Results 31 to 40 of about 52,641 (188)

Abelian Chern–Simons theory, Stokes’ theorem, and generalized connections

open access: yesJournal of Geometry and Physics, 2012
Generalized connections and their calculus have been developed in the context of quantum gravity. Here we apply them to abelian Chern-Simons theory. We derive the expectation values of holonomies in U(1) Chern-Simons theory using Stokes' theorem, flux operators and generalized connections. A framing of the holonomy loops arises in our construction, and
Sahlmann, Hanno, Thiemann, Thomas
openaire   +3 more sources

On Kähler-like and G-Kähler-like almost Hermitian manifolds

open access: yesComplex Manifolds, 2020
We introduce Kähler-like, G-Kähler-like metrics on almost Hermitian manifolds. We prove that a compact Kähler-like and G-Kähler-like almost Hermitian manifold equipped with an almost balanced metric is Kähler.
Kawamura Masaya
doaj   +1 more source

A Note on Characteristic Classes [PDF]

open access: yes, 2006
This paper studies the relationship between the sections and the Chern or Pontrjagin classes of a vector bundle by the theory of connection.
Zhou, Jianwei
core   +4 more sources

Strong Connections and Chern-Connes Pairing¶in the Hopf-Galois Theory [PDF]

open access: yesCommunications in Mathematical Physics, 2001
30 pages ...
Dabrowski, Ludwik, GROSSE H., HAJAC P.
openaire   +3 more sources

Chern-Simons theory and three-dimensional surfaces [PDF]

open access: yes, 2006
There are two natural Chern-Simons theories associated with the embedding of a three-dimensional surface in Euclidean space; one is constructed using the induced metric connection -- it involves only the intrinsic geometry, the other is extrinsic and ...
Capovilla R   +6 more
core   +4 more sources

Super Chern–Simons theory and flat super connections on a torus [PDF]

open access: yesAdvances in Theoretical and Mathematical Physics, 2001
We study the moduli space of a super Chern-Simons theory on a manifold with the topology ${\bf R}\times $, where $ $ is a compact surface. The moduli space is that of flat super connections modulo gauge transformations on $ $, and we study in detail the case when $ $ is atorus and the supergroup is $OSp(m|2n)$.
Miković, A., Picken, R.
openaire   +3 more sources

Topological linear response of hyperbolic Chern insulators

open access: yesSciPost Physics
We establish a connection between the electromagnetic Hall response and band topological invariants in hyperbolic Chern insulators by deriving a hyperbolic analog of the Thouless-Kohmoto-Nightingale-den Nijs (TKNN) formula.
Canon Sun, Anffany Chen, Tomáš Bzdušek, Joseph Maciejko
doaj   +1 more source

L lines, C points and Chern numbers: understanding band structure topology using polarization fields

open access: yesNew Journal of Physics, 2017
Topology has appeared in different physical contexts. The most prominent application is topologically protected edge transport in condensed matter physics. The Chern number, the topological invariant of gapped Bloch Hamiltonians, is an important quantity
Thomas Fösel   +2 more
doaj   +1 more source

Holographic spin liquids and Lovelock Chern-Simons gravity

open access: yesJournal of High Energy Physics, 2020
We explore the role of torsion as source of spin current in strongly interacting conformal fluids using holography. We establish the constitutive relations of the basic hydrodynamic variables, the energy-momentum tensor and the spin current based on the ...
A.D. Gallegos, U. Gürsoy
doaj   +1 more source

Chern-Dirac bundles on non-K\"ahler Hermitian manifolds

open access: yes, 2017
We introduce the notions of Chern-Dirac bundles and Chern-Dirac operators on Hermitian manifolds. They are analogues of classical Dirac bundles and Dirac operators, with Levi-Civita connection replaced by Chern connection.
Pediconi, Francesco
core   +1 more source

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