A. V. Stoyanovsky
We give a mathematical definition of dynamical evolution in quantum field theory, including evolution on space-like surfaces, and show its relationship with the axiomatic and perturbative approaches to QFT.
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We construct explicit deformation quantizations of the noncompact complex surfaces $Z_k := \operatorname{Tot} (\mathcal O_{\mathbb P^1} (-k))$ and describe their effect on moduli spaces of vector bundles and instanton moduli spaces. We introduce the concept of rebel instantons, as being those which react badly to some quantizations, misbehaving by shooting off extra families of noncommutative instantons. We then show that the quantum instanton moduli space can be viewed as the étale space of a constructible sheaf over the classical instanton moduli space with support on rebel instantons.
We review known results on the relations between conformal field theory, the quantization of moduli spaces of flat PSL(2,R)-connections on Riemann surfaces, and the quantum Teichmueller theory.
Yves Colin de Verdiere's quantization formalism of magnetic bottles on Riemann surfaces of non null genus is shown to be affected, owing to the Homotopy Superselection Rule, by the phenomenon of the existence of multiple inequivalent quantizations mathematically analogous to the phenomenon of the existence of multiple inequivalent prequantizations of a multiply-connected symplectic manifold in the framework of Souriau-Kostant's Geometric Quantization.
In this article we calculate the dimension of the Hilbert space of Kahler quantization of the moduli space of vortices on a Riemann surface. This dimension is given by the holomorphic Euler characteristic of the quantum line bundle.
In the framework of a mesoscopical model for dielectric media we provide an analytical description for the electromagnetic field confined in a cylindrical cavity containing a finite dielectric sample. This system is apted to simulate the electromagnetic field in a optic fiber, in which two different regions, a vacuum region and a dielectric one, appear. A complete description for the scattering basis is introduced, together with field quantization and the two-point function. Furthermore, we also determine soliton-like solutions in the dielectric, propagating in the sample of nonlinear dielectr…
Noncommutative Kahler-like structures in quantization
一个是引入了带极化的C ~*-代数的概念，它可以被看作是量子Kahler结构。这些代数与Kostant-Souriou几何量子化的连接。利用相干态方法研究了极化C*-代数的理论。
For a particle moves on a 2D surface f(x)=0 embedded in 3D Euclidean space, the geometric momentum and potential are simultaneously admissible within the Dirac canonical quantization scheme for constrained motion. In our approach, not the full scheme but the symmetries indicated by classical brackets [x,H]_{D} and [p,H]_{D} in addition to the fundamental ones [x,x]_{D}, [x,p]_{D} and [p,p]_{D} are utilized, where the subscript D stands for the Dirac bracket. The generalized centripetal force law p=[p,H]_{D} for particle on the 2D surface play the key role, and there is no simple relationship b…
Geometric quantization of the moduli space of the Self-duality equations on a Riemann surface
黎曼曲面上的自对偶方程是自对偶杨-米尔斯方程降维的结果。希钦曾表明，模空间${\mathcal M}$的解决方案的自我对偶方程的紧凑黎曼曲面属$g >1$有一个超凯勒结构。特别地，${\mathcal M}$是辛流形。在本文中，我们阐述了一个辛结构，其中的细节是失踪希钦的文件。接下来我们应用Quillen的行列式线丛构造证明了${\mathcal M}$允许一个预量子线丛。奎伦曲率被证明是成比例的辛形式上面提到的。我们用两种方法来做，其中一种有点不自然（发表在R. O. M. P.）第二种方式更自然。
A detailed Dirac's and Faddeev-Jackiw quantization of Bonzom-Livine model describing gravity in three dimensions is performed. The full structure of the constraints, the gauge transformations and the generalized Faddeev-Jackiw brackets are found. In addition, we show that the Faddeev-Jackiw and Dirac's brackets coincide to each other. Finally we discuss some remarks and prospects.
Deformation quantization of moduli spaces of Higgs bundles on a Riemann surface with translation structure
本文利用带非零全纯 1-形式的 Riemann 曲面上的平移结构，为特定秩与次数的半稳定 Higgs 丛模空间构造了非空 Zariski 开子集上的自然形变量子化。
Generalized Affine Coherent States: A Natural Framework for Quantization of Metric-like Variables
仿射变量具有保持类矩阵对象的正定性的优点，已被建议作为标准量子化方案的正则变量的替代品，特别是在量子引力的背景下。我们开发这样的变量的运动学，讨论合适的相干态，其相关的分辨率的统一性，偏振，并最终实现的相干态重叠功能在合适的路径积分公式。
The algebraic method of singular reduction is applied for non regular group action on manifolds which provides singular symplectic spaces. The problem of deformation quantization of the singular surfaces is the focus. For some examples of singular Poisson spaces the deformation quantization is explicitly constructed. In is shown that for the flat phase space with the classical moment map and the orthogonal group action the deformation quantization converges for the entire arguments of exponential type.
We propose an alternative method for Feynman path integrals on compact Riemannian manifolds. Our method employs action integrals along the shortest paths. In the case of rank 1 locally symmetric Riemannian manifolds, we prove the strong convergence of time slicing products of oscillatory integrals for low energy functions. Moreover, the strong limit includes Dewitt curvature $R/6$, where $R$ denotes the scalar curvature of a Riemannian manifold.
Geometric quantization results for semi-positive line bundles on a Riemann surface
本文探讨了Riemann面上半正线丛Bergman核展开的相关结果，包括Tian逼近定理、Toeplitz算子渐近性、随机截面零点及全纯挠渐近性。
This is the first of a series of two papers devoted to the partition function realization of Wilson surfaces in strict higher gauge theory. A higher version of the Kirillov-Kostant-Souriau theory of coadjoint orbits is presented based on the derived geometric framework, which has shown its usefulness in 4--dimensional higher Chern--Simons theory. An original notion of derived coadjoint orbit is put forward. A theory of derived unitary line bundles and Poisson structures on regular derived orbits is constructed. The proper derived counterpart of the Bohr--Sommerfeld quantization condition is th…
For particles constrained on a curved surface, how to perform quantization within Dirac's canonical quantization scheme is a long-standing problem. On one hand, Dirac stressed that the Cartesian coordinate system has fundamental importance in passing from the classical Hamiltonian to its quantum mechanical form while preserving the classical algebraic structure between positions, momenta and Hamiltonian to the extent possible. On the other, on the curved surface, we have no exact Cartesian coordinate system within intrinsic geometry. These two facts imply that the three-dimensional Euclidean s…
We consider the quasi-static problem governing the localized surface plasmon modes and permittivity eigenvalues $ε$ of smooth, arbitrarily shaped, axisymmetric inclusions. We develop an asymptotic theory for the dense part of the spectrum, i.e., close to the accumulation value $ε=-1$ at which a flat interface supports surface plasmons; in this regime, the field oscillates rapidly along the surface and decays exponentially away from it on a comparable scale. With $τ=-(ε+1)$ as the small parameter, we develop a surface-ray description of the eigenfunctions in a narrow boundary layer about the in…
Motivated by the surface of topological insulators, the Dirac anomaly's discontinuous dependence on sign of the mass, $m/|m|$, is investigated on closed topologies when mass terms are weak or only partially cover the surface. It is found that, unlike the massive Dirac theory on an infinite plane, there is a smoothly decreasing current when the mass region is not infinite; also, a massive finite region fails to exhibit a Hall current edge--exerting an extended proximity effect, which can, however, be uniformly small--and oppositely orientated Hall phases are fully quantized while accompanied by…
Combination of a construction of unambiguous quantum conditions out of the conventional one and a simultaneous quantization of the positions, momenta, angular momenta and Hamiltonian leads to the geometric potential given by the so-called thin-lay quantization.
Quantum mechanics on noncommutative Riemann surfaces
研究了在恒定磁场作用下，常曲率非对易黎曼曲面上带电粒子的量子力学。我们制定的问题，考虑量子力学上的非对易AdS_2覆盖空间和衡量一个离散的对称群，定义了一个genus-g表面。虽然覆盖空间上没有磁场量子化，但为了在黎曼曲面上具有单值态，需要量子化条件。对于非对易的AdS_2和亚临界值的磁场的频谱有一个离散的朗道水平的一部分，以及一个连续的，而超临界值，我们得到一个纯粹的非对易阶段完全由朗道水平。
Quantum States from Minimal Surfaces
本文研究量子力学系统与离散极小曲面方程的联系，并对四维空间中的三次极小曲面进行量子化，提出量子态构造方法。
Geometric quantization of integrable systems with hyperbolic singularities
利用来自可积系统的奇异实极化，构造了紧致曲面的几何量子化。这样的极化总是有奇点，我们假设是非简并型的。特别是，我们计算的效果双曲奇点，这使得一个无限维的贡献的量化，从而表明，这种量化强烈依赖于极化。
It is known that Wolf constructed a lot of examples of Super Calabi-Yau twistor spaces. We would like to introduce super Poisson structures on them via super twistor double fibrations. Moreover we define the structure of deformation quantization for such super Poisson manifolds.
Presented is a primary step towards quantization of infinitesimal rigid body moving in a two-dimensional manifold. The special stress is laid on spaces of constant curvature like the two-dimensional sphere and pseudosphere (Lobatschevski space). Also two-dimensional torus is briefly discussed as an interesting algebraic manifold.
In this paper we first show that on projective manifolds (M, ω), there are holomorphic determinant bundles (in the sense of Knusden-Mumford used by Bismut, Gillet, Soule) which play the role of the geometric quantum bundle, namely one for each input data of a Hermitian holomorphic line bundle L of non-trivial Chern class on a compact Kahler manifold Z (with Todd genus non-zero) and a choice of a geometric quantization of (M, ω). Next we further study the generalization of the vortex equations on Kahler 4-manifold which has been studied earlier by Bradlow. We show that when the Kahler 4-manifol…
We study a nonlinear stochastic heat equation forced by a space-time white noise on closed surfaces, with nonlinearity $e^{βu}$. This equation corresponds to the stochastic quantization of the Liouville quantum gravity (LQG) measure. (i) We first revisit the construction of the LQG measure in Liouville conformal field theory (LCFT) in the $L^2$ regime $0<β<\sqrt{2}$. This uniformizes in this regime the approaches of David-Kupiainen-Rhodes-Vargas (2016), David-Rhodes-Vargas (2016) and Guillarmou-Rhodes-Vargas (2019) which treated the case of a closed surface with genus 0, 1 and $> 1$ respective…
An explicit construction of a pre-quantum line bundle for the moduli space of flat G-bundles over a Riemann surface is given, where G is any non-simply connected compact simple Lie group. This work helps to explain a curious coincidence previously observed between Toledano-Laredo's work classifying central extensions of loop groups LG and the author's previous work on the obstruction to pre-quantization of the moduli space of flat G-bundles.
Strict Wick-type deformation quantization on Riemann surfaces: Rigidity and Obstructions
本文通过单值化理论研究双曲Riemann曲面上的Wick型形变量子化，揭示了拓扑障碍，并完全确定了Fréchet代数退化、非交换及强同构的条件。
We present the correspondence between Lax integrable systems with spectral parameter on a Riemann surface, and Conformal Field Theories, in quite general set-up suggested earlier by the author. This correspondence turns out to give a prequantization of the integrable systems in question.
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