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A set of $n$ coherent states is introduced in a quantum system with $d$-dimensional Hilbert space $H(d)$. It is shown that they resolve the identity, and also have a discrete isotropy property. A finite cyclic group acts on the set of these…

Quantum Physics · Physics 2023-11-20 A. Vourdas

The notion of normal quantum subgroup introduced in algebraic context by Parshall and Wang when applied to compact quantum groups is shown to be equivalent to the notion of normal quantum subgroup introduced by the author. As applications,…

Quantum Algebra · Mathematics 2013-09-30 Shuzhou Wang

The aim of this paper is to present a general algebraic formulation for the Decoherence-Free Subspaces (DFSs). For this purpose, we initially generalize some results of Pauli and Artin about semisimple algebras. Then we derive orthogonality…

Mathematical Physics · Physics 2015-11-16 Marco A. S. Trindade , E. Pinto , J. D. M. Vianna

The algebraic formulation of the quantum group gauge models in the framework of the $R$-matrix approach to the theory of quantum groups is given. We consider gauge groups taking values in the quantum groups and noncommutative gauge fields…

High Energy Physics - Theory · Physics 2009-10-22 A. P. Isaev , Z. Popowicz

The classical $r$-matrix for $N=1$ superPoincar{\'e} algebra, given by Lukierski, Nowicki and Sobczyk is used to describe the graded Poisson structure on the $N=1$ Poincar{\'e} supergroup. The standard correspondence principle between the…

High Energy Physics - Theory · Physics 2019-08-15 P. Kosi{ń}ski , J. Lukierski , P. Ma{ś}lanka , J. Sobczyk

By using certain quantum differential operators, we construct a super representation for the quantum queer supergroup U_v(q_n). The underlying space of this representation is a deformed polynomial superalgebra in 2n^2 variables whose…

Quantum Algebra · Mathematics 2020-11-02 Jie Du , Yanan Lin , Zhongguo Zhou

We define the universal quantum group $\mathcal{H}$ that preserves a pair of Hopf comodule maps, whose underlying vector space maps are preregular forms defined on dual vector spaces. This generalizes the construction of Bichon and…

Quantum Algebra · Mathematics 2017-05-25 Alexandru Chirvasitu , Chelsea Walton , Xingting Wang

This article shows that one can consistently incorporate nonunitary representations of at least one group into the ``ordinary'' nonrelativistic quantum mechanics. This group turns out to be Lorentz group thus giving us an alternative…

High Energy Physics - Theory · Physics 2007-05-23 Bojan Bistrovic

In this paper we provide a general condition for the reducibility of the Reshetikhin-Turaev quantum representations of the mapping class groups. Namely, for any modular tensor category with a special symmetric Frobenius algebra with a…

Quantum Algebra · Mathematics 2008-06-17 Jørgen Ellegaard Andersen , Jens Fjelstad

The two-parametric quantum superalgebra $U_{pq}[gl(2/2)]$ and its representations are considered. All finite-dimensional irreducible representations of this quantum superalgebra can be constructed and classified into typical and nontypical…

Quantum Algebra · Mathematics 2008-11-26 Nguyen Anh Ky

An algorithm is presented allowing the construction of fast Fourier transforms for any solvable group on a classical computer. The special structure of the recursion formula being the core of this algorithm makes it a good starting point to…

Quantum Physics · Physics 2023-11-27 Markus Pueschel , Martin Roetteler , Thomas Beth

The universal enveloping algebra U(g) of a Lie algebra g acts on its representation ring R through D(R), the ring of differential operators on R. A quantised universal enveloping algebra (or "quantum group") is a deformation of a universal…

Quantum Algebra · Mathematics 2007-05-23 Uma N. Iyer , Timothy C. McCune

The quantum integrable systems associated with the quantum loop algebras $\mathrm U_q(\mathcal L(\mathfrak{sl}_{\, l + 1}))$ are considered. The factorized form of the transfer operators related to the infinite dimensional evaluation…

Mathematical Physics · Physics 2021-08-25 A. V. Razumov

Quantum real numbers are proposed by performing a quantum deformation of the standard real numbers $\R$. We start with the q-deformed Heisenberg algebra $\cLLq$ which is obtained by the Moyal $\ast$-deformation of the Heisenberg algebra…

High Energy Physics - Theory · Physics 2007-05-23 Takashi Suzuki

An explicit realization of the W(2,2) Lie algebra is presented using the famous bosonic and fermionic oscillators in physics, which is then used to construct the q-deformation of this Lie algebra. Furthermore, the quantum group structures…

Mathematical Physics · Physics 2012-05-01 Lamei Yuan

We construct quantum deformation of Poincar\'e group using as a starting point $SU(2,2)$ conformal group and twistor-like definition of the Minkowski space. We obtain quantum deformation of $SU(2,2)$ as a real form of multiparametric…

High Energy Physics - Theory · Physics 2007-05-23 M. Chaichian , A. P. Demichev

We give a self-contained introduction to the physics of ultracold atoms using functional integral techniques. Based on a consideration of the relevant length scales, we derive the universal effective low energy Hamiltonian describing…

Quantum Gases · Physics 2012-09-26 Igor Boettcher , Jan M. Pawlowski , Sebastian Diehl

We present explicit formulas for deformation quantization on the co-adjoint orbits of the real diamond Lie group. From this we obtain quantum half-plans, quantum hyperbolic cylinders, quantum hyperbolic paraboloids via Fedosov deformation…

Quantum Algebra · Mathematics 2007-05-23 Nguyen Viet Hai

These notes summarise a talk surveying the combinatorial or Hamiltonian quantisation of three dimensional gravity in the Chern-Simons formulation, with an emphasis on the role of quantum groups and on the way the various physical constants…

General Relativity and Quantum Cosmology · Physics 2011-05-20 Bernd J Schroers

We construct central elements of the degenerate quantum general linear group introduced by Cheng, Wang and Zhang. In particular, we give an explicit formula for the quantum Casimir element. Our method is based on the explicit $L$ operators.…

Quantum Algebra · Mathematics 2025-10-08 Hengyun Yang , Yang Zhang