Results 41 to 50 of about 32,973 (309)

QUANTUM, GRAVITY AND GEOMETRY [PDF]

open access: yesInternational Journal of Modern Physics A, 2000
Recently, 1–3 it is shown that, the quantum effects of matter are well described by the conformal degree of freedom of the space–time metric. On the other hand, it is a well-known fact that according to Einstein's gravity theory, gravity and geometry are interconnected.
openaire   +3 more sources

Remarks on fermions in a dipole magnetic field

open access: yesJournal of High Energy Physics, 2021
This work is a continuation of our recent study of non-relativistic charged particles, confined to a sphere enclosing a magnetic dipole at its center [1]. In this sequel, we extend our computations in two significant ways.
Jeff Murugan   +2 more
doaj   +1 more source

Beyond the Standard Model with Six-Dimensional Spinors

open access: yesParticles, 2023
Six-dimensional spinors with Spin(3,3) symmetry are utilized to efficiently encode three generations of matter. E8(−24) is shown to contain physically relevant subgroups with representations for GUT groups, spacetime symmetries, three generations of the ...
David Chester   +2 more
doaj   +1 more source

Quantum W_3 Gravity

open access: yes, 1991
14 pages. Contribution to the proceedings of the Trieste Summer School on High Energy Physics and Cosmology, July-Aug ...
Schoutens, K.   +2 more
openaire   +4 more sources

Quantum Gravity on a Quantum Computer? [PDF]

open access: yesFoundations 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.
openaire   +5 more sources

Dynamical Properties of the Mukhanov-Sasaki Hamiltonian in the Context of Adiabatic Vacua and the Lewis-Riesenfeld Invariant

open access: yesUniverse, 2019
We use the method of the Lewis-Riesenfeld invariant to analyze the dynamical properties of the Mukhanov-Sasaki Hamiltonian and, following this approach, investigate whether we can obtain possible candidates for initial states in the context of inflation ...
Max Joseph Fahn   +2 more
doaj   +1 more source

No presentism in quantum gravity [PDF]

open access: yes, 2010
This essay offers a reaction to the recent resurgence of presentism in the philosophy of time. What is of particular interest in this renaissance is that a number of recent arguments supporting presentism are crafted in an untypically naturalistic vein ...
Christian Wüthrich, Wuthrich, Christian
core   +1 more source

Rindler quantum gravity [PDF]

open access: yesClassical and Quantum Gravity, 2012
29 pages, 9 figures, PDF ...
Czech, Bartlomiej   +3 more
openaire   +2 more sources

Spread complexity and topological transitions in the Kitaev chain

open access: yesJournal of High Energy Physics, 2023
A number of recent works have argued that quantum complexity, a well-known concept in computer science that has re-emerged recently in the context of the physics of black holes, may be used as an efficient probe of novel phenomena such as quantum chaos ...
Pawel Caputa   +5 more
doaj   +1 more source

Chiral Loop Quantum Supergravity and Black Hole Entropy

open access: yesUniverse, 2023
Recent work has shown that local supersymmetry on a spacetime boundary in N-extended AdS supergravity in chiral variables implies coupling to a boundary OSp(N|2)C super Chern–Simons theory.
Konstantin Eder, Hanno Sahlmann
doaj   +1 more source

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