Results 21 to 30 of about 2,207,478 (329)

Twin conformal field theories

open access: yesJournal of High Energy Physics, 2019
Supersymmetric theories with the same bosonic content but different fermions, aka twins, were thought to exist only for supergravity. Here we show that pairs of super conformal field theories, for example exotic N $$ \mathcal{N} $$ = 3 and N $$ \mathcal ...
L. Borsten, M. J. Duff, A. Marrani
doaj   +1 more source

Anomalies in quantum field theories

open access: yesVojnotehnički Glasnik, 2023
Introduction/purpose: Noether’s theorem connects symmetry of the Lagrangian to conserved quantities. Quantum effects cancel the conserved quantities. Methods: Triangle diagram, Path integral, Pauli-Villars regularisation. Results: Quantum effects that
Nicola Fabiano
doaj   +1 more source

Reductions of exceptional field theories

open access: yesJournal of High Energy Physics, 2020
Double Field Theory (DFT) and Exceptional Field Theory (EFT), collectively called ExFTs, have proven to be a remarkably powerful new framework for string and M-theory.
David S. Berman, Ray Otsuki
doaj   +1 more source

Holographic Effective Field Theories [PDF]

open access: yes, 2016
We derive the four-dimensional low-energy effective field theory governing the moduli space of strongly coupled superconformal quiver gauge theories associated with D3-branes at Calabi-Yau conical singularities in the holographic regime of validity.
Martucci, Luca, Zaffaroni, Alberto
core   +1 more source

Quantum quench and thermalization to GGE in arbitrary dimensions and the odd-even effect

open access: yesJournal of High Energy Physics, 2020
In many quantum quench experiments involving cold atom systems the post-quench phase can be described by a quantum field theory of free scalars or fermions, typically in a box or in an external potential.
Parijat Banerjee   +3 more
doaj   +1 more source

Noncommutative Quantum Field Theories [PDF]

open access: yes, 2003
We start by reviewing the formulation of noncommutative quantum mechanics as a constrained system. Then, we address to the problem of field theories defined on a noncommutative space-time manifold.
Girotti, H. O.
core   +4 more sources

Renormalizing Open Quantum Field Theories

open access: yesUniverse, 2022
The functional renormalization group flow of a scalar field theory with quartic couplings and a sharp spatial momentum cutoff is presented in four-dimensional Minkowski space-time for the bare action by retaining the entanglement of the IR and the UV ...
Sandor Nagy, Janos Polonyi
doaj   +1 more source

Balanced Topological Field Theories [PDF]

open access: yes, 1996
We describe a class of topological field theories called ``balanced topological field theories.'' These theories are associated to moduli problems with vanishing virtual dimension and calculate the Euler character of various moduli spaces.
Dijkgraaf, R., Moore, G.
core   +3 more sources

Superstring field theory

open access: yesNuclear Physics B, 1984
Abstract Superstring field theories are formulated in terms of light-cone-gauge superfields that are functionals of string coordinates x ( σ ) and ϑ ( σ ). The formalism used preserves only the manifest SU(4) symmetry that corresponds to rotations among six of the eight transverse directions.
Michael B. GREEN, John H. SCHWARZ
openaire   +1 more source

Detectors in weakly-coupled field theories

open access: yesJournal of High Energy Physics, 2023
We initiate a study of asymptotic detector operators in weakly-coupled field theories. These operators describe measurements that can be performed at future null infinity in a collider experiment.
Simon Caron-Huot   +4 more
doaj   +1 more source

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