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We analyze the expansion of the fuzzy sphere non-commutative product in powers of the non-commutativity parameter. To analyze this expansion we develop a graphical technique that uses spin networks. This technique is potentially interesting…

High Energy Physics - Theory · Physics 2009-11-07 Laurent Freidel , Kirill Krasnov

We develop the description of non-commutative geometry of the 4-dimensional quantum Hall fluid's theory proposed recently by Zhang and Hu. The non-commutative structure of fuzzy $S^{4}$ appears naturally in this theory. The fuzzy monopole…

High Energy Physics - Theory · Physics 2008-11-26 Yi-Xin Chen , Bo-Yu Hou , Bo-Yuan Hou

We present a model for strongly interacting fermions with internal O(3) symmetry on the fuzzy-sphere that (i) preserves the rotational symmetry of the fuzzy sphere and (ii) undergoes a quantum phase transition in the (2+1)-dimensional O(3)…

Strongly Correlated Electrons · Physics 2026-05-26 Arjun Dey , Loic Herviou , Christopher Mudry , Andreas Martin Läuchli

We construct the relativistic fuzzy space as a non-commutative algebra of functions with purely structural and abstract coordinates being the creaction and annihilation (C/A) operators acting on a Hilbert space $\mathcal{H}_F$. Using these…

Mathematical Physics · Physics 2020-01-29 Samuel Beznák , Peter Prešnajder

Rank-three tensor model may be regarded as theory of dynamical fuzzy spaces, because a fuzzy space is defined by a three-index coefficient of the product between functions on it, f_a*f_b=C_ab^cf_c. In this paper, this previous proposal is…

High Energy Physics - Theory · Physics 2009-11-11 Naoki Sasakura

We outline a brief description of non commutative geometry and present some applications in string theory. We use the fuzzy torus as our guiding example.

High Energy Physics - Theory · Physics 2009-11-10 Daniela Bigatti

We consider the noncommutative space $\mathbb{R}^3_\lambda$, a deformation of the algebra of functions on $\mathbb{R}^3$ which yields a "foliation" of $\mathbb{R}^3$ into fuzzy spheres. We first construct a natural matrix base adapted to…

High Energy Physics - Theory · Physics 2013-04-24 Patrizia Vitale , Jean-Christophe Wallet

The phi^4 real scalar field theory on a fuzzy sphere is studied numerically. We refine the phase diagram for this model where three distinct phases are known to exist: a uniformly ordered phase, a disordered phase, and a non-uniform ordered…

High Energy Physics - Lattice · Physics 2010-04-30 Fernando García Flores , Xavier Martin , Denjoe O'Connor

We show that the classical equations of motion for a particle on three dimensional fuzzy space and on the fuzzy sphere are underpinned by a natural Lorentz geometry. From this geometric perspective, the equations of motion generally…

High Energy Physics - Theory · Physics 2019-05-14 F. G. Scholtz , P. Nandi , S. K. Pal , B. Chakraborty

Non-commutative gauge theory on fuzzy sphere was obtained by Alekseev et al. as describing the low energy dynamics of a spherical D2-brane in S^3 with the background b-field. We identify a subset of solutions of this theory which are…

High Energy Physics - Theory · Physics 2009-11-07 Koji Hashimoto , Kirill Krasnov

Noncommutative deformations of the BTZ blackholes are described by noncommutative cylinders. We study the scalar fields in this background. The spectrum is studied analytically and through numerical simulations we establish the existence of…

General Relativity and Quantum Cosmology · Physics 2015-05-30 S. Digal , T. R. Govindarajan , Kumar S. Gupta , X. Martin

We use the non-Abelian DBI action to study the dynamics of $N$ coincident $Dp$-branes in an arbitrary curved background, with the presence of a homogenous world-volume electric field. The solutions are natural extensions of those without…

High Energy Physics - Theory · Physics 2010-02-03 Steven Thomas , John Ward

In noncommutative space to maintain Bose-Einstein statistics for identical particles at the non-perturbation level described by deformed annihilation-creation operators when the state vector space of identical bosons is constructed by…

High Energy Physics - Theory · Physics 2009-11-10 Jian-zu Zhang

In this talk we will report on few results of discrete physics on the fuzzy sphere . In particular non-trivial field configurations such as monopoles and solitons are constructed on fuzzy ${\bf S}^2$ using the language of K-theory, i.e…

High Energy Physics - Theory · Physics 2009-11-07 Badis Ydri

In this paper, a new concept, the fuzzy rate of an operator in linear spaces is proposed for the very first time. Some properties and basic principles of it are studied. Fuzzy rate of an operator $B$ which is specific in a plane is…

General Mathematics · Mathematics 2021-01-05 Yijin Zhang , Honggang Li , Maoming Jin , Zongbing Lin

Using only physical mechanisms, i.e., 3D MHD with no phenomenological viscosity, we have simulated the dynamics of a moderately thin accretion disk subject to torques whose radial scaling mimics those produced by lowest-order post-Newtonian…

High Energy Astrophysical Phenomena · Physics 2015-05-06 Julian H. Krolik , John F. Hawley

We find an analytical formula for the quasicoherent states of 3D fuzzy spaces defined by algebras generated by bosonic creation and annihilation operators. This one is expressed in a representation onto the coherent states of the CCR…

Mathematical Physics · Physics 2026-04-22 David Viennot

Fuzzy sphere models conjecturally realize 3d CFTs in small systems of spinful fermions, but why they work so well is still not fully understood. Their Hamiltonians are built from electron density operators projected to the lowest Landau…

Strongly Correlated Electrons · Physics 2026-03-06 Luisa Eck , Zhenghan Wang

The nonlinear behaviour of low-viscosity warped discs is poorly understood. We verified a nonlinear bending-wave theory, in which fluid columns undergo affine transformations, with direct 3D hydrodynamical simulations. We employed a…

Earth and Planetary Astrophysics · Physics 2022-04-06 Hongping Deng , Gordon Ogilvie

Quantum field theory on two- and three-dimensional fuzzy anti-de Sitter spaces is introduced and studied. We find a complete set of solutions to the fuzzy Klein-Gordon equation and identify the commutative limit in which they reduce to…

High Energy Physics - Theory · Physics 2025-08-15 Bojana Brkić , Ilija Burić , Maja Burić , Dušan Đorđević , Duško Latas