Results 11 to 20 of about 5,037,194 (368)

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

Many-body Hilbert space scarring on a superconducting processor [PDF]

open access: yesNature Physics, 2022
Many-body quantum systems that escape thermalization are promising candidates for quantum information applications. A weak-ergodicity-breaking mechanism—quantum scarring—has now been observed with superconducting qubits in unconstrained models.
P. Zhang   +23 more
semanticscholar   +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

W-Hilbert: A W-shaped Hilbert curve and coding method for multiscale geospatial data index

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
Space-filling curves (SFCs) are commonly used in discrete global grid systems (DGGSs) and applied to efficient indices and queries of massive geospatial data.
Yi Lei   +5 more
doaj   +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

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

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

Clock-dependent spacetime

open access: yesJournal of High Energy Physics, 2021
Einstein’s theory of general relativity is based on the premise that the physical laws take the same form in all coordinate systems. However, it still presumes a preferred decomposition of the total kinematic Hilbert space into local kinematic Hilbert ...
Sung-Sik Lee
doaj   +1 more source

Topological transitivity of translation operators in a non-separable Hilbert space

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
We consider a Hilbert space of entire analytic functions on a non-separable Hilbert space, associated with a non-separable Fock space. We show that under some conditions operators, like the differentiation operators and translation operators, are ...
Z.H. Novosad
doaj   +1 more source

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