Results 1 to 10 of about 56,631 (134)

Characterizing barren plateaus in quantum ansätze with the adjoint representation. [PDF]

open access: yesNat Commun, 2023
Variational quantum algorithms, a popular heuristic for near-term quantum computers, utilize parameterized quantum circuits which naturally express Lie groups.
Fontana E   +7 more
europepmc   +3 more sources

Multiplicity of the Adjoint Representation in Simple Quotients of the Enveloping Algebra of a Simple Lie Algebra [PDF]

open access: yesTransactions of the American Mathematical Society, 1989
Let g \mathfrak {g} be a complex simple Lie algebra, h \mathfrak {h} a Cartan subalgebra and U ( g ) U(\mathfrak {g}) the enveloping algebra of g \mathfrak {g} . We calculate for each maximal two-sided
A. Joseph
openaire   +3 more sources

The adjoint representation of a Lie algebra and the support of Kostant's weight multiplicity formula

open access: yes, 2013
Even though weight multiplicity formulas, such as Kostant's formula, exist their computational use is extremely cumbersome. In fact, even in cases when the multiplicity is well understood, the number of terms considered in Kostant's formula is factorial in the rank of the Lie algebra and the value of the partition function is unknown.
Harris, Pamela E.   +2 more
openaire   +3 more sources

Useful relations among the generators in the defining and adjoint representations of SU(N)

open access: yesSciPost Physics Lecture Notes, 2021
There are numerous relations among the generators in the defining and adjoint representations of SU(N). These include Casimir operators, formulae for traces of products of generators, etc.
Howard E. Haber
doaj   +1 more source

Euler’s difference table and the decomposition of tensor powers of the adjoint representation of the $$A_n$$ Lie algebra [PDF]

open access: yesTheoretical and mathematical physics, 2019
By using of Euler's difference table, we obtain simple explicit formula for the decomposition of $k$-th tensor power of adjoint representation of $A_n$ Lie algebra at $2 k \le{n+1}$.
A. Perelomov
semanticscholar   +1 more source

Kupershmidt-(dual-)Nijenhuis structures on a Lie algebra with a representation [PDF]

open access: yesJournal of Mathematics and Physics, 2018
In this paper, first we study infinitesimal deformations of a Lie algebra with a representation and introduce the notion of a Nijenhuis pair, which gives a trivial deformation of a Lie algebra with a representation.
Y. Hu, Jiefeng Liu, Y. Sheng
semanticscholar   +1 more source

Deformations of the three-dimensional Lie algebra sl(2)

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
Deformation is one of key questions of the structural theory of algebras over a field. Especially, it plays a important role in the classification of such algebras.
A.A. Ibrayeva   +2 more
doaj   +1 more source

Lie point symmetry infinitesimals, optimal system, power series solution, and modulational gain spectrum to the mathematical Noyes–Field model of nonlinear homogeneous oscillatory Belousov–Zhabotinsky reaction

open access: yesResults in Physics, 2023
Introduction:: The chemical oscillators are identified as open system that demonstrate periodic changes in the concentration of some reaction species as a result of intricate physico-chemical mechanisms which can lead to bi-stability, the occurrence of ...
Ebrahem A. Algehyne   +4 more
doaj   +1 more source

Geometric Theory of Heat from Souriau Lie Groups Thermodynamics and Koszul Hessian Geometry: Applications in Information Geometry for Exponential Families

open access: yesEntropy, 2016
We introduce the symplectic structure of information geometry based on Souriau’s Lie group thermodynamics model, with a covariant definition of Gibbs equilibrium via invariances through co-adjoint action of a group on its moment space, defining physical ...
Frédéric Barbaresco
doaj   +1 more source

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