All Outputs (4)

Making two particle detectors in flat spacetime communicate quantumly (2024)
Journal Article
Lapponi, A., Louko, J., & Mancini, S. (2024). Making two particle detectors in flat spacetime communicate quantumly. Physical Review D, 110(2), Article 025018. https://doi.org/10.1103/physrevd.110.025018

A communication protocol with nonzero quantum capacity is found when the two communicating parts are particle detector models in (3+1)-dimensional spacetime. In particular, as detectors, we consider two harmonic oscillators interacting with a scalar... Read More about Making two particle detectors in flat spacetime communicate quantumly.

More excitement across the horizon (2024)
Journal Article
Preciado-Rivas, M. R., Naeem, M., Mann, R. B., & Louko, J. (2024). More excitement across the horizon. Physical Review D, 110(2), Article 025002. https://doi.org/10.1103/physrevd.110.025002

An Unruh-DeWitt detector falling radially into a four-dimensional Schwarzschild black hole, coupled linearly to a massless scalar field that has been prepared in the Hartle-Hawking or Unruh state, has recently been shown to exhibit a local extremum i... Read More about More excitement across the horizon.

Ambient temperature versus ambient acceleration in the circular motion Unruh effect (2024)
Journal Article
Bunney, C. R., Parry, L., Perche, T. R., & Louko, J. (2024). Ambient temperature versus ambient acceleration in the circular motion Unruh effect. Physical Review D, 109(6), Article 065001. https://doi.org/10.1103/physrevd.109.065001

It is well known that the experience of a linearly accelerated observer with acceleration a, interacting with a massless scalar field in its vacuum state in 3+1 Minkowski spacetime, is identical to that of a static observer interacting with a massles... Read More about Ambient temperature versus ambient acceleration in the circular motion Unruh effect.

Vacua in locally de Sitter cosmologies, and how to distinguish them (2024)
Journal Article
Toussaint, V., & Louko, J. (2024). Vacua in locally de Sitter cosmologies, and how to distinguish them. Physical Review D, 109(2), Article 025007. https://doi.org/10.1103/physrevd.109.025007

(1 + 1)-dimensional locally de Sitter–Friedmann-Robertson-Walker cosmologies with compact spatial sections allow cosh, sinh, and exponential evolution laws, each with a freely specifiable spatial circumference parameter, and the value of this paramet... Read More about Vacua in locally de Sitter cosmologies, and how to distinguish them.