Results 81 to 90 of about 16,231 (186)

Deformation Quantization of Poisson Structures Associated to Lie Algebroids

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
In the present paper we explicitly construct deformation quantizations of certain Poisson structures on E*, where E → M is a Lie algebroid. Although the considered Poisson structures in general are far from being regular or even symplectic, our ...
Nikolai Neumaier, Stefan Waldmann
doaj   +1 more source

PBW Basis of Quantized Universal Enveloping Algebras

open access: yesPublications of the Research Institute for Mathematical Sciences, 1994
Let \(U_ q= U_ q({\mathfrak g})\) be the quantized universal enveloping algebra of the Lie algebra \({\mathfrak g}\) and \(U_ q^ +\) (resp. \(U_ q^ -\)) be the subalgebra generated by \(e_ i\)'s (resp. \(f_ i\)'s). \textit{G. Lusztig} constructed, by using his PBW base, the canonical base of \(U_ q^ -\) in the case \({\mathfrak g}\) is a finite ...
openaire   +2 more sources

Universal enveloping algebras of differential graded Poisson algebras

open access: yes, 2014
37 pages, the abstract is rewritten, another construction of the universal enveloping algebra is given and several typos are ...
Lü, Jiafeng   +2 more
openaire   +2 more sources

From Quantum AN to E8 Trigonometric Model: Space-of-Orbits View

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
A number of affine-Weyl-invariant integrable and exactly-solvable quantum models with trigonometric potentials is considered in the space of invariants (the space of orbits).
Alexander V. Turbiner
doaj   +1 more source

Crystalizing theq-analogue of universal enveloping algebras

open access: yesCommunications in Mathematical Physics, 1990
Let \(U_ q\) denote the quantized enveloping algebra over \({\mathbb{Q}}(q)\) associated to a symmetrizable Kac-Moody algebra \({\mathfrak g}\). For any integrable \(U_ q\)-module M the author defines a crystal base for M to be a pair (L,B) consisting of a lattice L of M and a \({\mathbb{Q}}\)-basis B of L/qL with certain nice properties.
openaire   +3 more sources

SU_2 Nonstandard Bases: Case of Mutually Unbiased Bases

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
This paper deals with bases in a finite-dimensionalHilbert space. Such a~space can be realized as a subspace of therepresentation space of SU$_2$ corresponding to an irreduciblerepresentation of SU$_2$.
Olivier Albouy, Maurice R. Kibler
doaj  

Highly Entangled Stationary States from Strong Symmetries

open access: yesPhysical Review X
We find that the presence of strong non-Abelian symmetries can lead to highly entangled stationary states even for unital quantum channels. We derive exact expressions for the bipartite logarithmic negativity, Rényi negativities, and operator space ...
Yahui Li   +3 more
doaj   +1 more source

Universal enveloping algebras for Malcev color algebras

open access: yes, 2015
In this paper we give a construction of the universal enveloping algebra of a Malcev algebra in categories of group algebra comodules with a symmetry given by a bicharacter of the group. A particular example of such categories is the category of super vector spaces.
openaire   +2 more sources

Cayley-Klein Lie Algebras and Their Quantum Universal Enveloping Algebras

open access: yes, 1994
7 pages, AMS-TEX file, UVA/93 ...
Ballesteros, A.   +3 more
openaire   +2 more sources

On Uq (sl2)-actions on the Quantum Plane

open access: yesActa Polytechnica, 2010
To give the complete list of Uq (sl2)-actions of the quantum plane, we first obtain the structure of quantum plane automorphisms. Then we introduce some special symbolic matrices to classify the series of actions using the weights.
S. Duplij, S. Sinel’shchikov
doaj  

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