Results 51 to 60 of about 352,298 (333)

Dynamical confinement in bosonized QCD2

, 1992
In the bosonized version of two dimensional theories non trivial boundary conditions (topology) play a crucial role. They are inevitable if one wants to describe non singlet states. In abelian bosonization, color is the charge of a topological current in
A. Ferrando, A. Ferrando, A. Ferrando, A. Patrascioiu, C. G. Callan, D. B. Kaplan, D. J. Gross, G. 't Hooft, G. 't Hooft, G. Bhattacharya, G. Segal, I. B. Frenkel, I. Zahed, J. Ellis, M. B. Einhorn, M. B. Halpern, M. B. Halpern, M. Partovi, P. Ginsparg, P. Mitra, R. C. Brower, R. C. Brower, S. Coleman, S. Coleman, S. Coleman, S. Coleman, S. Coleman, S. Huang, S. Mandelstam, T. P. Cheng, V. Baluni, V. Vento   +31 more
core   +2 more sources

Topology of Event Horizons and Topological Censorship [PDF]

, 1994
We prove that, under certain conditions, the topology of the event horizon of a four dimensional asymptotically flat black hole spacetime must be a 2-sphere. No stationarity assumption is made.
Browdy S, Chrusciel P T, Galloway G, Gannon D, Geroch R, Hawking S W, Hawking S W, Hempel J, Horowitz G T, Kauffman L H, Lemos J P S, Milnor J, Shankar Venkataramani, Ted Jacobson, Wald R M   +14 more
core   +2 more sources

Lattice topological charge and boundary conditions

Physics Letters B, 1989
Abstract We discuss some effects of the boundary conditions on the topological properties of lattice gauge theories.
DI GIACOMO, ADRIANO, PAFFUTI, GIAMPIERO, M. POLIKARPOV   +2 more
openaire   +2 more sources

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

Case 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, Yemao Wang, Liyao Xie, Yulong Zhao, Barkat Ali Bhayo   +4 more
doaj   +1 more source

Multipartite entanglement and topology in holography

Journal 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

Confinement and Quantization Effects in Mesoscopic Superconducting Structures

, 1998
We have studied quantization and confinement effects in nanostructured superconductors. Three different types of nanostructured samples were investigated: individual structures (line, loop, dot), 1-dimensional (1D) clusters of loops and 2D clusters of ...
Baert, M., Bruyndoncx, V., Bruynseraede, Y., Moshchalkov, V. V., Puig, T., Rosseel, E., Strunk, C., Van Bael, M. J., Van Look, L.   +8 more
core   +2 more sources

Equivalent topologies on the contracting boundary

Glasnik Matematicki, 2023
The contracting boundary of a proper geodesic metric space generalizes the Gromov boundary of a hyperbolic space. It consists of contracting geodesics up to bounded Hausdorff distances. Another generalization of the Gromov boundary is the \(\kappa\)–Morse boundary with a sublinear function \(\kappa\).
openaire   +3 more sources

TOPOLOGY OPTIMIZATION METHOD BASED ON SIMP-MMC FOR STRUCTURE SIZE PRECISE CONTROL

Jixie qiangdu, 2022
With the development of structural topology optimization methods, some scholars had proposed strategies to integrate existing topology optimization methods to improve the manufacturability of topology optimization result.
ZHANG JunFeng, LIAO JingYu, LIU EnHai
doaj  

Boundary conductance in macroscopic bismuth crystals

Nature 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, Felix Spathelf, Benoît Fauqué, Yuki Fuseya, Kamran Behnia   +4 more
doaj   +1 more source

Time-reversal-invariant $C_2$-symmetric higher-order topological superconductors

, 2020
We propose a minimal lattice model for two-dimensional class DIII superconductors with $C_2$-protected higher-order topology. While this class of superconductors cannot be topologically characterized by symmetry eigenvalues at high symmetry momenta, we ...
Sarma, Sankar Das, Vu, DinhDuy, Zhang, Rui-Xing   +2 more
core   +1 more source