Articles with "hilbert space" as a keyword



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Localization of effective actions in open superstring field theory: small Hilbert space

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Published in 2019 at "Journal of High Energy Physics"

DOI: 10.1007/jhep06(2019)101

Abstract: A bstractWe consider the algebraic effective couplings for open superstring massless modes in the framework of the A∞ theory in the small Hilbert space. Focussing on quartic couplings, we reduce the effective action of the… read more here.

Keywords: small hilbert; open superstring; theory small; hilbert space ... See more keywords
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Interfaces and the extended Hilbert space of Chern-Simons theory

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Published in 2020 at "Journal of High Energy Physics"

DOI: 10.1007/jhep07(2020)009

Abstract: The low energy effective field theories of (2 + 1) dimensional topological phases of matter provide powerful avenues for investigating entanglement in their ground states. In [1] the entanglement between distinct Abelian topological phases was… read more here.

Keywords: chern simons; theory; extended hilbert; simons theory ... See more keywords
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Closed string deformations in open string field theory. Part II. Superstring

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep09(2021)048

Abstract: Abstract This is the second paper of a series of three. We construct effective open-closed superstring couplings by classically integrating out massive fields from open superstring field theories coupled to an elementary gauge invariant tadpole… read more here.

Keywords: field; small hilbert; open closed; closed string ... See more keywords
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Locality from the Spectrum

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Published in 2019 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-019-03376-w

Abstract: Essential to the description of a quantum system are its local degrees of freedom, which enable the interpretation of subsystems and dynamics in the Hilbert space. While a choice of local tensor factorization of the… read more here.

Keywords: local degrees; hilbert space; spectrum; degrees freedom ... See more keywords
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To the Geometrical Theory of Differential Realization of Dynamic Processes in a Hilbert Space*

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Published in 2017 at "Cybernetics and Systems Analysis"

DOI: 10.1007/s10559-017-9957-z

Abstract: In the context of the qualitative theory of realization of infinite-dimensional dynamic systems, the authors demonstrate some results related to investigation of the geometrical properties of families of continuous controlled dynamic processes (“input–output” mappings) in… read more here.

Keywords: theory; hilbert space; realization; dynamic processes ... See more keywords
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Analogs of the Lebesgue Measure and Diffusion in a Hilbert Space

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Published in 2019 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-019-04224-2

Abstract: We study shift-invariant measures on a real separable Hilbert space E , which are also invariant with respect to orthogonal transforms. In this article a finitely additive analogue of the Lebesgue measure is constructed. It… read more here.

Keywords: hilbert space; shift invariant; lebesgue measure; space ... See more keywords
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Generating Two-Qubit Werner States Using Superpositions of Dimer and Random States in Hilbert Space

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Published in 2019 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-019-04348-5

Abstract: Werner states are unitarily invariant states in the d dimensional Hilbert space. These states are entangled (EPR correlated) but still admits a hidden variable model. In this paper, we superpose a 2 N qubit Bell… read more here.

Keywords: state; hilbert space; werner states; two qubit ... See more keywords
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The Lipschitz Property of the Metric Projection in the Hilbert Space

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Published in 2020 at "Journal of Mathematical Sciences"

DOI: 10.1007/s10958-020-05022-6

Abstract: In this survey, we consider the metric projection operator from the real Hilbert space onto a closed subset. We discuss the following question: When is this operator Lipschitz continuous? First, we consider the class of… read more here.

Keywords: hilbert space; metric projection; lipschitz continuous; projection ... See more keywords
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Hardy type inequaltiy for reproducing Kernel Hilbert space operators and related problems

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Published in 2017 at "Positivity"

DOI: 10.1007/s11117-017-0489-6

Abstract: A Hardy type inequality for Reproducing Kernel Hilbert Space operators is proved. It is well known (see Halmos in A Hilbert space problem book. Springer, Berlin, 1982) the following power inequality for numerical radius of… read more here.

Keywords: left right; reproducing kernel; space; hilbert space ... See more keywords
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Some Results on (A; (m, n))-Isosymmetric Operators on a Hilbert Space

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Published in 2021 at "Bulletin of the Iranian Mathematical Society"

DOI: 10.1007/s41980-021-00602-x

Abstract: In this paper, we introduce the class of (A; (m, n))-isosymmetric operators and we study some of their properties, for a positive semi-definite operator A and $$ m,n\in {\mathbb {N}}$$ , which extend, by changing the initial… read more here.

Keywords: operator; isosymmetric operators; operators hilbert; hilbert space ... See more keywords
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Soft computing technique for a system of fuzzy Volterra integro-differential equations in a Hilbert space

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Published in 2020 at "Applied Numerical Mathematics"

DOI: 10.1016/j.apnum.2019.11.019

Abstract: Abstract In this article, we implement a relatively new computational technique, a reproducing kernel Hilbert space method, for solving a system of fuzzy Volterra integro-differential equations in the Hilbert space ⊕ j = 1 n… read more here.

Keywords: space; integro differential; system fuzzy; hilbert space ... See more keywords