Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Moustos, Dimitris"'
Publikováno v:
Phys. Rev. D 110, 024022 (2024)
A small quantum system within the gravitational field of a massive body will be entangled with the quantum degrees of freedom of the latter. Hence, the massive body acts as an environment, and it induces non-unitary dynamics, noise, and decoherence t
Externí odkaz:
http://arxiv.org/abs/2402.11663
Autor:
Kollas, Nikos K., Moustos, Dimitris
Publikováno v:
Phys. Rev. D 109, 065025 (2024)
We revisit the mathematics of exactly solvable Unruh-DeWitt detector models, interacting with massless scalar fields under instantaneous interactions, to construct a relativistic quantum Otto heat engine. By deriving the conditions under which the th
Externí odkaz:
http://arxiv.org/abs/2312.06452
Publikováno v:
Phys. Rev. D 107, 125010 (2023)
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 chann
Externí odkaz:
http://arxiv.org/abs/2303.13162
Autor:
Papadatos, Nikolaos, Moustos, Dimitris
Publikováno v:
J. Phys. A: Math. Theor. 57 245301 (2024)
We consider a two-level atom that follows a wordline of constant velocity, while interacting with a massless scalar field in a thermal state through: (i) an Unruh-DeWitt coupling, and (ii) a coupling that involves the time derivative of the field. We
Externí odkaz:
http://arxiv.org/abs/2303.10618
Autor:
Moustos, Dimitris
Publikováno v:
Phys. Lett. B 829, 137115 (2022)
We consider an Unruh-DeWitt detector modeled as a harmonic oscillator that is coupled to a massless quantum scalar field in the (2+1)-dimensional Minkowski spacetime. We treat the detector as an open quantum system and employ a quantum Langevin equat
Externí odkaz:
http://arxiv.org/abs/2201.08287
Autor:
Kollas, Nikolaos K., Moustos, Dimitris
Recently it has been demonstrated that it is possible to harvest quantum resources other than entanglement from a coherent scalar field. Employing time-dependent perturbation theory, we present a complete analysis of the conditions under which a spat
Externí odkaz:
http://arxiv.org/abs/2103.09165
Publikováno v:
Phys. Rev. D 102, 065020 (2020)
We study the effects of motion for an Unruh-DeWitt detector, modeled as a two-level system, on the amount of coherence extracted, when it interacts with a massless scalar coherent field in 1+1 Minkowski spacetime. We observe that compared to a detect
Externí odkaz:
http://arxiv.org/abs/2006.13917
Publikováno v:
JHEP 06 (2020) 059
We study the detailed balance temperatures recorded along all classes of stationary, uniformly accelerated worldlines in four-dimensional Minkowski spacetime, namely along (i) linear uniform acceleration, (ii) cusped, (iii) circular, (iv) catenary, a
Externí odkaz:
http://arxiv.org/abs/2004.08225
Publikováno v:
Phys. Rev. D 100, 025018 (2019)
We study the late-time asymptotic state of a stationary Unruh-DeWitt detector interacting with a field in a thermal state. We work in an open system framework, where the field plays the role of an environment for the detector. The long-time interacti
Externí odkaz:
http://arxiv.org/abs/1905.13542
Autor:
Moustos, Dimitris
Publikováno v:
Phys. Rev. D 98, 065006 (2018)
We treat an Unruh-DeWitt detector as an open quantum system and evaluate the response of a uniformly accelerated detector: (i) interacting locally with the derivatives of a massless scalar field and (ii) linearly coupled to an electromagnetic field.
Externí odkaz:
http://arxiv.org/abs/1806.10005