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001010392 0247_ $$2doi$$a10.1103/PhysRevD.107.125010
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001010392 1001_ $$0P:(DE-HGF)0$$aLapponi, Alessio$$b0$$eCorresponding author
001010392 245__ $$aRelativistic quantum communication between harmonic oscillator detectors
001010392 260__ $$aWoodbury, NY$$bInst.$$c2023
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001010392 520__ $$aWe propose a model of communication employing two harmonic oscillator detectors interacting through a scalar field in a background Minkowski spacetime. In this way, the scalar field plays the role of a quantum channel, namely a bosonic Gaussian channel. The classical and quantum capacities of the communication channel are found, assuming that the detectors’ spatial dimensions are negligible compared to their distance. In particular, we study the evolution in time of the classical capacity after the detectors-field interaction is switched on for various detectors’ frequencies and coupling strengths with the field. As a result, we find a finite value of these parameters optimizing the communication of classical messages. Instead, a reliable communication of quantum messages turns out to be always inhibited.
001010392 536__ $$0G:(DE-HGF)POF4-5214$$a5214 - Quantum State Preparation and Control (POF4-521)$$cPOF4-521$$fPOF IV$$x0
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001010392 7001_ $$0P:(DE-HGF)0$$aMoustos, Dimitris$$b1
001010392 7001_ $$0P:(DE-Juel1)185963$$aBruschi, David Edward$$b2
001010392 7001_ $$0P:(DE-HGF)0$$aMancini, Stefano$$b3
001010392 773__ $$0PERI:(DE-600)2844732-3$$a10.1103/PhysRevD.107.125010$$gVol. 107, no. 12, p. 125010$$n12$$p125010$$tPhysical review / D$$v107$$x2470-0010$$y2023
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