Results 51 to 60 of about 347,783 (331)

Multipartite entanglement and topology in holography

open access: yesJournal of High Energy Physics, 2021
Starting from the entanglement wedge of a multipartite mixed state we describe a purification procedure which involves the gluing of several copies. The resulting geometry has non-trivial topology and a single oriented boundary for each original boundary
Jonathan Harper
doaj   +1 more source

Topology of the future chronological boundary: universality for spacelike boundaries [PDF]

open access: yesClassical and Quantum Gravity, 2000
56 pages, AMS-TeX; 1 page of figure captions (TeX); 22 figures, EPS format; to be published in Quantum Class. Grav.; principal reason for replacement is to have the figures included (also, introduction is expanded slightly, and one example is simplified)
openaire   +3 more sources

Casimir Effect and Global Theory of Boundary Conditions

open access: yes, 2006
The consistency of quantum field theories defined on domains with external borders imposes very restrictive constraints on the type of boundary conditions that the fields can satisfy.
Asorey, M.   +2 more
core   +2 more sources

The topology of boundaries

open access: yesArtificial Intelligence, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Ishibashi states, topological orders with boundaries and topological entanglement entropy. Part II. Cutting through the boundary [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract We compute the entanglement entropy in a 2+1 dimensional topological order in the presence of gapped boundaries. Specifically, we consider entanglement cuts that cut through the boundaries. We argue that based on general considerations of the bulk- boundary correspondence, the “twisted characters” feature in the Renyi ...
Ce Shen, Jiaqi Lou, Ling-Yan Hung
openaire   +4 more sources

Single-exterior black holes and the AdS-CFT conjecture [PDF]

open access: yes, 1998
In the context of the conjectured AdS-CFT correspondence of string theory, we consider a class of asymptotically Anti-de Sitter black holes whose conformal boundary consists of a single connected component, identical to the conformal boundary of Anti-de ...
A. Chamblin   +40 more
core   +2 more sources

Research in material distribution based on topology optimization in variable section segmented thermoelectric generators

open access: yesCase Studies in Thermal Engineering
This paper investigates the material distribution of non-uniform cross-sectional segmented thermoelectric generators (STEG). Based on topology optimization methods, the material is reasonably allocated to enhance the output power and conversion ...
Qiuchen Fu   +4 more
doaj   +1 more source

Boundary conductance in macroscopic bismuth crystals

open access: yesNature Communications, 2022
The topology of the surface states of a bismuth crystal remains an ongoing debate. Here, the authors observe surface electric conductivity with a magnetic field parallel to the two-dimensional boundary between the three-dimensional bismuth crystal and ...
Woun Kang   +4 more
doaj   +1 more source

Invertible Dirac operators and handle attachments on manifolds with boundary

open access: yes, 2014
For spin manifolds with boundary we consider Riemannian metrics which are product near the boundary and are such that the corresponding Dirac operator is invertible when half-infinite cylinders are attached at the boundary.
Adams R. A.   +10 more
core   +1 more source

Low-frequency discrete breathers in long-range systems without on-site potential [PDF]

open access: yes, 2017
We propose a new mechanism of long-range coupling to excite low-frequency discrete breathers without the on-site potential. This mechanism is universal in long-range systems irrespective of the spatial boundary conditions, of topology of the inner degree
Doi, Yusuke, Yamaguchi, Yoshiyuki Y.
core   +2 more sources

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