Results 21 to 30 of about 233,734 (178)

Approximate symmetries in d = 4 CFTs with an Einstein gravity dual

open access: yesJournal of High Energy Physics, 2022
By applying the stress-tensor-scalar operator product expansion (OPE) twice, we search for algebraic structures in d = 4 conformal field theories (CFTs) with a pure Einstein gravity dual.
Kuo-Wei Huang
doaj   +1 more source

SLE martingales and the Virasoro algebra [PDF]

open access: yes, 2003
13 pagesWe present an explicit relation between representations of the Virasoro algebra and polynomial martingales in stochastic Loewner evolutions (SLE). We show that the Virasoro algebra is the spectrum generating algebra of SLE martingales.
Bernard, Denis, Bauer, Michel
core   +1 more source

Surface charges in Chern-Simons gravity with T T ¯ $$ T\overline{T} $$ deformation

open access: yesJournal of High Energy Physics, 2022
The T T ¯ $$ T\overline{T} $$ deformed 2D CFTs correspond to AdS3 gravity with Dirichlet boundary condition at finite cutoff or equivalently a mixed boundary condition at spatial infinity.
Miao He, Song He, Yi-hong Gao
doaj   +1 more source

W algebra and eigenvalues of the low-order string constraint operators for the discrete KP hierarchy

open access: yesPartial Differential Equations in Applied Mathematics, 2022
Firstly, for any p∈N, the string constraint operators without the redundant variables are calculated, which are imposed by the string equation on the τ-function of the p-reduced discrete Kadomtsev–Petviashvili (dKP) hierarchy.
Kong Huang, Shaowei Liu, Yuxing Ni
doaj   +1 more source

Ternary Virasoro–Witt algebra [PDF]

open access: yes, 2008
A 3-bracket variant of the Virasoro–Witt algebra is constructed through the use of su(1,1) enveloping algebra techniques. The Leibniz rules for 3-brackets acting on other 3-brackets in the algebra are discussed and verified in various ...
Fairlie, David B   +5 more
core   +1 more source

Lie bialgebra structures on the twisted Heisenberg–Virasoro algebra [PDF]

open access: yes, 2012
In this paper we investigate Lie bialgebra structures on the twisted Heisenberg–Virasoro algebra. With the determination of certain Lie bialgebra structures on the Virasoro algebra, we determine certain structures on the twisted Heisenberg–Virasoro ...
Pei, Yufeng, Zhu, Linsheng, Liu, Dong
core   +1 more source

Entropy of a generic null surface from its associated Virasoro algebra

open access: yesPhysics Letters B, 2016
Null surfaces act as one-way membranes, blocking information from those observers who do not cross them (e.g., in the black hole and the Rindler spacetimes) and these observers associate an entropy (and temperature) with the null surface.
Sumanta Chakraborty   +2 more
doaj   +1 more source

Zero modes of local operators in 2d CFT on a cylinder

open access: yesJournal of High Energy Physics, 2020
Studies of Eigenstate Thermalization Hypothesis (ETH) in two-dimensional CFTs call for calculation of the expectation values of local operators in highly excited energy eigenstates.
Anatoly Dymarsky   +2 more
doaj   +1 more source

Virasoro symmetries of the constrained dispersionless mKP hierarchy

open access: yesPhysics Letters B, 2023
This paper aims at the auto-Bäcklund transformations for the dispersionless mKP hierarchy, dispersionless Miura map between the constrained dispersionless mKP hierarchy and the constrained dispersionless Harry Dym hierarchy and Virasoro symmetries of the
Xiaoman Luo, Chuanzhong Li
doaj   +1 more source

Near-horizon extremal geometries: coadjoint orbits and quantization

open access: yesJournal of High Energy Physics, 2018
The NHEG algebra is an extension of Virasoro introduced in [arXiv:1503.07861]; it describes the symplectic symmetries of (n + 4)-dimensional Near Horizon Extremal Geometries with SL(2, ℝ) × U(1) n+ 1 isometry. In this work we construct the NHEG group and
R. Javadinezhad   +2 more
doaj   +1 more source

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