Results 41 to 50 of about 73,600 (167)

From quantum field theory to quantum mechanics

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The purpose of this article is to construct an explicit relation between the field operators in Quantum Field Theory and the relevant operators in Quantum Mechanics for a system of N identical particles, which are the symmetrised functions of the ...
Nuno Barros e Sá, Cláudio Gomes
doaj   +1 more source

Critical 1- and 2-point spin correlations for the O(2) model in 3d bounded domains

open access: yesJournal of High Energy Physics, 2021
We study the critical properties of the 3d O(2) universality class in bounded domains through Monte Carlo simulations of the clock model. We use an improved version of the latter, chosen to minimize finite-size corrections at criticality, with 8 ...
Alessandro Galvani   +2 more
doaj   +1 more source

A Quantum field theory of dyons [PDF]

open access: yesProceedings of Quantum aspects of gauge theories, supersymmetry and unification — PoS(tmr99), 2000
We construct a classical field theory action which upon quantization via the functional integral approach, gives rise to a consistent Dirac-string independent quantum field theory. The approach entails a systematic derivation of the correlators of all gauge invariant observables, and also of charged dyonic fields.
openaire   +3 more sources

Quantum entanglement of ions for light dark matter detection

open access: yesJournal of High Energy Physics
A detection scheme is explored for light dark matter, such as axion dark matter or dark photon dark matter, using a Paul ion trap system. We first demonstrate that a qubit, constructed from the ground and first excited states of vibrational modes of ions
Asuka Ito   +3 more
doaj   +1 more source

Finslerian quantum field theory [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2005
Invited plenary lecture at the Fourth World Congress of Nonlinear Analysts in the session: Applications of Finsler Differential Geometry (in Engineering, Physics and Biology), July 5, 2004, Orlando ...
openaire   +2 more sources

Symmetry fractionalized (irrationalized) fusion rules and two domain-wall Verlinde formulae

open access: yesJournal of High Energy Physics
We investigate the composite systems consisting of topological orders separated by gapped domain walls. We derive a pair of domain-wall Verlinde formulae, that elucidate the connection between the braiding of interdomain excitations labeled by pairs of ...
Yu Zhao   +3 more
doaj   +1 more source

Jets and quantum field theory [PDF]

open access: yesPhysics Letters B, 1996
We discuss quantum-field-theoretic interpretation of the family of observables (the so-called C-algebra) introduced in [ F.V.Tkachov: Preprint FERMILAB-PUB-95/191-T] for a systematic description of multijet structure of multiparticle final states at high energies.
Sveshnikov, N. A., Tkachov, F. V.
openaire   +2 more sources

Lepton flavor violating decays lj → liγγ

open access: yesNuclear Physics B
In this paper, we study the lepton flavor violating decays of the lj→liγγ (j=2, 3; i=1, 2) processes under the U(1)XSSM. The U(1)XSSM is the addition of three singlet new Higgs superfields and right-handed neutrinos to the minimal supersymmetric standard
Ming-Yue Liu   +7 more
doaj   +1 more source

Nonlinear symmetry-fragmentation of nonabelian anyons in symmetry-enriched topological phases: a string-net model realization

open access: yesJournal of High Energy Physics
Symmetry-enriched topological (SET) phases combine intrinsic topological order with global symmetries, giving rise to novel symmetry phenomena. While SET phases with Abelian anyons are relatively well understood, those involving nonabelian anyons remain ...
Nianrui Fu   +3 more
doaj   +1 more source

Towards Quantum Field Theory in Categorical Quantum Mechanics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
In this work, we use tools from non-standard analysis to introduce infinite-dimensional quantum systems and quantum fields within the framework of Categorical Quantum Mechanics.
Stefano Gogioso, Fabrizio Genovese
doaj   +1 more source

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