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Within the context of the twisted Poincar\'e algebra, there exists no noncommutative analogue of the Minkowski space interpreted as the homogeneous space of the Poincar\'e group quotiented by the Lorentz group. The usual definition of…

High Energy Physics - Theory · Physics 2008-11-26 M. Chaichian , P. P. Kulish , A. Tureanu , R. B. Zhang , Xiao Zhang

This work has as the main aim to explore the nature of the fermionic fields, through a classification of spinor fields about physical space of interest, such as the bulk and the compactified space $S^7$ from the supergravity theories. This…

High Energy Physics - Theory · Physics 2017-06-20 K. P. S. de Brito

The most successful "Standard Model" allows one to define the so-called "Elementary Particles". Now from another point of view, philosophical, how can we think of them? Which kind of a status can be attributed to Elementary Particles and…

History and Philosophy of Physics · Physics 2022-11-30 D-M. Cabaret , T. Grandou , G-M. Grange , E. Perrier

A general concept of potential field is introduced. The potential field that one puts in correspondence with dark matter, has fundamental geometrical interpretation (parallel transport) and has intrinsically inherent in local symmetry. The…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Ivanhoe Pestov

From the modern viewpoint and by the geometric method, this paper provides a concise foundation for the quantum theory of massless spin-3/2 field in Minkowski spacetime, which includes both the one-particle's quantum mechanics and the…

High Energy Physics - Theory · Physics 2008-11-26 Weigang Qiu , Fei Sun , Hongbao Zhang

Moving from the consideration that matter fields must be treated in terms of their fundamental quantum counterparts, we show straightforward arguments, within the framework of ordinary quantum mechanics and quantum field theory, in order to…

General Relativity and Quantum Cosmology · Physics 2016-12-28 Pietro Dona , Antonino Marciano

Massive Klein-Gordon theory is quantized on a timelike hyperplane in Minkowski space using the framework of general boundary quantum field theory. In contrast to previous work, not only the propagating sector of the phase space is…

High Energy Physics - Theory · Physics 2021-11-12 Daniele Colosi , Robert Oeckl

We revisit the representation theory of the quantum double of the universal cover of the Lorentz group in 2+1 dimensions, motivated by its role as a deformed Poincar\'e symmetry and symmetry algebra in (2+1)-dimensional quantum gravity. We…

High Energy Physics - Theory · Physics 2019-01-30 Sergio Inglima , Bernd Schroers

A modular quantum architecture is given for the space-time, particles, and fields of the Standard Model and General Relativity. It assumes a right-handed neutrino, so that based on their multiplet structure all fundamental fermions have…

Quantum Physics · Physics 2014-03-18 David Ritz Finkelstein

Lounesto's classification of spinors is a comprehensive and exhaustive algorithm that, based on the bilinears covariants, discloses the possibility of a large variety of spinors, comprising regular and singular spinors and their unexpected…

High Energy Physics - Theory · Physics 2018-02-28 L. Bonora , J. M. Hoff da Silva , R. da Rocha

Field-theoretic models for fields taking values in quantum groups are investigated. First we consider $SU_q(2)$ $\sigma$ model ($q$ real) expressed in terms of basic notions of noncommutative differential geometry. We discuss the case in…

High Energy Physics - Theory · Physics 2009-10-22 Y. Frishman , J. Lukierski , W. J. Zakrzewski

We study the implications of the ELKO fermions as a cold dark matter candidate. Such fermions arise in theories that are not symmetric under the full Lorentz group. Although they do not carry electric charge, ELKOs can still couple to…

High Energy Physics - Phenomenology · Physics 2015-10-23 Bakul Agarwal , Pankaj Jain , Subhadip Mitra , Alekha C. Nayak , Ravindra K. Verma

A general method is presented which allows one to determine from the local gauge invariant observables of a quantum field theory the underlying particle and symmetry structures appearing at the lower (ultraviolet) end of the…

High Energy Physics - Theory · Physics 2009-10-28 Detlev Buchholz

Based on the electromagnetic interaction and gravitational interaction, the quantum interplays of the ordinary matter and the dark matter in the octonion space are discussed. The paper presents the quantization of the particles of ordinary…

General Physics · Physics 2008-08-21 Zihua Weng

We analyze the framework recently proposed by Oppenheim et al. to model relativistic quantum fields coupled to relativistic, classical, stochastic fields (in particular, as a model of quantum matter coupled to ``classical gravity'').…

High Energy Physics - Theory · Physics 2025-07-28 Daniel Carney , Akira Matsumura

An ultraviolet complete particle model is constructed for the observed particles of the standard model. The quantum field theory associates infinite derivative entire functions with propagators and vertices, which make quantum loops finite…

General Physics · Physics 2023-07-18 J. W. Moffat

The description of black holes in loop quantum gravity is a hard and tricky task. In this article, we focus on a minisuperspace approach based on a polymerization procedure. We consider the resulting effective metric and study the…

General Relativity and Quantum Cosmology · Physics 2019-09-04 Flora Moulin , Killian Martineau , Julien Grain , Aurélien Barrau

The Klein-Gordon and Dirac equations in a semi-infinite lab ($x > 0$), in the background metric $\ds^2 = u^2(x) (-\dt^2 + \dx^2) + \dy^2 + \dz^2$, are investigated. The resulting equations are studied for the special case $ u(x) = 1 + g x$.…

General Relativity and Quantum Cosmology · Physics 2009-11-07 M. Khorrami , M. Alimohammadi , A. Shariati

The claim that a particle is an irreducible representation of the Poincar\'e group -- what I call \emph{Wigner's identification} -- is now, decades on from Wigner's (1939) original paper, so much a part of particle physics folklore that it…

Quantum Physics · Physics 2024-10-04 Adam Caulton

In this work we analyze complex scalar fields using a new framework where the object of noncommutativity $\theta^{\mu\nu}$ represents independent degrees of freedom. In a first quantized formalism, $\theta^{\mu\nu}$ and its canonical…

High Energy Physics - Theory · Physics 2015-05-14 Ricardo Amorim , Everton M. C. Abreu
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