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 …

Geometry of spacetime from quantum measurements

TR Perche, E Martín-Martínez - Physical Review D, 2022 - APS
We provide a setup by which one can recover the geometry of spacetime from local
measurements of quantum particle detectors coupled to a quantum field. Concretely, we …

Harvesting correlations from thermal and squeezed coherent states

P Simidzija, E Martin-Martinez - Physical Review D, 2018 - APS
We study the harvesting of entanglement and mutual information by Unruh-DeWitt particle
detectors from thermal and squeezed coherent field states. We prove (for arbitrary spatial …

Unruh-DeWitt detectors and entanglement: The anti–de Sitter space

KK Ng, RB Mann, E Martín-Martínez - Physical Review D, 2018 - APS
We investigate entanglement harvesting in AdS 4. Applying the general results of [KK Ng,
RB Mann, and E. Martín-Martínez, Phys. Rev. D 97, 125011 (2018) PRVDAQ 2470-0010 …

Harvesting entanglement from the gravitational vacuum

TR Perche, B Ragula, E Martín-Martínez - Physical Review D, 2023 - APS
We study how quantum systems can harvest entanglement from the quantum degrees of
freedom of the gravitational field. Concretely, we describe in detail the interaction of …

Quantum temporal superposition: the case of quantum field theory

LJ Henderson, A Belenchia, E Castro-Ruiz, C Budroni… - Physical review …, 2020 - APS
Quantum field theory is completely characterized by the field correlations between
spacetime points. In turn, some of these can be accessed by locally coupling to the field …

Effective master equations for two accelerated qubits

G Kaplanek, E Tjoa - Physical Review A, 2023 - APS
We revisit the problem involving two constantly accelerating Unruh-DeWitt detectors using
open effective field theory methods. We study the time evolution of the joint detector state …

Bandlimited entanglement harvesting

LJ Henderson, NC Menicucci - Physical Review D, 2020 - APS
There are many reasons to believe that there is a fundamental minimum length scale below
which distances cannot be reliably resolved. One method of constructing a quantum field …

Transmission of quantum information through quantum fields

P Simidzija, A Ahmadzadegan, A Kempf… - Physical Review D, 2020 - APS
We investigate the quantum channel consisting of two localized quantum systems that
communicate through a scalar quantum field. We choose a scalar field rather than a tensor …

Role of quantum degrees of freedom of relativistic fields in quantum information protocols

TR Perche, E Martín-Martínez - Physical Review A, 2023 - APS
We analyze the differences between relativistic fields with or without quantum degrees of
freedom in relativistic quantum information protocols. We classify the regimes where the …