[HTML][HTML] Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime

P Forn-Díaz, JJ García-Ripoll, B Peropadre… - Nature Physics, 2017 - nature.com
The study of light–matter interaction has led to important advances in quantum optics and
enabled numerous technologies. Over recent decades, progress has been made in …

Harvesting correlations from the quantum vacuum

A Pozas-Kerstjens, E Martin-Martinez - Physical Review D, 2015 - APS
We analyze the harvesting of entanglement and classical correlations from the quantum
vacuum to particle detectors. We assess the impact on the detectors' harvesting ability of the …

Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms

A Pozas-Kerstjens, E Martín-Martínez - Physical Review D, 2016 - APS
We study how two fully featured hydrogenlike atoms harvest entanglement from the
electromagnetic field vacuum, even when the atoms are spacelike separated. We compare …

[HTML][HTML] Quantum blockchain using entanglement in time

D Rajan, M Visser - Quantum Reports, 2019 - mdpi.com
We propose a conceptual design for a quantum blockchain. Our method involves encoding
the blockchain into a temporal GHZ (Greenberger–Horne–Zeilinger) state of photons that do …

General relativistic quantum optics: Finite-size particle detector models in curved spacetimes

E Martín-Martínez, TR Perche, B de SL Torres - Physical Review D, 2020 - APS
We propose a fully covariant model for smeared particle detectors in quantum field theory in
curved spacetimes. We show how effects related to accelerated motion of the detector and …

Acceleration-assisted entanglement harvesting and rangefinding

G Salton, RB Mann, NC Menicucci - New Journal of Physics, 2015 - iopscience.iop.org
We study entanglement harvested from a quantum field through local interaction with Unruh–
DeWitt detectors undergoing linear acceleration. The interactions allow entanglement to be …

Entanglement swapping between photons that have never coexisted

E Megidish, A Halevy, T Shacham, T Dvir, L Dovrat… - Physical review …, 2013 - APS
The role of the timing and order of quantum measurements is not just a fundamental
question of quantum mechanics, but also a puzzling one. Any part of a quantum system that …

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 …

Fundamental quantum optics experiments conceivable with satellites—reaching relativistic distances and velocities

D Rideout, T Jennewein… - … and Quantum Gravity, 2012 - iopscience.iop.org
Physical theories are developed to describe phenomena in particular regimes, and
generally are valid only within a limited range of scales. For example, general relativity …

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 …