Zobrazeno 1 - 10
of 109
pro vyhledávání: '"CHRISTODOULOU, Marios"'
Experimental proposals for testing quantum gravity-induced entanglement of masses (QGEM) typically involve two interacting masses which are each in a spatial superposition state. Here, we propose instead a QGEM experiment with two particles which are
Externí odkaz:
http://arxiv.org/abs/2403.02062
Publikováno v:
Phys. Rev. D 110, 056046 (2024)
Protocols for observing gravity induced entanglement typically comprise the interaction of two particles prepared either in a superposition of two discrete paths, or in a continuously delocalized (harmonic oscillator) state of motion. An important op
Externí odkaz:
http://arxiv.org/abs/2309.16312
In spite or the large astronomical evidence for its existence, the nature of dark matter remains enigmatic. Particles that interact only, or almost only, gravitationally, in particular with masses around the Planck mass -- the fundamental scale in qu
Externí odkaz:
http://arxiv.org/abs/2309.08238
Locality is a central notion in modern physics, but different disciplines understand it in different ways. Quantum field theory focusses on relativistic locality, enforced by microcausality, while quantum information theory focuses on subsystem local
Externí odkaz:
http://arxiv.org/abs/2305.05645
Publikováno v:
Physical Review Letters, Vol. 131, No. 17, p. 171402 (23 October, 2023)
The quest for complete observables in general relativity has been a longstanding open problem. We employ methods from descriptive set theory to show that no complete observable on rich enough collections of spacetimes is Borel definable. In fact, we
Externí odkaz:
http://arxiv.org/abs/2305.04818
We show how the fixed-spin asymptotics of the EPRL model can be used to perform the spin-sum for spin foam amplitudes defined on fixed two-complexes without interior faces and contracted with coherent spin-network states peaked on a discrete simplici
Externí odkaz:
http://arxiv.org/abs/2302.12622
The field of indefinite causal order has seen significant advancements in recent years. While classically the causal order of two timelike separated events A and B is fixed - either A before B or B before A - this is no longer true in quantum theory.
Externí odkaz:
http://arxiv.org/abs/2211.15685
We discuss the physical interpretation of the gravity mediated entanglement effect. We show how to read it in terms of quantum reference systems. We pinpoint the single gravitational degree of freedom mediating the entanglement. We clarify why the di
Externí odkaz:
http://arxiv.org/abs/2207.03138
Autor:
Polino, Emanuele, Polacchi, Beatrice, Poderini, Davide, Agresti, Iris, Carvacho, Gonzalo, Sciarrino, Fabio, Di Biagio, Andrea, Rovelli, Carlo, Christodoulou, Marios
Detecting gravity mediated entanglement can provide evidence that the gravitational field obeys quantum mechanics. We report the result of a simulation of the phenomenon using a photonic platform. The simulation tests the idea of probing the quantum
Externí odkaz:
http://arxiv.org/abs/2207.01680
Autor:
Christodoulou, Marios, Di Biagio, Andrea, Aspelmeyer, Markus, Brukner, Časlav, Rovelli, Carlo, Howl, Richard
The current interest in laboratory detection of entanglement mediated by gravity was sparked by an information--theoretic argument: entanglement mediated by a local field certifies that the field is not classical. Previous derivations of the effect m
Externí odkaz:
http://arxiv.org/abs/2202.03368