Results 1 to 10 of about 2,111,128 (267)
Gravity in the quantum lab [PDF]
Advances in Physics: X, 2017 25 pages, 2 figures, based on an invited review for Advances in Physics: X, I. Fuentes previously published as I. Fuentes-Guridi and I.
Richard Howl +3 more
openaire +6 more sources
Arrow of Causality and Quantum Gravity. [PDF]
Physical Review Letters, 2019 Causality in quantum field theory is defined by the vanishing of field commutators for spacelike separations. However, this does not imply a direction for causal effects.
J. Donoghue, G. Menezes
semanticscholar +1 more source
Quantum Gravity on a Quantum Computer? [PDF]
Foundations of Physics, 2013 EPR-type measurements on spatially separated entangled spin qubits allow one, in principle, to detect curvature. Also the entanglement of the vacuum state is affected by curvature. Here, we ask if the curvature of spacetime can be expressed entirely in terms of the spatial entanglement structure of the vacuum.
Achim Kempf, Achim Kempf
openaire +5 more sources
Non-Gaussianity as a Signature of a Quantum Theory of Gravity [PDF]
, 2020 A new signature of quantum gravity, connected to a concept used in the area of quantum computation, may enable a table-top test of quantum gravity using just a single quantum system and without assumptions on locality.
R. Howl +5 more
semanticscholar +1 more source
Effective entropy of quantum fields coupled with gravity [PDF]
Journal of High Energy Physics, 2020 Entanglement entropy, or von Neumann entropy, quantifies the amount of uncertainty of a quantum state. For quantum fields in curved space, entanglement entropy of the quantum field theory degrees of freedom is well-defined for a fixed background geometry.
Xi Dong +3 more
semanticscholar +1 more source
From Quantum Codes to Gravity: A Journey of Gravitizing Quantum Mechanics [PDF]
arXiv, 2021 In this note, I review a recent approach to quantum gravity that "gravitizes" quantum mechanics by emerging geometry and gravity from complex quantum states. Drawing further insights from tensor network toy models in AdS/CFT, I propose that approximate quantum error correction codes, when re-adapted into the aforementioned framework, also has promise ...
arxiv
An Asymptotically Safe Guide to Quantum Gravity and Matter [PDF]
Frontiers in Astronomy and Space Sciences, 2018 Asymptotic safety generalizes asymptotic freedom and could contribute to understanding physics beyond the Standard Model. It is a candidate scenario to provide an ultraviolet extension for the effective quantum field theory of gravity through an ...
A. Eichhorn
semanticscholar +1 more source
Quantum signature of gravity in optomechanical systems with conditional measurement [PDF]
arXiv, 2023 We investigate the quantum signature of gravity in optomechanical systems under quantum control. We analyze the gravity-induced entanglement and squeezing in mechanical mirrors in a steady state. The behaviors and the conditions for generating the gravity-induced entanglement and squeezing are identified in the Fourier modes of the mechanical mirrors ...
arxiv
Quantum gravity phenomenology at the dawn of the multi-messenger era—A review [PDF]
Progress in Particle and Nuclear Physics, 2021 A. Addazi +159 more
semanticscholar +1 more source