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We construct a Wick-type deformation quantization of contact metric manifolds. The construction is fully canonical and involves no arbitrary choice. Unlike the case of symplectic or Poisson manifolds, not every classical observable on a…

Mathematical Physics · Physics 2023-11-22 Boris M. Elfimov , Alexey A. Sharapov

In 1974, Folland and Stein constructed an inhomogeneous pseudo-differential calculus based on analysis on the Heisenberg group. This Heisenberg calculus was generalized by several authors, to any subbundle of the tangent bundle. van Erp and…

Differential Geometry · Mathematics 2021-12-07 Omar Mohsen

We propose an explicit construction of the deformation quantization of the general second-class constrained system, which is covariant with respect to local coordinates on the phase space. The approach is based on constructing the effective…

High Energy Physics - Theory · Physics 2014-11-18 I. A. Batalin , M. A. Grigoriev , S. L. Lyakhovich

We present an explicit formula for the deformation quantization on K\"{a}hler manifolds.

Quantum Algebra · Mathematics 2007-05-23 Nicolai Reshetikhin , Leon Takhtajan

Construction of an infinite dimensional differentiable manifold ${\mathbb R}^{\infty}$ not modelled on any Banach space is proposed. Definition, metric and differential structures of a Weyl algebra and a Weyl algebra bundle are presented.…

Mathematical Physics · Physics 2009-11-11 Jaromir Tosiek

We compute explicitly a star product on the Minkowski space whose Poisson bracket is quadratic. This star product corresponds to a deformation of the conformal spacetime, whose big cell is the Minkowski spacetime. The description of…

High Energy Physics - Theory · Physics 2021-04-20 D. Cervantes , R. Fioresi , M. A. Lledó , F. A. Nadal

The notion of coupled K\"ahler-Einstein metrics was introduced recently by Hultgren-WittNystr\"om. In this paper we discuss deformation of a coupled K\"ahler-Einstein metrics on a Fano manifold. In particular we obtain a necessary and…

Differential Geometry · Mathematics 2020-03-17 Satoshi Nakamura

Motivated by the problem of transverse deformation quantization of foliated manifolds, we describe a quantization of Dirac structures (more precisely, of those that are formal deformations of regular ones) to stacks of algebroids in the…

Quantum Algebra · Mathematics 2007-05-23 Pavol Severa

The deformation quantization of Moyal-Weyl star product of functions of quaternions is investigated.

Mathematical Physics · Physics 2007-05-23 Tadafumi Ohsaku

Let X be a compact Kaehler manifold. We expect that any direct sum decomposition of the tangent bundle T(X) comes from a splitting of the universal covering space of X as a product of manifolds, in such a way that the given decomposition of…

Algebraic Geometry · Mathematics 2007-05-23 Arnaud Beauville

We show that for every vector bundle E over any given symplectic manifold M there exists an explicitly given super-Poisson bracket on the space of sections of the dual Grassmann bundle associated to E built out of symplectic structure of M,…

q-alg · Mathematics 2008-02-03 Martin Bordemann

In these lecture notes I give an introduction to deformation quantization. The quantization problem is discussed in some detail thereby motivating the notion of star products. Starting from a deformed observable algebra, i.e. the star…

High Energy Physics - Theory · Physics 2007-05-23 Stefan Waldmann

We apply the star product quantization to the Lie algebra. The quantization in terms of the star product is well known and the commutation relation in this case is called the $\theta$-deformation where the constant $\theta$ appears as a…

High Energy Physics - Theory · Physics 2010-11-16 Takao Koikawa

We construct the deformation functor associated to a couple of morphisms of differential graded Lie algebras, and use it to study the infinitesimal deformations of a holomorphic map of compact complex manifolds. In particular, in the case…

Algebraic Geometry · Mathematics 2007-05-23 Donatella Iacono

On a compact K\"ahler manifold $X$, Toeplitz operators determine a deformation quantization $(\operatorname{C}^\infty(X, \mathbb{C})[[\hbar]], \star)$ with separation of variables [10] with respect to transversal complex polarizations…

Symplectic Geometry · Mathematics 2021-05-07 NaiChung Conan Leung , YuTung Yau

Starting with the well-defined product of quantum fields at two spacetime points, we explore an associated Poisson structure for classical field theories within the deformation quantization formalism. We realize that the induced…

High Energy Physics - Theory · Physics 2016-07-13 Jasel Berra-Montiel , Alberto Molgado , César D. Palacios-García

An analogue of the Moyal star product is presented for the deformed oscillator algebra. It contains several homotopy-like additional integration parameters in the multiplication kernel generalizing the differential Moyal star-product…

High Energy Physics - Theory · Physics 2021-12-22 A. V. Korybut

In this paper we investigate the possibility of constructing a complete quantization procedure consisting of geometric and deformation quantization. The latter assigns a noncommutative algebra to a symplectic manifold, by deforming the…

Mathematical Physics · Physics 2008-09-12 Christoph Nölle

The deformation star product of smooth functions on the momentum phase space of covariant (polysymplectic) Hamiltonian field theory is introduced.

High Energy Physics - Theory · Physics 2007-05-23 G. Sardanashvily

We study quantum deformations of Poisson orbivarieties. Given a Poisson manifold $(\mathbb{R}^{m},\alpha)$ we consider the Poisson orbivariety $(\mathbb{R}^{m})^{n}/S_{n}$. The Kontsevich star product on functions on $(\mathbb{R}^{m})^{n}$…

Quantum Algebra · Mathematics 2007-05-23 Rafael Diaz , Eddy Pariguan