Results 11 to 20 of about 4,977,477 (349)

Hilbert space of wormholes [PDF]

open access: yesPhysical Review D, 1993
Wormhole boundary conditions for the Wheeler--DeWitt equation can be derived from the path integral formulation. It is proposed that the wormhole wave function must be square integrable in the maximal analytic extension of minisuperspace. Quantum wormholes can be invested with a Hilbert space structure, the inner product being naturally induced by the ...
A. Galindo   +25 more
openaire   +12 more sources

Open superstring field theory on the restricted Hilbert space [PDF]

open access: yes, 2016
A bstractIt appears that the formulation of an action for the Ramond sector of open superstring field theory requires to either restrict the Hilbert space for the Ramond sector or to introduce auxiliary fields with picture −3/2.
Sebastian J. H. Konopka, I. Sachs
semanticscholar   +6 more sources

Ergodicity probes: using time-fluctuations to measure the Hilbert space dimension [PDF]

open access: yesQuantum, 2019
Quantum devices, such as quantum simulators, quantum annealers, and quantum computers, may be exploited to solve problems beyond what is tractable with classical computers. This may be achieved as the Hilbert space available to perform such `calculations'
Charlie Nation, Diego Porras
doaj   +5 more sources

Introduction of Frame in Tensor Product of $n$-Hilbert Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
We study the concept of frame in tensor product of  $n$-Hilbert spaces as tensor product of  $n$-Hilbert spaces is again an  $n$-Hilbert space. We generalize some of the known results about bases to frames in this new Hilbert space.
Prasenjit Ghosh, Tapas Samanta
doaj   +1 more source

Hilbert Space Fragmentation and Commutant Algebras [PDF]

open access: yesPhysical Review X, 2021
We study the phenomenon of Hilbert space fragmentation in isolated Hamiltonian and Floquet quantum systems using the language of commutant algebras, the algebra of all operators that commute with each term of the Hamiltonian or each gate of the circuit ...
Sanjay Moudgalya, O. Motrunich
semanticscholar   +1 more source

Global anomalies on the Hilbert space [PDF]

open access: yesJournal of High Energy Physics, 2021
We show that certain global anomalies can be detected in an elementary fashion by analyzing the way the symmetry algebra is realized on the torus Hilbert space of the anomalous theory.
D. Delmastro, D. Gaiotto, J. Gomis
semanticscholar   +1 more source

Generalized Cauchy–Schwarz Inequalities and A-Numerical Radius Applications

open access: yesAxioms, 2023
The purpose of this research paper is to introduce new Cauchy–Schwarz inequalities that are valid in semi-Hilbert spaces, which are generalizations of Hilbert spaces.
Najla Altwaijry   +2 more
doaj   +1 more source

Rigged Hilbert spaces and contractive families of Hilbert spaces [PDF]

open access: yesMonatshefte für Mathematik, 2010
15 pages.
BELLOMONTE, Giorgia, TRAPANI, Camillo
openaire   +4 more sources

On the Hilbert Space in Quantum Gravity

open access: yesUniverse, 2022
This article deals with the fractional problem of Sturm–Liouville and the Hilbert space associated with the solutions of this differential equation.
Ednardo Paulo Spaniol   +2 more
doaj   +1 more source

Copulas in Hilbert spaces [PDF]

open access: yesStochastics, 2016
In this article, the concept of copulas is generalised to infinite dimensional Hilbert spaces. We show one direction of Sklar's theorem and explain that the other direction fails in infinite dimensional Hilbert spaces. We derive a necessary and sufficient condition which allows to state this direction of Sklar's theorem in Hilbert spaces.
Hausenblas, Erika, Riedle, Markus
openaire   +6 more sources

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