English
Related papers

Related papers: Kinematic space and the orbit method

200 papers

The classification of the unitary irreducible representations of symmetry groups is a cornerstone of modern quantum physics, as it provides the fundamental building blocks for constructing the Hilbert spaces of theories admitting these…

High Energy Physics - Theory · Physics 2025-07-16 Giulio Neri , Ludovic Varrin

We use the formal Lie algebraic structure in the ``space'' of hamiltonians provided by equal time commutators to define a Kirillov-Konstant symplectic structure in the coadjoint orbits of the associated formal group. The dual is defined via…

High Energy Physics - Theory · Physics 2007-05-23 E. Ramos , O. A. Soloviev

According to the Ryu-Takayanagi prescription, the entanglement entropy of subsystems in the boundary conformal field theory (CFT) is proportional to the area of extremal surfaces in bulk asymptotically Anti-de Sitter (AdS) spacetimes. The…

High Energy Physics - Theory · Physics 2020-09-16 Reza Fareghbal , Mehdi Hakami Shalamzari , Pedram Karimi

This paper unifies the concept of kinematic mappings by using geometric algebras. We present a method for constructing kinematic mappings for certain Cayley-Klein geometries. These geometries are described in an algebraic setting by the…

Metric Geometry · Mathematics 2013-11-04 Daniel Klawitter , Markus Hagemann

We study the space geometry of a rotating disk both from a theoretical and operational approach, in particular we give a precise definition of the space of the disk, which is not clearly defined in the literature. To this end we define an…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Guido Rizzi , Matteo Luca Ruggiero

In this article we give formulas for the Riemann-Roch number of a symplectic quotient arising as the reduced space corresponding to a coadjoint orbit (for an orbit close to 0) as an evaluation of cohomology classes over the reduced space at…

Symplectic Geometry · Mathematics 2007-05-23 Mark Hamilton , Lisa Jeffrey

We give a classification of generic coadjoint orbits for the group of area-preserving diffeomorphisms of a closed non-orientable surface. This completes V. Arnold's program of studying invariants of incompressible fluids in 2D. As an…

Symplectic Geometry · Mathematics 2024-04-09 Anton Izosimov , Boris Khesin , Ilia Kirillov

We propose to embed de Sitter space into five dimensional anti-de Sitter space to compute some physical quantities of interest, using the AdS/CFT correspondence. The static de Sitter can be considered as the conformal structure of the…

High Energy Physics - Theory · Physics 2011-07-19 Miao Li , Yi Pang

It was proposed by Ryu and Takayanagi that the entanglement entropy in conformal field theory (CFT) is related through the AdS/CFT correspondence to the area of a minimal surface in the bulk. We apply this holographic geometrical method of…

High Energy Physics - Theory · Physics 2014-06-11 Pavel Krtous , Andrei Zelnikov

This paper is devoted to the construction of a hyperkaehler structure on the complexification of any Hermitian-symmetric affine coadjoint orbit O of a semi-simple L*-group of compact type, which is compatible with the complex symplectic…

Mathematical Physics · Physics 2008-07-15 Alice Barbara Tumpach

We extend kinematic space to a simple scenario where the state is not fixed by conformal invariance: the vacuum of a conformal field theory with a boundary (bCFT). We identify the kinematic space associated with the boundary operator…

High Energy Physics - Theory · Physics 2017-09-13 Andreas Karch , James Sully , Christoph F. Uhlemann , Devin G. E. Walker

The FRT quantum group and space theory is reformulated from the standard mathematical basis to an arbitrary one. The $N$-dimensional quantum vector Cayley-Klein spaces are described in Cartesian basis and the quantum analogs of…

High Energy Physics - Theory · Physics 2007-05-23 N. A. Gromov , V. V. Kuratov

We show that the dynamics of the kinematic space of a 2-dimensional CFT is gravitational and described by Jackiw-Teitelboim theory. We discuss the first law of this 2-dimensional dilaton gravity theory to support the relation between…

High Energy Physics - Theory · Physics 2019-11-01 Nele Callebaut

This work is a contribution to the area of Strict Quantization (in the sense of Rieffel) in the presence of curvature and non-Abelian group actions. More precisely, we use geometry to obtain explicit oscillatory integral formulae for…

Quantum Algebra · Mathematics 2007-05-23 Pierre Bieliavsky

In this paper we derive holographic wave equations for hadrons with arbitrary spin starting from an effective action in a higher-dimensional space asymptotic to anti-de Sitter (AdS) space. Our procedure takes advantage of the local tangent…

High Energy Physics - Phenomenology · Physics 2013-04-10 Guy F. de Teramond , Hans Gunter Dosch , Stanley J. Brodsky

A metric is proposed to explore the noncommutative form of the Anti-de Sitter space due to quantum effects. It has been proved that the non commutativity in AdS space induces a single component gravitoelectric field. The holographic…

High Energy Physics - Theory · Physics 2018-10-09 Davood Momeni , Muhammad Raza , Ratbay Myrzakulov

The moduli space of spatial polygons is known as a symplectic manifold equipped with both K\"ahler and real polarizations. In this paper, associated to the K\"ahler and real polarizations, morphisms of operads…

Symplectic Geometry · Mathematics 2022-04-13 Yuya Takahashi

An asymptotically AdS geometry connecting two or more boundaries is given by a entangled state, that can be expanded in the product basis of the Hilbert spaces of each CFT living on the boundaries. We derive a prescription to compute this…

High Energy Physics - Theory · Physics 2023-08-16 Marcelo Botta Cantcheff

Given a closed surface endowed with a volume form, we equip the space of compatible Riemannian structures with the structure of an infinite-dimensional symplectic manifold. We show that the natural action of the group of volume-preserving…

Differential Geometry · Mathematics 2019-09-26 Tobias Diez , Tudor S. Ratiu

We demonstrate the emergence of the conformal group SO(4,2) from the Clifford algebra of spacetime. The latter algebra is a manifold, called Clifford space, which is assumed to be the arena in which physics takes place. A Clifford space…

High Energy Physics - Theory · Physics 2007-05-23 C. Castro , M. Pavsic