglement and teleportation fidelity loss via the Unruh effect
• Continuous variable methods in relativistic quantum information: characterization of quantum and classical correlations of scalar field modes in noninertial frames