Results 101 to 110 of about 7,720 (196)

Crossed products, conditional expectations and constraint quantization

open access: yesNuclear Physics B
Recent work has highlighted the importance of crossed products in correctly elucidating the operator algebraic approach to quantum field theories. In the gravitational context, the crossed product simultaneously promotes von Neumann algebras associated ...
Marc S. Klinger, Robert G. Leigh
doaj   +1 more source

Notes on the D = 11 pure spinor superparticle

open access: yesJournal of High Energy Physics, 2019
The D = 11 pure spinor superparticle has been shown to describe linearized D = 11supergravityinamanifestlycovariantway. Anumberofauthorshaveproposedthat its correlation functions be used to compute amplitudes.
Nathan Berkovits   +3 more
doaj   +1 more source

Classical statistical simulation of quantum field theory

open access: yesJournal of High Energy Physics
We propose a procedure of computing the n-point function in perturbation theory of the quantum field theory as the average over the complex Gaussian noises in a classical theory.
Takayuki Hirayama
doaj   +1 more source

Simplified D = 11 pure spinor b ghost

open access: yesJournal of High Energy Physics, 2017
A b-ghost was constructed for the D = 11 non-minimal pure spinor superparticle by requiring that {Q, b} = T where Q = Λ α D α + R α W ¯ α $$ Q={\Lambda}^{\alpha }{D}_{\alpha }+{R}^{\alpha }{\overline{W}}_{\alpha } $$ is the usual non-minimal pure spinor ...
Nathan Berkovits, Max Guillen
doaj   +1 more source

Pair production of massive charged vector bosons from the worldline

open access: yesJournal of High Energy Physics
We investigate a worldline formulation for a massive spin-1 particle interacting with an electromagnetic background. Two first-quantized descriptions of the spin degrees of freedom are considered: one based on bosonic oscillators and the other on ...
Fiorenzo Bastianelli   +2 more
doaj   +1 more source

Super D-branes from BRST Symmetry

open access: yes, 2003
Recently a new formalism has been developed for the covariant quantization of superstrings. We study properties of Dp-branes and p-branes in this new framework, focusing on two different topics: effective actions and boundary states for Dp-branes.
A. Achucarro   +67 more
core   +5 more sources

On BRST-related symmetries in the FLPR model with Gribov ambiguities

open access: yesNuclear Physics B
With the recent revival of interest in the FLPR model, novel features have been reported in the literature. A connection between those new feautures and QCD, involving the Gribov problem, is explored.
Bhabani Prasad Mandal   +2 more
doaj   +1 more source

BRST Cohomology and Phase Space Reduction in Deformation Quantisation

open access: yes, 1999
In this article we consider quantum phase space reduction when zero is a regular value of the momentum map. By analogy with the classical case we define the BRST cohomology in the framework of deformation quantization.
Bordemann, Martin   +2 more
core   +3 more sources

Finite BRST-BFV transformations for dynamical systems with second-class constraints

open access: yes, 2015
We study finite field dependent BRST-BFV transformations for dynamical systems with first- and second-class constraints within the generalized Hamiltonian formalism.
Batalin, Igor A.   +2 more
core   +1 more source

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