Quantum Signaling in Relativistic Motion and Across Acceleration Horizons

Abstract

The quantum channel between two particle detectors provides a prototype framework for the study of wireless quantum communication via relativistic quantum fields. In this article we calculate the classical channel capacity between two Unruh-DeWitt detectors arising from couplings within the perturbative regime. To this end, we identify the detector states which achieve maximal signal strength. We use these results to investigate the impact of relativistic effects on signaling between detectors in inertial and uniformly accelerated motion which communicate via a massless field in Minkowski spacetime.

v3: correction of Eq.(53) and Fig.5; v2: update to published version

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Cited by in corpus (25)

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• Localized non-relativistic quantum systems in curved spacetimes: a general characterization of particle detector models
• Harvesting mutual information from BTZ black hole spacetime
• The geometry of spacetime from quantum measurements
• Minimal energy cost of entanglement extraction
• Relativistic quantum communication between harmonic oscillator detectors
• Relativistic Quantum Communication: Energy cost and channel capacities
• Ambient temperature versus ambient acceleration in the circular motion Unruh effect
• Does acceleration always degrade quantum entanglement for tetrapartite Unruh-DeWitt detectors?
• The role of quantum degrees of freedom of relativistic fields in quantum information protocols
• Duality in the dynamics of Unruh-DeWitt detectors in conformally related spacetimes
• Non-perturbative simple-generated interactions with a quantum field for arbitrary Gaussian states
• Mutual information harvested by uniformly accelerated particle detectors
• Non-perturbative method for particle detectors with continuous interactions
• Transmission of Information in Non-Local Field Theories
• The Fermi problem in disordered systems
• Lorentz-covariant sampling theory for fields
• An Information-Theoretic Analog of the Twin Paradox
• Entanglement harvesting: detector gap and field mass optimization
• Entangled states dynamics of moving two-level atoms in a thermal field bath