When entanglement harvesting is not really harvesting

E Tjoa, E Martín-Martínez - Physical Review D, 2021 - APS
We revisit the entanglement harvesting protocol when two detectors are in causal contact.
We study the role of field-mediated communication in generating entanglement between the …

Harvesting correlations in Schwarzschild and collapsing shell spacetimes

E Tjoa, RB Mann - Journal of High Energy Physics, 2020 - Springer
A bstract We study the harvesting of correlations by two Unruh-DeWitt static detectors from
the vacuum state of a massless scalar field in a background Vaidya spacetime consisting of …

Harvesting entanglement with detectors freely falling into a black hole

K Gallock-Yoshimura, E Tjoa, RB Mann - Physical Review D, 2021 - APS
We carry out the first investigation of the entanglement and mutual information harvesting
protocols for detectors freely falling into a black hole. Working in (1+ 1)-dimensional …

Quantum signatures of black hole mass superpositions

J Foo, CS Arabaci, M Zych, RB Mann - Physical Review Letters, 2022 - APS
We present a new operational framework for studying “superpositions of spacetimes,” which
are of fundamental interest in the development of a theory of quantum gravity. Our approach …

Quantum superpositions of Minkowski spacetime

J Foo, CS Arabaci, M Zych, RB Mann - Physical Review D, 2023 - APS
Within any anticipated unifying theory of quantum gravity, it should be meaningful to
combine the fundamental notions of quantum superposition and spacetime to obtain so …

Does acceleration assist entanglement harvesting?

Z Liu, J Zhang, RB Mann, H Yu - Physical Review D, 2022 - APS
We explore whether acceleration assists entanglement harvesting for a pair of uniformly
accelerated detectors in three different acceleration scenarios, ie, parallel, antiparallel and …

Entanglement amplification between superposed detectors in flat and curved spacetimes

J Foo, RB Mann, M Zych - Physical Review D, 2021 - APS
We consider an entanglement harvesting protocol between two Unruh-deWitt detectors in
quantum superpositions of static trajectories in the static de Sitter and thermal Minkowski …

Quantum teleportation with relativistic communication from first principles

E Tjoa - Physical Review A, 2022 - APS
In this paper we provide a genuine relativistic quantum teleportation protocol the classical
communication component of which makes use of relativistic causal propagation of a …

Unruh-deWitt detectors in quantum superpositions of trajectories

J Foo, S Onoe, M Zych - Physical Review D, 2020 - APS
Unruh-deWitt detectors have been utilized widely as probes for quantum particles,
entanglement and spacetime curvature. Here, we extend the standard treatment of an Unruh …

Entanglement harvesting from electromagnetic quantum fields

F Lindel, A Herter, V Gebhart, J Faist, SY Buhmann - Physical Review A, 2024 - APS
In many states of the quantum electromagnetic field, including the vacuum state,
entanglement exists between different space-time regions—even spacelike separated ones …