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We consider a cluster variety associated to a triangulated surface without punctures. The algebra of regular functions on this cluster variety possesses a canonical vector space basis parametrized by certain measured laminations on the…

Representation Theory · Mathematics 2021-01-29 Dylan G. L. Allegretti

We present a broad family of quantum baker maps that generalize the proposal of Schack and Caves to any even Hilbert space with arbitrary boundary conditions. We identify a structure, common to all maps consisting of a simple kernel…

Chaotic Dynamics · Physics 2007-05-23 Leonardo Ermann , Marcos Saraceno

In this article, we give a definition for measured quantum groupoids. We want to get objects with duality extending both quantum groups and groupoids. We base ourselves on J. Kustermans and S. Vaes' works about locally compact quantum…

Operator Algebras · Mathematics 2007-05-23 Franck Lesieur

A complex conjugation of unitary quantum map is a second-order map (supermap) that maps a unitary operator $U$ to its complex conjugate $U^*$. First, we present a deterministic quantum protocol that universally implements the complex…

Quantum Physics · Physics 2019-09-09 Jisho Miyazaki , Akihito Soeda , Mio Murao

We construct the first examples of purely continuous, $q$-deformed Lie type locally compact quantum groups in higher rank. They arise from Drinfeld-Jimbo quantization, at unimodular deformation parameter, of the totally positive part of…

Quantum Algebra · Mathematics 2025-12-29 K. De Commer , G. Schrader , A. Shapiro , C. Voigt

Some filtrations of the tensor product of a highest weight module and a lowest weight module over quantum group $U_q(\mathfrak g)$ are constructed in \cite{LZ:2009} and one can use them to define some ideals of the modified quantized…

Quantum Algebra · Mathematics 2010-02-26 Bin Li , Hechun Zhang

The quantum Bruhat graph, which is an extension of the graph formed by covering relations in the Bruhat order, is naturally related to the quantum cohomology ring of G/B. We enhance a result of Fulton and Woodward by showing that the…

Combinatorics · Mathematics 2007-05-23 Alexander Postnikov

This work provides a quantum-computing-first derivation of the Unitary Coupled Cluster ansatz, showing that its structure emerges naturally from fermionic algebra under unitary constraints. By explicitly connecting second quantization,…

Quantum Physics · Physics 2026-04-24 Yu-Hao Chen , Renata Wong

We give an explicit description of the set of all factorization structures, or twisting maps, existing between the algebras k^2 and k^2, and classify the resulting algebras up to isomorphism. In the process we relate several different…

Rings and Algebras · Mathematics 2016-08-16 Javier López Peña , Gabriel Navarro

Using the quantum cluster algebra formalism of Fock and Goncharov, we present several forms of quantum dilogarithm identities associated with periodicities in quantum cluster algebras, namely, the tropical, universal, and local forms. We…

Quantum Algebra · Mathematics 2011-11-02 Rinat M. Kashaev , Tomoki Nakanishi

Cluster algebras were introduced by S. Fomin and A. Zelevinsky in connection with dual canonical bases. Let U be a cluster algebra of type A_n. We associate to each cluster C of U an abelian category Cat_C such that the indecomposable…

Representation Theory · Mathematics 2014-04-09 Philippe Caldero , Frederic Chapoton , Ralf Schiffler

The article primarily surveys work that followed from the formulas discovered by Avramov and Iyengar in 2008, which permit one to compute certain Hochschild homology and cohomology modules as expressions involving dualizing complexes. One…

Algebraic Geometry · Mathematics 2017-06-22 Amnon Neeman

We first compute the denominator formulas for quantum affine algebras of all exceptional types. Then we prove the isomorphisms among Grothendieck rings of categories $C_Q^{(t)}$ $(t=1,2,3)$, $\mathscr{C}_{\mathscr{Q}}^{(1)}$ and…

Representation Theory · Mathematics 2019-08-20 Se-jin Oh , Travis Scrimshaw

A proof is given that an invertible and a unitary operator can be used to reproduce the effect of a q-deformed commutator of annihilation and creation operators. In other words, the original annihilation and creation operators are mapped…

Quantum Physics · Physics 2007-05-23 Giampiero Esposito

We use category-theoretic techniques to provide two proofs showing that for a higher-rank graph $\Lambda$, its cubical (co-)homology and categorical (co-)homology groups are isomorphic in all degrees, thus answering a question of Kumjian,…

Operator Algebras · Mathematics 2019-02-12 Elizabeth Gillaspy , Jianchao Wu

Quantization of the Teichm\"uller space of a punctured Riemann surface $S$ is an approach to $3$-dimensional quantum gravity, and is a prototypical example of quantization of cluster varieties. Any simple loop $\gamma$ in $S$ gives rise to…

Geometric Topology · Mathematics 2023-04-05 Hyun Kyu Kim , Thang T. Q. Lê , Miri Son

We investigate an infinite dimensional analog of the theory of Lagrangian manifolds with complex germs. To such a manifold we assign a canonical operator that depends on creation and annihilation operators. This operator is by definition…

q-alg · Mathematics 2008-02-03 V. P. Maslov , O. Yu. Shvedov

On the base of symplectic quantum tomogram we define a probability distribution on the plane. The dual map transfers all observables which are polynomials of the position and momentum operators to the set of polynomials of two variables. In…

Quantum Physics · Physics 2015-03-17 Grigori G. Amosov , Andrey I. Dnestryan

A tagged arc on a surface is introduced by Fomin, Shapiro, and Thurston to study cluster theory on marked surfaces. Given a tagged arc system on a graded marked surface, we define its $\mathbb{Z}$-graded $\mathcal{A}_\infty$-category,…

Symplectic Geometry · Mathematics 2024-04-17 Cheol-Hyun Cho , Kyoungmo Kim

We introduce the notion of quantum duplicates of an (associative, unital) algebra, motivated by the problem of constructing toy-models for quantizations of certain configuration spaces in quantum mechanics. The proposed (algebraic) model…

Quantum Algebra · Mathematics 2014-02-26 Óscar Cortadellas , Javier López Peña , Gabriel Navarro