Results 31 to 40 of about 836,069 (296)
Non-invertible higher-categorical symmetries
SciPost Physics, 2023 We sketch a procedure to capture general non-invertible symmetries of a $d$-dimensional quantum field theory in the data of a higher-category, which captures the local properties of topological defects associated to the symmetries.
Lakshya Bhardwaj, Lea E. Bottini, Sakura Schäfer-Nameki, Apoorv Tiwari
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Structural Colors from Modulated Topological Defects in Molecular Smectic Liquid Crystals. [PDF]
Adv Sci (Weinh)Rather than using dyes and pigments, nature produces the colors of some butterflies and beetles through optical interference phenomena. This study describes an original biomimetic strategy exploiting the spontaneous formation of modulated linear defects in thin films of 8CB, a common molecular liquid crystal.
Mahyaoui CN +7 more
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Formation of topological defects [PDF]
Physical Review D, 1991 34 pages, 7 figures. Based on lectures at ICTP, Summer School on Cosmology, July 1997.
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Topological spin defects of light
, 2022 Topological defects are found in a variety of systems, and their existence are robust under perturbations due to their topological nature. Here we introduce a new type of topological defects found in electromagnetic waves: topological spin defects.
Wang, Haiwen +2 more
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Topological Acoustic Sensing Using Nonseparable Superpositions of Acoustic Waves
Vibration, 2022 We introduce a method, topological acoustic sensing, which exploits changes in the geometric phase of nonseparable coherent superpositions of acoustic waves to sense mass defects in arrays of coupled acoustic waveguides.
Trevor D. Lata +3 more
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Topological Quantum Field Theory and the Geometric Langlands Correspondence [PDF]
, 2013 In the pioneering work of A. Kapustin and E. Witten, the geometric Langlands program of number theory was shown to be intimately related to duality of GL-twisted N=4 super Yang-Mills theory compactified on a Riemann surface. In this thesis, we generalize
Setter, Kevin Luke
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Semilocal topological defects [PDF]
Nuclear Physics B, 1993 Semilocal defects are those formed in field theories with spontaneously broken symmetries, where the vacuum manifold $M$ is fibred by the action of the gauge group in a non-trivial way. Studied in this paper is the simplest such class of theories, in which $M\simeq S^{2N-1}$, fibred by the action of a local $U(1)$ symmetry.
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Scientific Reports, 2021 Topological defects in liquid crystals (LCs) dominate molecular alignment/motion in many cases. Here, the neural network (NN) function has been introduced to predict the LC orientation condition (orientation angle and order parameter) at local positions ...
Haruka Sakanoue +2 more
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From classical to quantum regime of topological surface states via defect engineering
SciPost Physics Lecture Notes, 2022 Since the notion of topological insulator (TI) was envisioned in late 2000s, topology has become a new paradigm in condensed matter physics. Realization of topology as a generic property of materials has led to numerous predictions of topological ...
Maryam Salehi, Xiong Yao, Seongshik Oh
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Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose–Einstein condensate [PDF]
, 2014 We propose to use spatial control of the Zeeman energy shifts in an ultracold atomic gas to engineer an interface between topologically distinct regions.
Borgh, Magnus O +5 more
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