Quantum teleportation in expanding FRW universe
arXiv:2601.20860 · doi:10.1007/s11128-026-05065-9
Abstract
We investigate the process of quantum teleportation in an expanding universe modeled by Friedmann-Robertson-Walker spacetime, focusing on two cosmologically relevant scenarios: a power-law expansion and the de Sitter universe. Adopting a field-theoretical approach, we analyze the quantum correlations between two comoving observers who share an entangled mode of a scalar field. Using the Bogoliubov transformation, we compute the teleportation fidelity and examine its dependence on the expansion rate, initial entanglement, and the mode frequency. Our findings indicate that spacetime curvature and the underlying cosmological background significantly affect the efficiency of quantum teleportation, particularly through mode mixing and vacuum structure. We also compare our results with the flat Minkowski case to highlight the role of cosmic expansion in degrading or preserving quantum information.
20 pages, 2 figures, 1 table
References in corpus (29)
- Quantum entanglement
- Experimental quantum teleportation
- Gaussian Quantum Information
- Advances in Quantum Teleportation
- Teleportation of Quantum States
- Continuous variable quantum information: Gaussian states and beyond
- Entanglement in continuous variable systems: Recent advances and current perspectives
- Alice falls into a black hole: Entanglement in non-inertial frames
- Quantum information transfer using photons
- Teleportation with a uniformly accelerated partner
- The Unruh effect in quantum information beyond the single-mode approximation
- Teleportation, Bell's Inequalities and Inseparability
- Entanglement in an expanding spacetime
- Hawking radiation, Entanglement and Teleportation in background of an asymptotically flat static black hole
- Entanglement of Dirac fields in an expanding spacetime
- Cosmological quantum entanglement
- Sudden death of entanglement and teleportation fidelity loss via the Unruh effect
- Equivalence between Entanglement and the Optimal Fidelity of Continuous Variable Teleportation
- Entanglement in curved spacetimes and cosmology
- Particle and anti-particle bosonic entanglement in non-inertial frames
- Entanglement Structure in Expanding Universes
- Optimal fidelity of teleportation of coherent states and entanglement
- Quantum teleportation in vacuum using only Unruh-DeWitt detectors
- Quantum teleportation between moving detectors
- Quantum teleportation between moving detectors in a quantum field
- Simulating quantum effects of cosmological expansion using a static ion trap
- Quantum entanglement in cosmology
- Continuous-variable quantum teleportation with vacuum-entangled Rindler modes
- Notes on teleportation in an expanding space