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Related papers: Geometry of Quantum Spheres

200 papers

We give a complete equisingular deformation classification of simple spatial quartic surfaces which are in fact $K3$-surfaces.

Algebraic Geometry · Mathematics 2023-04-13 Çisem Güneş Aktaş

Geometric quantum mechanics aims to express the physical properties of quantum systems in terms of geometrical features preferentially selected in the space of pure states. Geometric characterisations are given here for systems of one, two,…

Quantum Physics · Physics 2007-06-13 Dorje C. Brody , Anna C. T. Gustavsson , Lane P. Hughston

We study the spectral properties of one-dimensional quantum wire with a single defect. We reveal the existence of the non-trivial topological structures in the spectral space of the system, which are behind the exotic quantum phenomena that…

Quantum Physics · Physics 2017-08-23 Taksu Cheon , Tamas Fulop , Izumi Tsutsui

We provide the full classification of equidistant decomposition of a two-dimensional Euclidean plane and a two-dimensional sphere.

Differential Geometry · Mathematics 2026-05-20 Darya Sukhorebska

We construct the q-deformed version of two four-dimensional spin foam models, the Euclidean and Lorentzian versions of the EPRL model. The q-deformed models are based on the representation theory of two copies of U_q(su(2)) at a root of…

General Relativity and Quantum Cosmology · Physics 2012-02-07 Winston J. Fairbairn , Catherine Meusburger

We study scalar field theory in one space and one time dimensions on a q-deformed space with static background. We write the Lagrangian and the equation of motion and solve it to the first order in $q-1$ where $q$ is the deformation…

High Energy Physics - Theory · Physics 2023-01-10 Poula Tadros

This survey deals with the construction of a category of spectral triples that is compatible with the Kasparov product in $KK$-theory. These notes serve as an intuitive guide to these results, avoiding the necessary technical proofs. We…

K-Theory and Homology · Mathematics 2013-04-16 Bram Mesland

The structure and properties of possible $q$-Minkowski spaces is discussed, and the corresponding non-commutative differential calculi are developed in detail and compared with already existing proposals. This is done by stressing its…

High Energy Physics - Theory · Physics 2016-08-14 J. A. de Azcárraga , P. P. Kulish , F. Rodenas

We review applications of noncommutative geometry in canonical quantum gravity. First, we show that the framework of loop quantum gravity includes natural noncommutative structures which have, hitherto, not been explored. Next, we present…

General Relativity and Quantum Cosmology · Physics 2012-03-29 Johannes Aastrup , Jesper M. Grimstrup

Given a spectral triple of compact type with a real structure in the sense of [Dabrowski L., J. Geom. Phys. 56 (2006), 86-107] (which is a modification of Connes' original definition to accommodate examples coming from quantum group theory)…

Quantum Algebra · Mathematics 2010-01-20 Debashish Goswami

The unification of general relativity with quantum theory will also require a coming together of the two quite different mathematical languages of general relativity and quantum theory, i.e., of differential geometry and functional analysis…

Mathematical Physics · Physics 2016-04-27 Mikhail Panine , Achim Kempf

Quantum algebras are a mathematical tool which provides us with a class of symmetries wider than that of Lie algebras, which are contained in the former as a special case. After a self-contained introduction to the necessary mathematical…

Nuclear Theory · Physics 2009-10-31 Dennis Bonatsos , C. Daskaloyannis

We define a $q$-deformation of the classical ring of integer-valued polynomials which we call the ring of quantum integer-valued polynomials. We show that this ring has a remarkable combinatorial structure and enjoys many positivity…

Rings and Algebras · Mathematics 2019-12-24 Nate Harman , Sam Hopkins

In this paper we numerically construct CMC deformations of the Lawson minimal surfaces $\xi_{g,1}$ using a spectral curve and a DPW approach to CMC surfaces in spaceforms.

Differential Geometry · Mathematics 2015-02-06 Sebastian Heller , Nicholas Schmitt

With recent advances in strain-engineering technology of graphene and 2D materials, graphene quantum dots (QDs) defined by the strain-induced pseudo-magnetic fields (PMFs) have been of interest, with the feasibility of tunable graphene…

Mesoscale and Nanoscale Physics · Physics 2025-11-03 Myung-Chul Jung , Nojoon Myoung

We study hyper-spheres, spheres and circles, with respect to an indefinite metric, in a tangent space on a 4-dimensional differentiable manifold. The manifold is equipped with a positive definite metric and an additional tensor structure of…

Differential Geometry · Mathematics 2023-01-11 Georgi Dzhelepov , Iva Dokuzova , Dimitar Razpopov

We define a "quantum spherical model", a quantum lattice model.

Mathematical Physics · Physics 2012-12-19 I. Lyberg

We gather material from many sources about the quantum potential and its geometric nature. The presentation is primarily expository but some new observations relating Q, V, and psi are indicated.

Mathematical Physics · Physics 2007-05-23 Robert Carroll

We show that the noncommutative differential geometry of quantum projective spaces is compatible with Rieffel's theory of compact quantum metric spaces. This amounts to a detailed investigation of the Connes metric coming from the unital…

Operator Algebras · Mathematics 2025-05-29 Max Holst Mikkelsen , Jens Kaad

We study the geometry of quartic surfaces in IP^3 that contain a line of the second kind over algebraically closed fields of characteristic different from 2,3. In particular, we correct Segre's claims made for the complex case in 1943.

Algebraic Geometry · Mathematics 2017-05-23 Slawomir Rams , Matthias Schuett