Results 91 to 100 of about 7,414 (183)
Journal of the London Mathematical Society, Volume 110, Issue 5, November 2024.Abstract The aim of this paper is to prove the existence of Hadamard states for the Maxwell equations on any globally hyperbolic spacetime. This will be achieved by introducing a new gauge fixing condition, the Cauchy radiation gauge, that will allow to suppress all the unphysical degrees of freedom. The key ingredient for achieving this gauge is a new
Simone Murro, Gabriel Schmid
wiley +1 more source
Exploring T‐Duality for Self‐Dual Fields
Fortschritte der Physik, Volume 72, Issue 5, May 2024.Abstract Avatars of T‐duality within Sen's formalism for self‐dual field strengths in various dimensions are studied. This formalism is shown to naturally accommodate the T‐duality relation between Type IIA/IIB theories when compactified on a circle without the need for imposing the self‐duality constraint by hand, as is usually done. The study of this
Subhroneel Chakrabarti +1 more
wiley +1 more source
The quantum theory of Chern-Simons supergravity
Journal of High Energy Physics, 2019 We consider AdS 3 N-extended Chern-Simons supergravity (à la Achucarro-Townsend) and we study its gauge symmetries. We promote those gauge symmetries to a BRST symmetry and we perform its quantization by choosing suitable gauge-fixings.
L. Andrianopoli +3 more
doaj +1 more source
Gauge-invariant spectral description of the U (1) Higgs model from local composite operators
Journal of High Energy Physics, 2020 The spectral properties of a set of local gauge-invariant composite operators are investigated in the U(1) Higgs model quantized in the ’t Hooft R ξ gauge.
D. Dudal +6 more
doaj +1 more source
Aspects of BRST Quantization [PDF]
, 2004 Lectures presented at the summerschool `Geometry and Topology in Physics', Rot a/d/ Rot (Germany), sept.
openaire +2 more sources
BRST Cohomology and Phase Space Reduction in Deformation Quantisation
, 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
Pair production of massive charged vector bosons from the worldline
Journal of High Energy PhysicsWe 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
, 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
Local operator algebras of charged states in gauge theory and gravity
Journal of High Energy PhysicsPowerful techniques have been developed in quantum field theory that employ algebras of local operators, yet local operators cannot create physical charged states in gauge theory or physical nonzero-energy states in perturbative quantum gravity. A common
P. A. Grassi, M. Porrati
doaj +1 more source
Crossed products, conditional expectations and constraint quantization
Nuclear Physics BRecent 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