Results 21 to 30 of about 78,966 (218)

Quaternionic Quantum Field Theory [PDF]

open access: yesPhysical Review Letters, 1985
Abstract Up to this point our discussion of relativistic quaternionic wave equations has dealt with the first quantized case, in which the wave fields are quaternions in the right-acting algebra spanned by 1, i,j,k, with c-number-valued real components.
openaire   +6 more sources

Relative Quantum Field Theory [PDF]

open access: yesCommunications in Mathematical Physics, 2014
We highlight the general notion of a relative quantum field theory, which occurs in several contexts. One is in gauge theory based on a compact Lie algebra, rather than a compact Lie group. This is relevant to the maximal superconformal theory in six dimensions.
Freed, Daniel S, Teleman, Constantin
openaire   +5 more sources

Running of effective dimension and cosmological entropy in early universe

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In this paper, we suggest that the early universe starts from a high-energetic state with a two dimensional description and the state recovers to be four dimensional when the universe evolves into the radiation dominated phase.
Yong Xiao
doaj   +1 more source

Quantum Field Theory Representation in Quantum Computation

open access: yesApplied Sciences, 2021
Recently, from the deduction of the result MIP* = RE in quantum computation, it was obtained that Quantum Field Theory (QFT) allows for different forms of computation in quantum computers that Quantum Mechanics (QM) does not allow. Thus, there must exist
Nicolás Lori   +2 more
doaj   +1 more source

PERTURBATIVE QUANTUM FIELD THEORY [PDF]

open access: yesChallenges for the 21st Century, 2001
This talk introduces perturbative quantum field on a heuristic level. It is directed at an audience familiar with elements of quantum mechanics, but not necessarily with high energy physics. It includes a discussion of the strategies behind experimental tests of fundamental theories, and of the field theory interpretations of these tests.
openaire   +4 more sources

Quantum field theory for discrepancies [PDF]

open access: yesNuclear Physics B, 1998
26 ...
Ronald Kleiss, A. van Hameren
openaire   +4 more sources

On Bethe vectors in gl3 $$ \mathfrak{g}{\mathfrak{l}}_3 $$-invariant integrable models

open access: yesJournal of High Energy Physics, 2018
We consider quantum integrable models solvable by the nested algebraic Bethe ansatz and possessing gl3 $$ \mathfrak{g}{\mathfrak{l}}_3 $$-invariant R-matrix.
A. Liashyk, N. A. Slavnov
doaj   +1 more source

QUANTUM FIELD THEORY IN GRAPHENE [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2012
This is a short non-technical introduction to applications of the Quantum Field Theory methods to graphene. We derive the Dirac model from the tight binding model and describe calculations of the polarization operator (conductivity). Later on, we use this quantity to describe the Quantum Hall Effect, light absorption by graphene, the Faraday effect ...
Ignat Fialkovsky, Dmitri Vassilevich
openaire   +5 more sources

Quantum field theory

open access: yesReviews of Modern Physics, 1999
I discuss the general principles underlying quantum field theory, and attempt to identify its most profound consequences. The deepest of these consequences result from the infinite number of degrees of freedom invoked to implement locality. I mention a few of its most striking successes, both achieved and prospective.
openaire   +3 more sources

Quantum Field Theory in Categorical Quantum Mechanics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
We use tools from non-standard analysis to formulate the building blocks of quantum field theory within the framework of categorical quantum mechanics.
Stefano Gogioso, Fabrizio Genovese
doaj   +1 more source

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