Factorization of the Hilbert space of eternal black holes in general relativity
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DOI: 10.1007/jhep01(2025)046
Abstract: We generalize recent results in two-dimensional Jackiw-Teitelboim gravity to study factorization of the Hilbert space of eternal black holes in quantum gravity with a negative cosmological constant in any dimension. We approach the problem by… read more here.
Keywords: factorization hilbert; space; hilbert space; eternal black ... See more keywords
Notes on the factorisation of the Hilbert space for two-sided black holes in higher dimensions
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DOI: 10.1007/jhep02(2025)060
Abstract: In this paper, we investigate the Hilbert space factorisation problem of two-sided black holes in high dimensions. We demonstrate that the Hilbert space of two-sided black holes can be factorized into the tensor product of… read more here.
Keywords: sided black; two sided; hilbert space; space two ... See more keywords
The gravitational path integral from an observer’s point of view
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DOI: 10.1007/jhep05(2025)059
Abstract: One of the fundamental problems in quantum gravity is to describe the experience of a gravitating observer in generic spacetimes. In this paper, we develop a framework for describing non-perturbative physics relative to an observer… read more here.
Keywords: hilbert space; black hole; physics; gravitational path ... See more keywords
Localization of effective actions in open superstring field theory: small Hilbert space
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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
Interfaces and the extended Hilbert space of Chern-Simons theory
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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
Closed string deformations in open string field theory. Part II. Superstring
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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
Hilbert space of finite N multi-matrix models
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DOI: 10.1007/jhep11(2025)145
Abstract: We study the Hilbert space structure of gauge-invariant operators emergent in large-N multi-matrix quantum mechanics. Building on the framework of [1], we identify a class of light single-trace operators that behave like free creation operators… read more here.
Keywords: hilbert space; space finite; multi matrix;
Locality from the Spectrum
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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
To the Geometrical Theory of Differential Realization of Dynamic Processes in a Hilbert Space*
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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
Analogs of the Lebesgue Measure and Diffusion in a Hilbert Space
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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
Generating Two-Qubit Werner States Using Superpositions of Dimer and Random States in Hilbert Space
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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