Results 51 to 60 of about 14,863,289 (377)

Quantum group connections

open access: yes, 2008
The Ahtekar-Isham C*-algebra known from Loop Quantum Gravity is the algebra of continuous functions on the space of (generalized) connections with a compact structure Lie group.
Andrzej Okołów   +4 more
core   +1 more source

Quantum group covariant systems

open access: yes, 1995
The meaning of quantum group transformation properties is discussed in some detail by comparing the (co)actions of the quantum group with those of the corresponding Lie group, both of which have the same algebraic (matrix) form of the transformation ...
Chaichian, M., Kulish, P. P.
core   +1 more source

Affine Quantum Groups

open access: yes, 2006
Contribution to the Encyclopedia of Mathematical ...
Delius, G. W., MacKay, N. J.
openaire   +2 more sources

ALGEBRAIC QUANTUM PERMUTATION GROUPS [PDF]

open access: yesAsian-European Journal of Mathematics, 2008
We discuss some algebraic aspects of quantum permutation groups, working over arbitrary fields. If 𝕂 is any characteristic zero field, we show that there exists a universal cosemisimple Hopf algebra coacting on the diagonal algebra 𝕂n: this is a refinement of Wang's universality theorem for the (compact) quantum permutation group.
openaire   +4 more sources

Landau Levels and Quantum Group [PDF]

open access: yes, 1993
We find a quantum group structure in two-dimensional motions of a nonrelativistic electron in a uniform magnetic field and in a periodic potential. The representation basis of the quantum algebra is composed of wavefunctions of the system.
Sato, H. -T.
core   +1 more source

Certification of qubits in the prepare-and-measure scenario with large input alphabet and connections with the Grothendieck constant

open access: yesScientific Reports, 2023
We address the problem of testing the quantumness of two-dimensional systems in the prepare-and-measure (PM) scenario, using a large number of preparations and a large number of measurement settings, with binary outcome measurements. In this scenario, we
Péter Diviánszky   +3 more
doaj   +1 more source

The free wreath product of a compact quantum group by a quantum automorphism group [PDF]

open access: yes, 2016
Let $\mathbb{G}$ be a compact quantum group and $\mathbb{G}^{aut}(B,\psi)$ be the quantum automorphism group of a finite dimensional C*-algebra $(B,\psi)$.
Fima, Pierre, Pittau, Lorenzo
core   +1 more source

Quantum isometry groups of noncommutative manifolds associated to group C*-algebras

open access: yes, 2010
Let G be a finitely generated discrete group. The standard spectral triple on the group C*-algebra C*(G) is shown to admit the quantum group of orientation preserving isometries. This leads to new examples of compact quantum groups.
Adam Skalski   +22 more
core   +1 more source

The intertwiner spaces of non-easy group-theoretical quantum groups

open access: yes, 2020
In 2015, Raum and Weber gave a definition of group-theoretical quantum groups, a class of compact matrix quantum groups with a certain presentation as semi-direct product quantum groups, and studied the case of easy quantum groups.
Maassen, Laura
core   +1 more source

Matrix product states, projected entangled pair states, and variational renormalization group methods for quantum spin systems [PDF]

open access: yes, 2008
This article reviews recent developments in the theoretical understanding and the numerical implementation of variational renormalization group methods using matrix product states and projected entangled pair states.
F. Verstraete, V. Murg, J. Cirac
semanticscholar   +1 more source

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