TY  - JOUR
AU  - Lapponi, Alessio
AU  - Moustos, Dimitris
AU  - Bruschi, David Edward
AU  - Mancini, Stefano
TI  - Relativistic quantum communication between harmonic oscillator detectors
JO  - Physical review / D
VL  - 107
IS  - 12
SN  - 2470-0010
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2023-03036
SP  - 125010
PY  - 2023
AB  - We propose a model of communication employing two harmonic oscillator detectors interacting through a scalar field in a background Minkowski spacetime. In this way, the scalar field plays the role of a quantum channel, namely a bosonic Gaussian channel. The classical and quantum capacities of the communication channel are found, assuming that the detectors’ spatial dimensions are negligible compared to their distance. In particular, we study the evolution in time of the classical capacity after the detectors-field interaction is switched on for various detectors’ frequencies and coupling strengths with the field. As a result, we find a finite value of these parameters optimizing the communication of classical messages. Instead, a reliable communication of quantum messages turns out to be always inhibited.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001016049800006
DO  - DOI:10.1103/PhysRevD.107.125010
UR  - https://juser.fz-juelich.de/record/1010392
ER  -