Results 11 to 20 of about 2,207,478 (329)

Noncommutative field theory [PDF]

open access: yesReviews of Modern Physics, 2001
We review the generalization of field theory to space-time with noncommuting coordinates, starting with the basics and covering most of the active directions of research. Such theories are now known to emerge from limits of M theory and string theory, and to describe quantum Hall states.
Douglas, Michael R., Nekrasov, Nikita A.
openaire   +2 more sources

Minimal supergeometric quantum field theories

open access: yesPhysics Letters B, 2023
We formulate minimal SuperGeometric Quantum Field Theories (SG-QFTs) that allow for scalar-fermion field transformations in a manifestly reparameterisation covariant manner.
Viola Gattus, Apostolos Pilaftsis
doaj   +1 more source

Manifestly SL(2, R) Duality-Symmetric Forms in ModMax Theory

open access: yesJournal of High Energy Physics, 2022
In this paper, we will investigate a manifestly SL(2, R)-invariant structure for the energy-momentum tensor of ModMax theory as a nonlinear modification of Maxwell electrodynamics which includes conformal invariance as well. In the context of this theory,
H. Babaei-Aghbolagh   +3 more
doaj   +1 more source

Renormalons in integrable field theories

open access: yesJournal of High Energy Physics, 2020
In integrable field theories in two dimensions, the Bethe ansatz can be used to compute exactly the ground state energy in the presence of an external field coupled to a conserved charge.
Marcos Mariño, Tomás Reis
doaj   +1 more source

Field Theories for type-II fractons

open access: yesSciPost Physics, 2022
We derive an effective field theory for a type-II fracton starting from the Haah code on the lattice. The effective topological theory is not given exclusively in terms of an action; it must be supplemented with a condition that selects physical ...
Weslei B. Fontana, Pedro R. S. Gomes, Claudio Chamon
doaj   +1 more source

FROM EUCLIDEAN FIELD THEORY TO QUANTUM FIELD THEORY [PDF]

open access: yesReviews in Mathematical Physics, 1999
In order to construct examples for interacting quantum field theory models, the methods of Euclidean field theory turned out to be powerful tools since they make use of the techniques of classical statistical mechanics. Starting from an appropriate set of Euclidean n-point functions (Schwinger distributions), a Wightman theory can be reconstructed by
openaire   +2 more sources

QUANTUM FIELD THEORIES [PDF]

open access: yesInternational Journal of Modern Physics A, 2005
The scope of this review is to give a pedagogical introduction to some new calculations and methods developed by the author in the context of quantum groups and their applications. The review is self-contained and serves as a "first aid kit" before one ventures into the beautiful but bewildering landscape of Woronowicz's theory.
openaire   +1 more source

Double field theory [PDF]

open access: yesJournal of High Energy Physics, 2009
The zero modes of closed strings on a torus --the torus coordinates plus dual coordinates conjugate to winding number-- parameterize a doubled torus. In closed string field theory, the string field depends on all zero-modes and so can be expanded to give an infinite set of fields on the doubled torus.
Hull, Chris, Zwiebach, Barton
openaire   +5 more sources

Generalized Toda Field Theories [PDF]

open access: yes, 1995
In this paper we introduce a unified approach to Toda field theories which allows us to formulate the classes of $A_n$, $B_n$ and $C_n$ models as unique models involving an arbitrary continuous parameter $\nu$.
Aoki   +38 more
core   +3 more sources

Biharmonic Conformal Field Theories [PDF]

open access: yes, 1995
The main result of this paper is the construction of a conformally covariant operator in two dimensions acting on scalar fields and containing fourth order derivatives. In this way it is possible to derive a class of Lagrangians invariant under conformal
Ambjorn   +22 more
core   +2 more sources

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