Results 41 to 50 of about 52,638 (215)

On the Kähler-likeness on almost Hermitian manifolds

open access: yesComplex Manifolds, 2019
We define a Kähler-like almost Hermitian metric. We will prove that on a compact Kähler-like almost Hermitian manifold (M2n, J, g), if it admits a positive ∂ ̄∂-closed (n − 2, n − 2)-form, then g is a quasi-Kähler metric.
Kawamura Masaya
doaj   +1 more source

Synthetic flux attachment

open access: yesPhysical Review Research, 2020
Topological field theories emerge at low energy in strongly correlated condensed matter systems and appear in the context of planar gravity. In particular, the study of Chern-Simons terms gives rise to the concept of flux attachment when the gauge field ...
Gerard Valentí-Rojas   +2 more
doaj   +1 more source

Gauss Law Constraints in Chern-Simons Theory From BRST Quantization [PDF]

open access: yes, 1996
The physical state condition in the BRST quantization of Chern-Simons field theory is used to derive Gauss law constraints in the presence of Wilson loops, which play an important role in explicitly establishing the connection of Chern-Simons field ...
Alvarez-Gaumé   +23 more
core   +4 more sources

S-duality resurgence in SL(2) Chern-Simons theory

open access: yesJournal of High Energy Physics, 2018
We find that an S-duality in SL(2) Chern-Simons theory for hyperbolic 3-manifolds emerges by the Borel resummation of a semiclassical expansion around a particular flat connection associated to the hyperbolic structure. We demonstrate it numerically with
Dongmin Gang, Yasuyuki Hatsuda
doaj   +1 more source

Higher-order topological insulators, topological pumps and the quantum Hall effect in high dimensions

open access: yesPhysical Review Research, 2020
Topological insulators are materials with spectral bands associated with an integer-valued index, manifesting through quantized bulk phenomena and robust boundary effects.
Ioannis Petrides, Oded Zilberberg
doaj   +1 more source

Chern-Simons Field Theory and Completely Integrable Systems [PDF]

open access: yes, 1996
We show that the classical non-abelian pure Chern-Simons action is related in a natural way to completely integrable systems of the Davey-Stewartson hyerarchy, via reductions of the gauge connection in Hermitian spaces and by performing certain gauge ...
Arkadiev   +16 more
core   +3 more sources

The Chern classes of Sobolev connections [PDF]

open access: yesCommunications in Mathematical Physics, 1985
Assuming that F is the curvature (field) of a connection (potential) on \(R^ 4\) with finite \(L^ 2\) norm, the author proves that the Chern number \(c_ 2=1/8\pi^ 2\int_{R^ 4}F\wedge F\) (topological quantum number) is an integer. This generalizes previous results which showed that the integrality holds for F satisfying the Yang-Mills equations ...
openaire   +3 more sources

Measuring topology from dynamics by obtaining the Chern number from a linking number

open access: yesNature Communications, 2019
The connection between the topological properties of the ground state and non-equilibrium dynamics remains obscure. Here, Tarnowski et al. define and measure a linking number between static and dynamical vortices, which directly corresponds to the ground-
Matthias Tarnowski   +6 more
doaj   +1 more source

Symplectic Connections Induced by the Chern Connection

open access: yes, 2008
Let $(M, )$ be a symplectic manifold and $F$ be a Finsler structure on $M$. In the present paper we define a lift of the symplectic two-form $ $ on the manifold $TM\backslash 0$, and find the conditions that the Chern connection of the Finsler structure $F$ preserves this lift of $ $.
Esrafilian, Ebrahim   +1 more
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

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