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We use operator algebras and operator theory to obtain new result concerning Berezin quantization of compact K\"ahler manifolds. Our main tool is the notion of subproduct systems of finite-dimensional Hilbert spaces, which enables all…

Operator Algebras · Mathematics 2018-02-06 Andreas Andersson

We generalize the results of Montgomery for the Bochner Laplacian on high tensor powers of a line bundle. When specialized to Riemann surfaces, this leads to the Bergman kernel expansion and geometric quantization results for semi-positive…

Differential Geometry · Mathematics 2024-07-10 George Marinescu , Nikhil Savale

Self-similar potentials generalize the concept of shape-invariance which was originally introduced to explore exactly-solvable potentials in quantum mechanics. In this article it is shown that previously introduced algebraic approach to the…

Quantum Physics · Physics 2008-11-26 A. B. Balantekin , M. A. Candido Ribeiro , A. N. F. Aleixo

Let $\Gamma$ be a fuchsian subgroup of \pslr. In this paper we consider the $\Gamma$-equivariant form of the Berezin's quantization of the upper half plane which will correspond to a deformation quantization of the (singular) space $\Bbb…

funct-an · Mathematics 2008-02-03 Florin Radulescu

Phase space is the state space of classical mechanics, and this manifold is normally endowed only with a symplectic form. The geometry of quantum mechanics is necessarily more complicated. Arguments will be given to show that augmenting the…

Quantum Physics · Physics 2017-08-23 John R. Klauder

: Algebraic properties of orbifold models on arbitrary Riemann surfaces are investigated. The action of mapping class group transformations and of standard geometric operations is given explicitly. An infinite dimensional extension of the…

High Energy Physics - Theory · Physics 2015-06-26 Peter Bantay

In this paper we study certain algebraic properties of the quantum homology algebra for the class of symplectic toric Fano manifolds. In particular, we examine the semi-simplicity of the quantum homology algebra, and the more general…

Symplectic Geometry · Mathematics 2008-06-15 Yaron Ostrover , Ilya Tyomkin

This talk reports on results on the deformation quantization (star products) and on approximative operator representations for quantizable compact K"ahler manifolds obtained via Berezin-Toeplitz operators. After choosing a holomorphic…

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

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 introduce K-theoretic Gromov-Witten invariants of algebraic orbifold target spaces. Using the methods developed by Givental-Tonita we characterize Giventals Lagrangian cone of quantum K theory of orbifolds in terms of the cohomological…

Algebraic Geometry · Mathematics 2016-10-05 Valentin Tonita , Hsian-Hua Tseng

Kostant gave a model for the real geometric quantization associated to polarizations via the cohomology associated to the sheaf of flat sections of a pre-quantum line bundle. This model is well-adapted for real polarizations given by…

Symplectic Geometry · Mathematics 2021-08-04 Eva Miranda , Francisco Presas , Romero Solha

We propose a tomographic approach to study quantum nonlocality in continuous variable quantum systems. On one hand we derive a Bell-like inequality for measured tomograms. On the other hand, we introduce pseudospin operators whose…

Quantum Physics · Physics 2009-11-10 Stefano Mancini , Vladimir I. Man'ko , Evgeny V. Shchukin , Paolo Tombesi

The decompositions of separable Werner state, and also isotropic state, are well-known tough issues in quantum information theory, in this work we investigate them in the Bloch vector representation, exploring the symmetric informationally…

Quantum Physics · Physics 2021-08-10 Ma-Cheng Yang , Jun-Li Li , Cong-Feng Qiao

In the past decade there has been a flurry of activity at the intersection of spectral theory and symplectic geometry. In this paper we review recent results on semiclassical spectral theory for commuting Berezin-Toeplitz and…

Mathematical Physics · Physics 2013-03-12 Álvaro Pelayo

We relate the quantum Steenrod square to Seidel's equivariant pair-of-pants product for open convex symplectic manifolds that are either monotone or exact, using an equivariant version of the PSS isomorphism. We proceed similarly for…

Symplectic Geometry · Mathematics 2022-04-13 Nicholas Wilkins

A quantization scheme based on the extension of phase space with application of constrained quantization technic is considered. The obtained method is similar to the geometric quantization. For constrained systems the problem of scalar…

High Energy Physics - Theory · Physics 2009-10-30 George Jorjadze

We define and study coherent states, a Berezin-Toeplitz quantization and covariant symbols on the product between a connected simply connected nilpotent Lie group and the dual of its Lie algebra. The starting point is a Weyl system…

Functional Analysis · Mathematics 2019-05-09 M. Mantoiu

We prove approximation results about sequences of Berezin transforms of finite sums of finite product of Toeplitz operators (and bounded linear maps, in general) in the spirit of Ramadanov and Skwarczynski theorems that are about…

Complex Variables · Mathematics 2021-03-08 Nihat Gokhan Gogus , Sonmez Sahutoglu

We identify a certain universal Landau-Ginzburg model as a mirror of the big equivariant quantum cohomology of a (not necessarily compact or semipositive) toric manifold. The mirror map and the primitive form are constructed via Seidel…

Algebraic Geometry · Mathematics 2017-10-16 Hiroshi Iritani

In this work we study representations of the Poincare group defined over symplectic manifolds, deriving the Klein-Gordon and the Dirac equation in phase space. The formalism is associated with relativistic Wigner functions; the Noether…

High Energy Physics - Theory · Physics 2008-11-26 R. G. G. Amorim , M. C. B. Fernandes , F. C. Khanna , A. E. Santana , J. D. M. Vianna