Results 11 to 20 of about 2,653 (209)

Quantum Geometry and Quantum Gravity [PDF]

open access: yesAIP Conference Proceedings, 2008
To appear in the AIP Conference Proceedings of the XVI International Fall Workshop on Geometry and Physics, Lisbon - Portugal, 5-8 September ...
J. Fernando Barbero G.   +2 more
openaire   +3 more sources

Invariants in Quantum Geometry [PDF]

open access: yesReports on Mathematical Physics, 2021
In quantum geometry, we consider a set of loops, a compact orientable surface and a solid compact spatial region, all inside $\mathbb{R} \times \mathbb{R}^3 \equiv \mathbb{R}^4$, which forms a triple. We want to define an ambient isotopic equivalence relation on such triples, so that we can obtain equivalence invariants.
openaire   +2 more sources

Geometry and the quantum: basics [PDF]

open access: yesJournal of High Energy Physics, 2014
33 pages, 2 ...
Chamseddine, Ali H.   +2 more
openaire   +3 more sources

Exploring Alternatives to the Hamiltonian Calculation of the Ashtekar-Olmedo-Singh Black Hole Solution

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In this article, we reexamine the derivation of the dynamical equations of the Ashtekar-Olmedo-Singh black hole model in order to determine whether it is possible to construct a Hamiltonian formalism where the parameters that regulate the introduction of
Alejandro García-Quismondo   +1 more
doaj   +1 more source

Universal suppression of superfluid weight by non-magnetic disorder in $s$-wave superconductors independent of quantum geometry and band dispersion

open access: yesSciPost Physics, 2022
Motivated by the experimental progress in controlling the properties of the energy bands in superconductors, significant theoretical efforts have been devoted to study the effect of the quantum geometry and the flatness of the dispersion on the ...
Alexander Lau, Sebastiano Peotta, Dmitry I. Pikulin, Enrico Rossi, Timo Hyart
doaj   +1 more source

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

Geometry and quantum noise [PDF]

open access: yesFortschritte der Physik, 2014
AbstractWe study the fine structure of long‐time quantum noise in correlation functions of AdS/CFT systems. Under standard assumptions of quantum chaos for the dynamics and the observables, we estimate the size of exponentially small oscillations and trace them back to geometrical features of the bulk system. The noise level is highly suppressed by the
Fernández Barbón, José L.   +1 more
openaire   +3 more sources

Bell Length as Mutual Information in Quantum Interference

open access: yesAxioms, 2014
The necessity of a rigorously operative formulation of quantum mechanics, functional to the exigencies of quantum computing, has raised the interest again in the nature of probability and the inference in quantum mechanics.
Ignazio Licata, Davide Fiscaletti
doaj   +1 more source

A Lorentzian quantum geometry [PDF]

open access: yesAdvances in Theoretical and Mathematical Physics, 2012
We propose a formulation of a Lorentzian quantum geometry based on the framework of causal fermion systems. After giving the general definition of causal fermion systems, we deduce space-time as a topological space with an underlying causal structure. Restricting attention to systems of spin dimension two, we derive the objects of our quantum geometry:
Finster, Felix, Grotz, Andreas
openaire   +4 more sources

High probability of transitions in the H-I spectrum and 3D-atomic orbitals geometry [PDF]

open access: yesINCAS Bulletin
In the framework of the quantum model for hydrogen atom, we use the wave functions provided by the solutions of the Schrödinger equation with Coulomb potential. Considering the radial and angular densities of the localization probability, we identify the
Diana R. RADNEF-CONSTANTIN   +6 more
doaj   +1 more source

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