Results 111 to 120 of about 202,661 (195)

Massive gravity from a first-quantized perspective

European Physical Journal C: Particles and Fields
In this work, we investigate the BRST quantization of the massive $${\mathcal {N}}=4$$ N = 4 supersymmetric spinning particle, with a twofold purpose: exploring different approaches to give mass to spinning particle models and formulating a first ...
Filippo Fecit
doaj   +1 more source

Schwinger-Dyson equation for non-Lagrangian field theory

, 2006
A method is proposed of constructing quantum correlators for a general gauge system whose classical equations of motion do not necessarily follow from the least action principle. The idea of the method is in assigning a certain BRST operator $\hat\Omega$
Alexei A Sharapov, B. DeWitt, H.M. Khudaverdian, I.A. Batalin, I.A. Batalin, J. Schwinger, M. Henneaux, P.O. Kazinski, R. Marnelius, S.L. Lyakhovich, Simon L Lyakhovich, Th. Voronov   +11 more
core   +2 more sources

Pair production of massive charged vector bosons from the worldline

Journal 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, Filippo Fecit, Alessandro Miccichè   +2 more
doaj   +1 more source

BRST quantization of quasi-symplectic manifolds and beyond

, 2003
We consider a class of \textit{factorizable} Poisson brackets which includes almost all reasonable Poisson structures. A particular case of the factorizable brackets are those associated with symplectic Lie algebroids.
A. A. Sharapov, Cannas da Silva A., Fedosov B. V., Fedosov B. V., Henneaux M., Rieffel M. A., S. L. Lyakhovich   +6 more
core   +1 more source

Equivariance, BRST and Superspace

, 1994
The structure of equivariant cohomology in non-abelian localization formulas and topological field theories is discussed. Equivariance is formulated in terms of a nilpotent BRST symmetry, and another nilpotent operator which restricts the BRST cohomology
Antti J. Niemi, Atiyah M. F., Olav Tirkkonen, Witten E.   +3 more
core   +1 more source

Local operator algebras of charged states in gauge theory and gravity

Journal of High Energy Physics
Powerful 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 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

Journal 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, Eduardo Casali, Max Guillen, Lionel Mason   +3 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, A. Dabholkar, A. Kumar, A.Y. Alekseev, C. Bachas, C. Chevalley, C. Chryssomalakos, C. Klimcík, C.-S. Chu, C.G. Callan Jr., C.G. Callan Jr., C.G. Callan Jr., D.P. Sorokin, E. Bergshoeff, E. Bergshoeff, G. Felder, I. Oda, J. de Azcárraga, J. Fuchs, J. Hughes, J. Polchinski, J.M. Maldacena, K. Kamimura, K. Skenderis, L. Baulieu, Lilia Anguelova, M. Aganagic, M. Aganagic, M. Aganagic, M. Billo, M. Cederwall, M. Cederwall, M. Cvetic, M. Hatsuda, M. Hatsuda, M. Li, M. Matone, M. Sakaguchi, M. Sakaguchi, M.B. Green, M.B. Green, M.B. Green, M.R. Douglas, N. Berkovits, N. Berkovits, N. Berkovits, N. Berkovits, N. Berkovits, N. Berkovits, N. Berkovits, N. Ishibashi, N.D. Lambert, P. Lee, P.A. Grassi, P.A. Grassi, P.A. Grassi, P.A. Grassi, P.A. Grassi, P.K. Townsend, P.S. Howe, Pietro Antonio Grassi, R. Kallosh, S. Elitzur, S. Stanciu, S. Stanciu, V. Schomerus, W. Siegel, W. Siegel   +67 more
core   +5 more sources

Classical statistical simulation of quantum field theory

Journal 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