Results 1 to 10 of about 4,879,805 (235)

Convergence of closed subsets in a topological space [PDF]

open access: bronze, 1965
In some recent work, the author attempted to place a topology, or at least a Borel structure (see [4, ? ?1-3]) on the set of closed left ideals in a separable Banach algebra. Our approach was to introduce a notion of convergence for nets in the set e0(X)
Edward G. Effros
openalex   +2 more sources

Topological Space-Time Crystal. [PDF]

open access: yesPhysical Review Letters, 2022
We introduce a new class of out-of-equilibrium noninteracting topological phases: the topological space-time crystals. These are time-dependent quantum systems that do not have discrete spatial translation symmetries but instead are invariant under ...
Yang Peng
semanticscholar   +1 more source

Topological natures of the Gauss-Bonnet black hole in AdS space [PDF]

open access: yesPhysical Review D, 2022
In the recent proposal [Phys. Rev. Lett. 129, 191101 (2022)], the black holes were viewed as topological thermodynamic defects by using the generalized off-shell free energy.
Cong-xin Liu, Jin Wang
semanticscholar   +1 more source

Topological Photonic Crystals: Physics, Designs, and Applications [PDF]

open access: yesLaser & Photonics reviews, 2022
Recent research in topological photonics has not only proposed and realized novel topological phenomena such as one‐way broadband propagation and robust transport of light, but also designed and fabricated photonic devices with high‐performance indexes ...
Guo-Jing Tang   +5 more
semanticscholar   +1 more source

Observation of Protected Photonic Edge States Induced by Real-Space Topological Lattice Defects. [PDF]

open access: yesPhysical Review Letters, 2020
Topological defects (TDs) in crystal lattices are elementary lattice imperfections that cannot be removed by local perturbations, due to their real-space topology.
Qiang Wang   +3 more
semanticscholar   +1 more source

Nonlinearity induced topological physics in momentum space and real space [PDF]

open access: yes, 2020
Nonlinearity induced topological properties in nonlinear lattice systems are studied in both momentum space and real space. Experimentally realizable through the Kerr effect on photonic waveguide systems, our working model depicts onsite nonlinearity ...
Thomas Tuloup   +3 more
semanticscholar   +1 more source

A New Approach Of Neutrosophic Topological space

open access: yesInternational journal of neutrosophic science, 2020
In this paper, a new approach of neutrosophic topological space (NA-NTS) is going to be introduced which is more general than neutrosophic topological space.
Riad K. Al-Hamido
semanticscholar   +1 more source

Non-Hermitian Topological Invariants in Real Space. [PDF]

open access: yesPhysical Review Letters, 2019
The topology of non-Hermitian systems is drastically shaped by the non-Hermitian skin effect, which leads to the generalized bulk-boundary correspondence and non-Bloch band theory.
F. Song, Shunyu Yao, Zhong Wang
semanticscholar   +1 more source

Refined symmetry indicators for topological superconductors in all space groups [PDF]

open access: yesScience Advances, 2019
A general framework is developed to aid the diagnosis of nontrivial topology in superconductors using their symmetry properties. Topological superconductors are exotic phases of matter featuring robust surface states that could be leveraged for ...
Seishiro Ono, H. Po, Haruki Watanabe
semanticscholar   +1 more source

Topological flat bands in frustrated kagome lattice CoSn [PDF]

open access: yesNature Communications, 2020
Electronic flat bands in momentum space, arising from strong localization of electrons in real space, are an ideal stage to realize strongly-correlated phenomena.
Mingu Kang   +10 more
semanticscholar   +1 more source

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