Results 41 to 50 of about 156,262 (267)

Breaking the Exponential: Decoherence‐Driven Power‐Law Spontaneous Emission in Waveguide Quantum Electrodynamics

Laser &Photonics Reviews, EarlyView.
Introducing dynamical dephasing into the photon modes of a waveguide causes spontaneous emission to switch from conventional exponential decay to a robust power‐law behavior visible at short times. The power law arises from photon diffusion in a dynamically disordered environment, uncovering a previously unexplored, decoherence‐induced pathway to ...
Stefano Longhi
wiley   +1 more source

The topological structure of supergravity: an application to supersymmetric localization

Journal of High Energy Physics, 2018
The BRST algebra of supergravity is characterized by two different bilinears of the commuting supersymmetry ghosts: a vector γ μ and a scalar ϕ, the latter valued in the Yang-Mills Lie algebra. We observe that under BRST transformations γ and ϕ transform
Camillo Imbimbo, Dario Rosa
doaj   +1 more source

Birman-Wenzl-Murakami Algebra and the Topological Basis

, 2011
In this paper, we use entangled states to construct 9x9-matrix representations of Temperley-Lieb algebra (TLA), then a family of 9x9-matrix representations of Birman-Wenzl-Murakami algebra (BWMA) have been presented.
Cheng-Cheng Zhou, Chun-Fang Sun, E. Ardonne, Gang-Cheng Wang, Gui-Jiao Du, H.N.V. Temperley, J. Murakami, Kang Xue, L.D. Gou, M. Jimbo, M. Wadati, M.L. Ge, R.J. Baxter, Y. Zhang   +13 more
core   +1 more source

Vector bundles on bielliptic surfaces: Ulrich bundles and degree of irrationality

Mathematische Nachrichten, EarlyView.
Abstract This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces S$S$, which depends on the topological type of S$S$. In doing so, we study the weak Brill–Noether property for moduli spaces of sheaves with isotropic Mukai vector. Adapting an idea of Moretti
Edoardo Mason
wiley   +1 more source

A topology related to implication and upsets on a bounded BCK-algebra

Open Mathematics
The main purpose of this article is to investigate a topology based on implication and upsets in a bounded BCK-algebra. First, we introduce a special kind of sets associated with implication and upsets in a bounded BCK-algebra, and some basic properties ...
Wu Supeng, Liu Hui, Yang Jiang
doaj   +1 more source

Topological current algebras in two dimensions

, 1993
Two-dimensional topological field theories possessing a non-abelian current symmetry are constructed. The topological conformal algebra of these models is analysed. It differs from the one obtained by twisting the $N=2$ superconformal models and contains
A.V. Ramallo, Aharony, Aharony, Bershadski, Birmingham, Dijkgraaf, Eguchi, Eguchi, Hu, Hu, J.M. Isidro, Kazama, Knizhnik, Knizhnik, Lerche, Polyakov, Polyakov, Spiegelglas, Witten, Witten, Witten, Witten, Witten   +22 more
core   +1 more source

Extended BRST invariance in topological Yang Mills theory revisited [PDF]

, 2000
Extended BRST invariance (BRST plus anti-BRST invariances) provides in principle a natural way of introducing the complete gauge fixing structure associated to a gauge field theory in the minimum representation of the algebra.
Cresus F. L. Godinho, D. Birmingham, E. Witten, F. R. Ore, H. J. Lee, J. M. F. Labastida, L. Baulieu, L. Baulieu, L. Baulieu, L. Baulieu, M. J. Perry, Nelson R. F. Braga, S. Deguchi   +12 more
core   +2 more sources

A Biophysical Approach to the Design of Networks of Communication Systems

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Inspired by the growth dynamics of the protist Physarum polycephalum, we employ a formalism that describes adaptive, incompressible Hagen‐Poiseuille flows on channel networks to identify graphs connecting different nodes within Euclidean space. These graphs are either suboptimal or optimal relative to their length.
Rodrigo Almeida, Ana Filipa Valente, Rui Dilão   +2 more
wiley   +1 more source

On the Relationship between Primal/Dual Cell Complexes of the Cell Method and Primal/Dual Vector Spaces: an Application to the Cantilever Elastic Beam with Elastic Inclusion

Curved and Layered Structures, 2019
The Cell Method (CM) is an algebraic numerical method based on the use of global variables: the configuration, source and energetic global variables. The configuration variables with their topological equations, on the one hand, and the source variables ...
Ferretti Elena
doaj   +1 more source

Existence Analysis of a Three‐Species Memristor Drift‐Diffusion System Coupled to Electric Networks

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT The existence of global weak solutions to a partial‐differential‐algebraic system is proved. The system consists of the drift‐diffusion equations for the electron, hole, and oxide vacancy densities in a memristor device, the Poisson equation for the electric potential, and the differential‐algebraic equations for an electric network.
Ansgar Jüngel, Tuấn Tùng Nguyến
wiley   +1 more source