Results 21 to 30 of about 3,581,339 (338)

A test of bosonization at the level of four-point functions in Chern-Simons vector models [PDF]

open access: yes, 2015
We study four-point functions in Chern-Simons vector models in the large $N$ limit. We compute the four-point function of the scalar primary to all orders in the `t Hooft coupling $\lambda=N/k$ in $U(N)_k$ Chern-Simons theory coupled to a fundamental ...
Bedhotiya, Akshay, Prakash, Shiroman
core   +2 more sources

An Isotropic to Anisotropic Transition in a Fractional Quantum Hall State [PDF]

open access: yes, 2010
We study a novel abelian gauge theory in 2+1 dimensions which has surprising theoretical and phenomenological features. The theory has a vanishing coefficient for the square of the electric field $e_i^2$, characteristic of a quantum critical point with ...
Kachru, Shamit   +2 more
core   +1 more source

Multiple solutions for systems of multi-point boundary value problems [PDF]

open access: yesOpuscula Mathematica, 2013
In this paper, we establish the existence of at least three solutions of the multi-point boundary value system \[\left\{\begin{array}{ll} -(\phi_{p_i}(u'_{i}))'=\lambda F_{u_{i}}(x,u_{1},\ldots,u_{n}),\ t\in(0,1),\\ u_{i}(0)=\sum_{j=1}^m a_ju_i(x_j ...
John R. Graef   +2 more
doaj   +1 more source

Morse theory without critical points [PDF]

open access: yesRocky Mountain Journal of Mathematics, 1989
Let \(X\) be an \(n\)-dimensional differentiable manifold and \(f: X\to\mathbb{R}\) a real-valued \(C^ \infty\) function without critical points. The topological pair \((X,A)\) is said to be regular if \(H_ .(X,A)=0\). The fiber \(f^{-1}(c)\) is said to be critical if for every positive \(\varepsilon\) there is some \(\delta ...
openaire   +4 more sources

Noether-Wald energy in Critical Gravity [PDF]

open access: yes, 2018
Criticality represents a specific point in the parameter space of a higher-derivative gravity theory, where the linearized field equations become degenerate.
Anastasiou, Giorgos   +2 more
core   +2 more sources

Evolution of holographic complexity near critical point

open access: yesJournal of High Energy Physics, 2019
The holographic complexity has been studied in a background which includes a critical point in the dual field theory. We have examined how the complexity rate and the saturation time of dynamical variables in the theory behave as one moves towards the ...
H. Ebrahim, M. Asadi, M. Ali-Akbari
doaj   +1 more source

Morse-Novikov critical point theory, Cohn localization and Dirichlet units

open access: yes, 1999
In this paper we construct a Universal chain complex, counting zeros of closed 1-forms on a manifold. The Universal complex is a refinement of the well known Novikov complex; it relates the homotopy type of the manifold, after a suitable noncommutative ...
Farber, M.
core   +1 more source

Landau theory of compressible magnets near a quantum critical point

open access: yes, 2009
Landau theory is used to investigate the behaviour of a metallic magnet driven towards a quantum critical point by the application of pressure. The observed dependence of the transition temperature with pressure is used to show that the coupling of the ...
Ahmed, Mahrous R., Gehring, Gillian A
core   +1 more source

Permutation-Symmetric Multicritical Points in Random Antiferromagnetic Spin Chains [PDF]

open access: yes, 2002
The low-energy properties of a system at a critical point may have additional symmetries not present in the microscopic Hamiltonian. This letter presents the theory of a class of multicritical points that provide an interesting example of this in the ...
C. Monthus   +3 more
core   +1 more source

Critical field theory of the Kondo lattice model in two dimensions

open access: yes, 2004
In the context of the U(1) slave boson theory we derive a critical field theory near the quantum critical point of the Kondo lattice model in two spatial dimensions.
Alexei M. Tsvelik   +2 more
core   +1 more source

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