Results 21 to 30 of about 240,294 (261)

Majorana multipole response: General theory and application to wallpaper groups [PDF]

open access: yes, 2020
Emergent Majorana fermions on surfaces of time-reversal invariant topological superconductors host electromagnetic structures and realize unique electromagnetic responses.
S. Kobayashi   +3 more
semanticscholar   +1 more source

Anomaly matching in the symmetry broken phase: Domain walls, CPT, and the Smith isomorphism

open access: yesSciPost Physics, 2020
Symmetries in Quantum Field Theory may have 't Hooft anomalies. If the symmetry is unbroken in the vacuum, the anomaly implies a nontrivial low-energy limit, such as gapless modes or a topological field theory. If the symmetry is spontaneously broken,
Itamar Hason, Zohar Komargodski, Ryan Thorngren
doaj   +1 more source

Branes, Quantum Nambu Brackets, and the Hydrogen Atom [PDF]

open access: yes, 2004
The Nambu Bracket quantization of the Hydrogen atom is worked out as an illustration of the general method. The dynamics of topological open branes is controlled classically by Nambu Brackets.
Curtright, Thomas, Zachos, Cosmas
core   +2 more sources

Facial one-pot synthesis of D3h symmetric bicyclocalix[2]arene[2]triazines and their layered comb self-assembly

open access: yesJournal of Saudi Chemical Society, 2018
A number of D3h symmetric bicyclocalix[2]arene[2]triazine core compounds were synthesized via a general and good-yielding (43–48% yield) facile protocol starting from cyanuric halides, phloroglucinol and K2CO3 under very mild reaction conditions.
Yin Chen   +4 more
doaj   +1 more source

Finding a Novel Chalcone–Cinnamic Acid Chimeric Compound with Antiproliferative Activity against MCF-7 Cell Line Using a Free-Wilson Type Approach

open access: yesMolecules, 2023
In this work, we carried out the design and synthesis of new chimeric compounds from the natural cytotoxic chalcone 2′,4′-dihydroxychalcone (2′,4′-DHC, A) in combination with cinnamic acids.
Isis A. Y. Ventura-Salazar   +6 more
doaj   +1 more source

Topological groups, \mu-types and their stabilizers [PDF]

open access: yes, 2014
We consider an arbitrary topological group $G$ definable in a structure $\mathcal M$, such that some basis for the topology of $G$ consists of sets definable in $\mathcal M$.
Y. Peterzil, S. Starchenko
semanticscholar   +1 more source

Twisted K-theory of differentiable stacks [PDF]

open access: yes, 2004
In this paper, we develop twisted $K$-theory for stacks, where the twisted class is given by an $S^1$-gerbe over the stack. General properties, including the Mayer-Vietoris property, Bott periodicity, and the product structure $K^i_\alpha \otimes K^j_ ...
Laurent-Gengoux, Camille   +2 more
core   +4 more sources

Spinning Particles, Braid Groups and Solitons [PDF]

open access: yes, 1994
We develop general techniques for computing the fundamental group of the configuration space of $n$ identical particles, possessing a generic internal structure, moving on a manifold $M$.
Aneziris   +77 more
core   +2 more sources

Magnetic circular dichroism versus orbital magnetization

open access: yesPhysical Review Research, 2020
The magnetic circular dichroism sum rule yields an extremely useful ground-state observable, which provides a quantitative measure of spontaneous time-reversal symmetry breaking (T-breaking) in a given material.
Raffaele Resta
doaj   +1 more source

Infinitesimal Operations on Complexes of Graphs [PDF]

open access: yes, 2003
In two seminal papers Kontsevich used a construction called_graph homology_ as a bridge between certain infinite dimensional Lie algebras and various topological objects, including moduli spaces of curves, the group of outer automorphisms of a free group,
Conant, Jim, Vogtmann, Karen
core   +2 more sources

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