Unruh effect in quantum information beyond the single-mode approximation

DE Bruschi, J Louko, E Martín-Martínez, A Dragan… - Physical Review A …, 2010 - APS
We address the validity of the single-mode approximation that is commonly invoked in the
analysis of entanglement in noninertial frames and in other relativistic quantum-information …

Unveiling quantum entanglement degradation near a Schwarzschild black hole

E Martín-Martínez, LJ Garay, J León - Physical Review D—Particles, Fields …, 2010 - APS
We analyze the entanglement degradation provoked by the Hawking effect in a bipartite
system Alice-Rob when Rob is in the proximities of a Schwarzschild black hole while Alice is …

Observer-dependent entanglement

PM Alsing, I Fuentes - Classical and Quantum Gravity, 2012 - iopscience.iop.org
Understanding the observer-dependent nature of quantum entanglement has been a central
question in relativistic quantum information. In this paper, we will review key results on …

Cosmological quantum entanglement

E Martin-Martinez, NC Menicucci - Classical and Quantum …, 2012 - iopscience.iop.org
We review recent literature on the connection between quantum entanglement and
cosmology, with an emphasis on the context of expanding universes. We discuss recent …

Multipartite entanglement of fermionic systems in noninertial frames

J Wang, J Jing - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
The bipartite and tripartite entanglement of a 3-qubit fermionic system when one or two
subsystems accelerate are investigated. It is shown that all the one-tangles decrease as the …

Redistribution of particle and antiparticle entanglement in noninertial frames

E Martín-Martínez, I Fuentes - Physical Review A—Atomic, Molecular, and …, 2011 - APS
We analyze the entanglement tradeoff between particle and antiparticle modes of a Dirac
field from the perspective of inertial and uniformly accelerated observers. Our results show …

Particle and antiparticle bosonic entanglement in noninertial frames

DE Bruschi, A Dragan, I Fuentes, J Louko - Physical Review D—Particles …, 2012 - APS
We analyze the entanglement tradeoff between particle and antiparticle modes of a charged
bosonic field between inertial and uniformly accelerated observers. In contrast with previous …

Antiparticle detector models in QFT

TR Perche, E Martín-Martínez - Physical Review D, 2021 - APS
We analyze families of particle detector models that linearly couple to different kinds of
fermionic and bosonic fields. We also study the response of these detectors to particle and …

Entanglement harvesting and divergences in quadratic Unruh-DeWitt detector pairs

A Sachs, RB Mann, E Martín-Martínez - Physical Review D, 2017 - APS
We analyze correlations between pairs of particle detectors quadratically coupled to a real
scalar field. We find that, while a single quadratically coupled detector presents no …

Degradation of entanglement between two accelerated parties: Bell states under the Unruh effect

B Richter, Y Omar - Physical Review A, 2015 - APS
We study the entanglement of families of Unruh modes in the Bell states| Φ±〉= 1/2 (| 00〉±|
11〉) and| Ψ±〉= 1/2 (| 01〉±| 10〉) shared by two accelerated observers and find …