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We construct a deformation quantization with separation of variables of the Grassmannian $G_{2,4}(\mathbb{C})$. A star product on $G_{2,4}(\mathbb{C})$ can be explicitly determined as the solution of the recurrence relations for…

Mathematical Physics · Physics 2025-07-24 Taika Okuda , Akifumi Sako

We start with a short exposition of developments in physics and mathematics that preceded, formed the basis for, or accompanied, the birth of deformation quantization in the seventies. We indicate how the latter is at least a viable…

Quantum Algebra · Mathematics 2007-05-23 Giuseppe Dito , Daniel Sternheimer

For compact quantizable K\"ahler manifolds certain naturally defined star products and their constructions are reviewed. The presentation centers around the Berezin-Toeplitz quantization scheme which is explained. As star products the…

Quantum Algebra · Mathematics 2012-06-12 Martin Schlichenmaier

We show that every star product on a symplectic manifold defines uniquely a 1-differentiable deformation of the Poisson bracket. Explicit formulas are given. As a corollary we can identify the characteristic class of any star product as a…

Quantum Algebra · Mathematics 2007-05-23 Philippe Bonneau

In the first part of this paper we outline the constructions and properties of Fedosov star product and Berezin-Toeplitz star product. In the second part we outline the basic ideas and recent developments on Yau-Tian-Donaldson conjecture on…

Symplectic Geometry · Mathematics 2020-01-13 Akito Futaki , Laurent La Fuente-Gravy

B. Fedosov has given a simple and very natural construction of a deformation quantization for any symplectic manifold, using a flat connection on the bundle of formal Weyl algebras associated to the tangent bundle of a symplectic manifold.…

High Energy Physics - Theory · Physics 2009-09-25 Claudio Emmrich , Alan Weinstein

We give a new construction of symbols of the differential operators on the sections of a quantum line bundle $L$ over a Kaehler manifold $M$ using the natural contravariant connection on $L$. These symbols are the functions on the tangent…

Quantum Algebra · Mathematics 2007-05-23 Alexander V. Karabegov

We show that the Hochschild cohomology of the algebra obtained by formal deformation quantization on a symplectic manifold is isomorphic to the formal series with coefficients in the de Rham cohomology of the manifold. The cohomology class…

q-alg · Mathematics 2008-02-03 Alan Weinstein , Ping Xu

This is an expository note on Fedosov's construction of deformation quantization. Given a symplectic manifold and a connection on it, we show how to calculate the star-product step by step. We draw simple diagrams to solve the recursive…

Symplectic Geometry · Mathematics 2016-09-07 Olga Kravchenko

We make a deformation quantization by Moyal star-product on a space of functions endowed with the normalized Wick product and where Stratonovich chaos are well defined.

Quantum Algebra · Mathematics 2012-03-19 Rémi Léandre , Maurice Obame Nguema

The variant of Fedosov construction based on fairly general fiberwise product in the Weyl bundle is studied. We analyze generalized star products of functions, of sections of endomorphisms bundle, and those generating deformed bimodule…

Mathematical Physics · Physics 2015-07-07 Michal Dobrski

In certain neighborhood $U$ of an arbitrary point of a symplectic manifold $M$ we construct a Fedosov-type star-product $\ast_L$ such that for an arbitrary leaf $\wp$ of a given polarization $\mathcal{D}\subset TM$ the algebra $C^\infty…

Quantum Algebra · Mathematics 2015-05-13 S. A. Pol'shin

We develop a complete theory of non-formal deformation quantization on the cotangent bundle of a weakly exponential Lie group. An appropriate integral formula for the star-product is introduced together with a suitable space of functions on…

Mathematical Physics · Physics 2024-05-29 Ziemowit Domański

To each natural deformation quantization on a Poisson manifold M we associate a Poisson morphism from the formal neighborhood of the zero section of the cotangent bundle to M to the formal neighborhood of the diagonal of the product M x M~,…

Quantum Algebra · Mathematics 2009-11-10 Alexander V. Karabegov

We give a simple formula for the operator C_3 of the standard deformation quantization with separation of variables on a K\"ahler manifold M. Unlike C_1 and C_2, this operator can not be expressed in terms of the K\"ahler-Poisson tensor on…

Quantum Algebra · Mathematics 2007-05-23 Alexander Karabegov

We use a natural affine connection with nontrivial torsion on an arbitrary almost-Kaehler manifold which respects the almost-Kaehler structure to construct a Fedosov-type deformation quantization on this manifold.

Quantum Algebra · Mathematics 2007-05-23 Alexander V. Karabegov , Martin Schlichenmaier

We give an invariant formula for a star product with separation of variables on a pseudo-Kahler manifold.

Quantum Algebra · Mathematics 2015-05-30 Alexander Karabegov

We give an elementary proof of the result by Leichtnam, Tang, and Weinstein that there exists a deformation quantization with separation of variables on a complex manifold endowed with a Kaehler-Poisson structure vanishing on a Levi…

Quantum Algebra · Mathematics 2007-05-23 Alexander V. Karabegov

We propose a new formula for the star product in deformation quantization of Poisson structures related in a specific way to a variational problem for a function $S$, interpreted as the action functional. Our approach is motivated by…

Mathematical Physics · Physics 2019-07-02 Eli Hawkins , Kasia Rejzner

It is shown how Seiberg-Witten equations can be obtained by means of Fedosov deformation quantization of endomorphism bundle and the corresponding theory of equivalences of star products. In such setting, Seiberg-Witten map can be…

High Energy Physics - Theory · Physics 2011-06-28 Michal Dobrski