Results 71 to 80 of about 352,298 (333)

The topology of boundaries

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

Boundary localized symmetry breaking and topological defects [PDF]

open access: yesPhysical Review D, 2006
We discuss the structure of topological defects in the context of extra dimensions where the symmetry breaking terms are localized. These defects develop structure in the extra dimension which differs from the case where symmetry breaking is not localized. This new structure can lead to corrections to the mass scale of the defects which is not captured
Holman, R., Martin, Matthew R.
openaire   +2 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

An inverse problem for quantum trees with observations at interior vertices

open access: yesNetworks and Heterogeneous Media, 2021
In this paper we consider a non-standard dynamical inverse problem for the wave equation on a metric tree graph. We assume that positive masses may be attached to the internal vertices of the graph.
Sergei Avdonin, Julian Edward
doaj   +1 more source

Extrinsic topology of Floquet anomalous boundary states in quantum walks [PDF]

open access: green, 2022
Takumi Bessho   +3 more
openalex   +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

Evolutionary dynamics of the chloroplast genome in Daphne (Thymelaeaceae): comparative analysis with related genera and insights into phylogenetics

open access: yesFEBS Open Bio, EarlyView.
Comparative analysis of chloroplast genomes from 14 genera of Thymelaeaceae revealed variation in gene content, ranging from 128 to 142 genes, primarily influenced by IR expansion/contraction events and pseudogenization of ndhF, ndhI, and ndhG. Two large inversions were detected within the large single‐copy region, including a synapomorphic inversion ...
Abdullah   +8 more
wiley   +1 more source

Chiral Dirac superconductors: Second-order and boundary-obstructed topology

open access: yesPhysical Review Research, 2020
We analyze the topological properties of a chiral p+ip superconductor for a two-dimensional metal and semimetal with four Dirac points. Such a system has been proposed to realize second-order topological superconductivity and host corner Majorana modes ...
Apoorv Tiwari, Ammar Jahin, Yuxuan Wang
doaj   +1 more source

Tight-binding lattices with an oscillating imaginary gauge field

open access: yes, 2016
We consider non-Hermitian dynamics of a quantum particle hopping on a one-dimensional tight-binding lattice made of $N$ sites with asymmetric hopping rates induced by a time-periodic oscillating imaginary gauge field. A deeply different behavior is found
Longhi, Stefano
core   +1 more source

Quantum Topological Boundary States in Quasi‐Crystals

open access: yesAdvanced Materials, 2019
AbstractTopological phases play a novel and fundamental role in matter and display extraordinary robustness to smooth changes in material parameters or disorder. A crossover between topological material and quantum information may lead to inherent fault‐tolerant quantum simulations and quantum computing.
Yao Wang   +6 more
openaire   +3 more sources

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