Results 21 to 30 of about 158 (120)

Spectral properties of the monodromy matrix for Harper equation [PDF]

Journées équations aux dérivées partielles, 1996
The authors describe properties of the entire analytic solutions of the Harper equation with a periodic coefficient of the form \((1/2)[\psi(x+h)+\psi(x-h)]+\cos x \psi(x)=E(x)\), where \(x\in{\mathbb{R}}\), \(\psi(x)\in{\mathbb{C}}\), \(h\) is fixed ...
Buslaev, V., Fedotov, A.
openaire   +2 more sources

Entanglement entropy, OTOC and bootstrap in 2D CFTs from Regge and light cone limits of multi-point conformal block

Journal of High Energy Physics, 2019
We explore the structures of light cone and Regge limit singularities of n-point Virasoro conformal blocks in c > 1 two-dimensional conformal field theories with no chiral primaries, using fusion matrix approach.
Yuya Kusuki, Masamichi Miyaji
doaj   +1 more source

Weyl metrics and Wiener-Hopf factorization

Journal of High Energy Physics, 2020
We consider the Riemann-Hilbert factorization approach to the construction of Weyl metrics in four space-time dimensions. We present, for the first time, a rigorous proof of the remarkable fact that the canonical Wiener-Hopf factorization of a matrix ...
P. Aniceto, M.C. Câmara, G.L. Cardoso, M. Rosselló   +3 more
doaj   +1 more source

MONODROMY MATRIX IN THE pp-WAVE LIMIT

International Journal of Modern Physics A, 2004
We consider the pp-wave limit of an exactly solvable gauged WZWN model proposed by Sfetsos and Tseytlin. The monodromy matrix is constructed for the model by adopting the methods utilized by us earlier. The pole structure of the monodromy matrix is analyzed and their properties are discussed in the context of the pp-wave limit of the gauged WZWN model.
Das, Ashok, Melikyan, A., Maharana, Jnanadeva   +2 more
openaire   +2 more sources

On the universality of late-time correlators in semi-classical 2d CFTs

Journal of High Energy Physics, 2018
In the framework of the AdS3/ CFT2 correspondence, we present a systematic analysis of the late time thermalization of a two dimensional CFT state created by insertion of small number of heavy operators on the vacuum. We show that at late Lorentzian time,
Souvik Banerjee, Jan-Willem Bryan, Gideon Vos   +2 more
doaj   +1 more source

A note on gl2 $$ \mathfrak{g}{\mathfrak{l}}_2 $$-invariant Bethe vectors

Journal of High Energy Physics, 2018
We consider gl2 $$ \mathfrak{g}{\mathfrak{l}}_2 $$-invariant quantum integrable models solvable by the algebraic Bethe ansatz. We show that the form of on-shell Bethe vectors is preserved under certain twist transformations of the monodromy matrix.
S. Belliard, N. A. Slavnov
doaj   +1 more source

Lax pairs for string Newton Cartan geometry

Nuclear Physics B, 2020
In this paper, based on a systematic formulation of Lax pairs, we show classical integrability for nonrelativistic strings propagating over stringy Newton-Cartan (NC) geometry.
Dibakar Roychowdhury
doaj   +1 more source

Carving out the space of open-string S-matrix

Journal of High Energy Physics, 2021
In this paper, we explore the open string amplitude’s dual role as a space-time S-matrix and a 2D holomorphic CFT correlation function. We pursue this correspondence in two directions.
Yu-tin Huang, Jin-Yu Liu, Laurentiu Rodina, Yihong Wang   +3 more
doaj   +1 more source

Conformal spectral theory for the monodromy matrix [PDF]

Transactions of the American Mathematical Society, 2010
For any N × N
openaire   +3 more sources

On Quantum WZNW Monodromy Matrix: Factorization, Diagonalization, and Determinant [PDF]

, 2013
We review the basic algebraic properties of the quantum monodromy matrix M in the canonically quantized chiral SU(n)_k Wess-Zumino-Novikov-Witten model with a quantum group symmetry.
Hadjiivanov, Ludmil, Furlan, Paolo
openaire   +2 more sources