Results 11 to 20 of about 234,151 (279)

Topological Stability of Kinetic $k$-Centers [PDF]

open access: yesTheoretical Computer Science, 2018
We study the $k$-center problem in a kinetic setting: given a set of continuously moving points $P$ in the plane, determine a set of $k$ (moving) disks that cover $P$ at every time step, such that the disks are as small as possible at any point in time ...
Meulemans, Wouter   +4 more
core   +7 more sources

Topological Classification and Stability of Fermi Surfaces [PDF]

open access: yesPhysical Review Letters, 2013
In the framework of the Cartan classification of Hamiltonians, a kind of topological classification of Fermi surfaces is established in terms of topological charges.
Wang, Z. D., Zhao, Y. X.
core   +8 more sources

Stability of Topological Black Holes [PDF]

open access: yesPhysical Review D, 2007
We explore the classical stability of topological black holes in d-dimensional anti-de Sitter spacetime, where the horizon is an Einstein manifold of negative curvature.
Danny Birmingham   +7 more
core   +4 more sources

Stabilizing topological superfluidity of lattice fermions [PDF]

open access: yesPhysical Review A, 2021
Attractive interaction between spinless fermions in a two-dimensional lattice drives the formation of a topological superfluid. But the topological phase is dynamically unstable towards phase separation when the system has a high density of states and large interaction strength.
Junhua Zhang   +2 more
openaire   +2 more sources

Topological bulk solitons in a nonlinear photonic Chern insulator

open access: yesCommunications Physics, 2022
The combination of nonlinearity and topology has recently attracted significant attention in the field of optical physics. This work considers a photonic Chern insulator in the nonlinear regime and explores the properties of topological bulk solitons ...
Rujiang Li   +8 more
doaj   +1 more source

Embedded Vortices [PDF]

open access: yes, 1995
We present a discussion of embedded vortices in general Yang-Mills theories. The origin of a family structure of solutions is shown to be group theoretic in nature and a procedure for its determination is developed.
Anne-Christine Davis   +8 more
core   +3 more sources

Stability of topological wall defects on spheres with n-atic order

open access: yesPhysical Review Research, 2020
Topological point defects on orientationally ordered spheres and on deformable fluid vesicles have been investigated, partly motivated by their potential applications in creating superatoms with directional bonds through functionalization of the “bald ...
C. Saichand   +3 more
doaj   +1 more source

Stability of bicalicene isomers: A topological study [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
Bicalicene is the conjugated hydrocarbon obtained by joining two calicene fragments. This can be done in two different ways, thus resulting in two bicalicene isomers (tentatively referred to as cis and trans).
Gutman Ivan
doaj   +1 more source

Topological Susceptibility and Zero Mode Size in Lattice QCD [PDF]

open access: yes, 1998
We use the overlap formalism to define a topological index on the lattice. We study the spectral flow of the hermitian Wilson-Dirac operator and identify zero crossings with topological objects.
Alles   +10 more
core   +3 more sources

Driven-dissipative topological phases in parametric resonator arrays [PDF]

open access: yesQuantum, 2023
We study the phenomena of topological amplification in arrays of parametric oscillators. We find two phases of topological amplification, both with directional transport and exponential gain with the number of sites, and one of them featuring squeezing ...
Álvaro Gómez-León   +3 more
doaj   +1 more source

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