Generating multi-partite entanglement from the quantum vacuum with a finite-lifetime mirror

Abstract

Observers following special classes of finite-lifetime trajectories have been shown to experience an effective temperature, a generalisation of the Unruh temperature for uniformly accelerated observers. We consider a mirror following such a trajectory - and is hence localised to a strictly bounded causal diamond - that perfectly reflects incoming field modes. We find that inertial observers in the Minkowski vacuum detect particles along the half null-rays at the beginning and end of the mirror's lifetime. These particle distributions exhibit multi-partite entanglement, which reveals novel structure within the vacuum correlations. The interaction is modelled using a non-perturbative circuit model and does not suffer from energy divergences.

arXiv comment8 pages, 6 figures, 2 pages of appendices. Additional comments regarding interaction model and entanglement generation

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• Hawking radiation particle spectrum of a Kerr-Newman black hole
• Thermal effect in a causal diamond: open quantum systems approach
• On the duality of Schwarzschild-de Sitter spacetime and moving mirror
• Entanglement Degradation in Causal Diamonds
• Spectral Properties of the Symmetry Generators of Conformal Quantum Mechanics: A Path-Integral Approach
• Conformal quantum mechanics of causal diamonds: Time evolution, thermality, and instability via path integral functionals
• Limits for realizing single photons
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• Superpositions of thermalisations in relativistic quantum field theory
• Thermal nature of the causal diamond horizon: A hidden property of the inertial propagator
• Telefilters, telemirrors, and causality
• The cost of building a wall for a fermion