Results 11 to 20 of about 2,610,775 (169)

Deformation Quantization by Moyal Star-Product and Stratonovich Chaos [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We make a deformation quantization by Moyal star-product on a space of functions endowed with the normalized Wick product and where Stratonovich chaos are well defined.
Rémi Léandre, Maurice Obame Nguema
doaj   +7 more sources

On the Moyal Star Product of Resurgent Series [PDF]

open access: yesAnnales de l'Institut Fourier, 2023
We analyze the Moyal star product in deformation quantization from the resurgence theory perspective. By putting algebraic conditions on Borel transforms, one can define the space of “algebro-resurgent series” (a subspace of 1 -Gevrey formal series ...
Li, Yong, Sauzin, David, Sun, Shanzhong
openaire   +5 more sources

QFT with twisted Poincaré invariance and the Moyal product [PDF]

open access: yesJournal of High Energy Physics, 2007
We study the consequences of twisting the Poincare invariance in a quantum field theory. First, we construct a Fock space compatible with the twisting and the corresponding creation and annihilation operators. Then, we show that a covariant field linear in creation and annihilation operators does not exist. Relaxing the linearity condition, a covariant
Joung, E., Mourad, J.
openaire   +5 more sources

Moyal Product and Representations of Solvable Lie Groups

open access: yesJournal of Functional Analysis, 1995
Let \(G = \text{exp}({\mathfrak g})\) be a simply connected connected solvable Lie group with Lie algebra \(\mathfrak g\). Let \({\mathcal O} = \text{Ad}^*(G)l\) be a coadjoint orbit of \(G\). Such an orbit is not simply connected in general. Pukanszky has given an explicit description of its universal covering \({\mathcal O}_0 = G/G(l)_0\), where \(G ...
Arnal, D, Cortet, J.C, Ludwig, J
openaire   +2 more sources

A Moyal type product on Hermitian symmetric spaces

open access: yesBulletin de la Classe des sciences, 1991
We suggest a construction of a Moyal type * product on Hermitian symmetric spaces ; this construction is motivated by what happens for coadjoint orbits of the Heisenberg group.
Arnal, Daniel   +3 more
openaire   +3 more sources

Phase space representation of the density operator: Bopp pseudodifferential calculus and Moyal product

open access: yesJournal of Pseudo-Differential Operators and Applications
Abstract Bopp shifts, introduced in 1956, played a pivotal role in the statistical interpretation of quantum mechanics. As demonstrated in our previous work, Bopp’s construction provides a phase-space perspective of quantum mechanics that is closely connected to the Moyal star product and its role in deformation quantization.
de Gosson, Maurice
core   +5 more sources

q -deformed star products and Moyal brackets [PDF]

open access: yesJournal of Mathematical Physics, 1998
The standard and antistandard ordered operators acting on two-dimensional q-deformed phase space are shown to satisfy algebras which can be called q−W∞. q-star products and q-Moyal brackets corresponding to these algebras are constructed. Some applications like defining q-classical mechanics and q-path integrals are discussed.
openaire   +3 more sources

A remark on polar noncommutativity

open access: yesPhysics Letters B, 2015
Noncommutative space has been found to be of use in a number of different contexts. In particular, one may use noncommutative spacetime to generate quantised gravity theories.
Andrew Iskauskas
doaj   +1 more source

On Hansen’s Version of Spectral Theory and the Moyal Product

open access: yesPublications of the Research Institute for Mathematical Sciences, 2010
The paper under review deals with the problem of a rigourous treatment of the Weyl quantization and the Moyal product. The main difficulty of extending the definition of the Moyal product from functions on \(L^2(E)\), \(E=\mathbb{R}^d\), to tempered distributions on \({\mathcal S}(\mathbb R^{2d})\), where in order to simplify the notation, \(d=1 ...
Hennings, Mark A., Dubin, Daniel A.
openaire   +3 more sources

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