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Using complexified quaternions, a formalism without Lorentz frames, and therefore also without vierbeins, for dealing with tensor and spinor fields in curved spacetime is presented. A local U(1) gauge symmetry, which, it is speculated,…

Mathematical Physics · Physics 2015-05-13 John Fredsted

In a previous paper we considered the most general field equations for a system of two fermions of which one single-handed, showing that the spin-torsion interactions among these spinors had the same structure of the electroweak forces…

High Energy Physics - Theory · Physics 2012-12-06 Luca Fabbri

In this paper we consider the most general field equations for a system of two fermions of which one single-handed, showing that the spin-torsion interactions among these spinors have a structure identical to that of the electroweak forces…

High Energy Physics - Theory · Physics 2011-08-09 Luca Fabbri

In this paper we consider the Dirac spinor field in interaction with a background of electrodynamics and torsion-gravity; by performing the polar reduction we acquire the possibility to introduce a new set of objects that have the…

General Physics · Physics 2019-01-14 Luca Fabbri

We study the electroweak properties of ground state octet baryons in a relativistic quark-spectator-diquark model, with light-front formalism applied to take relativistic effects into account. Our model provides a consistent picture of the…

High Energy Physics - Phenomenology · Physics 2018-04-03 Jun Zhang , Bo-Qiang Ma

In this review, three subjects are discussed: a phenomenological application of lattice predictions to $K^0$--$\bar K^0$ mixing in Super Symmetry; a discussion of the non-perturbative renormalization methods for four-fermion operators and a…

High Energy Physics - Lattice · Physics 2009-10-31 Guido Martinelli

Using complexified quaternions, an intriguing link between generators of two different and surprisingly commuting four-dimensional representations of the SU(2)xU(1) Lie group, and generators of two four-dimensional spin 1/2 representations…

Mathematical Physics · Physics 2007-12-17 John Fredsted

The formalism of quantum field theory in operator form, based on the anti self-adjoint operators of the imaginary coordinate and momentum and the self-adjoint operators of the real coordinate, momentum, energy and time, is used in…

General Physics · Physics 2024-06-05 Slobodan Prvanovic

A simple translation between a standard representation of $\mathfrak{sl}_2\mathbb{C}$ and the complex-quaternions ($\mathbb{H}\otimes_\mathbb{R}\mathbb{C}$) is established and exploited to construct a novel hyper-complex description of the…

Quantum Physics · Physics 2026-04-21 James Henry Atwater , David Lambert , Yuri Rostovtsev

Starting with the usual definitions of octonions and split octonions in terms of Zorn vector matrix realization, we have made an attempt to write the consistent form of generalized Maxwell's equations in presence of electric and magnetic…

General Physics · Physics 2011-07-08 B. C. Chanyal , P. S. Bisht , O. P. S. Negi

This article will provide the reader with a short introduction to dark spinors, which are ELKO spinors, eingenspinors of the charge conjugation operator, applied to dark matter and dark energy.

General Relativity and Quantum Cosmology · Physics 2010-02-06 Christian. G. Boehmer , James Burnett

We show that coherent optical manipulation of a single confined spin is possible even in the absence of spin-orbit coupling. To this end, we consider the non-Markovian dynamics of a single valence orbital hole spin that has optically…

Mesoscale and Nanoscale Physics · Physics 2010-05-14 Martin Claassen , Hakan E. Türeci , Atac Imamoglu

Coupling spinor fields to the gravitational field, in the setting of general relativity, is standardly done via the introduction of a vierbein field and the (associated minimal) spin connection field. This makes three types of indices…

General Relativity and Quantum Cosmology · Physics 2018-12-03 John Fredsted

We propose a setup which allows to couple the electron spin degree of freedom to the mechanical motions of a nanomechanical system not involving any of the ferromagnetic components. The proposed method employs the strain induced spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. G. Mal'shukov , C. S. Tang , C. S. Chu , K. A. Chao

Demonstrating the split octonion formalism for unified fields of dyons (electromagnetic fields) and gravito-dyons (gravito-Heavisidian fields of linear gravity), relevant field equations are derived in compact, simpler and manifestly…

High Energy Physics - Theory · Physics 2008-11-26 P. S. Bisht , Shalini Dangwal , O. P. S. Negi

By using complex quaternion, which is the system of quaternion representation extended to complex numbers, we show that the laws of electromagnetism can be expressed much more simply and concisely. We also derive the quaternion…

Classical Physics · Physics 2019-06-12 I. K. Hong , C. S. Kim

Spin Hamiltonians, like the Heisenberg model, are used to describe magnetic properties of exchange-coupled molecules and solids. For finite clusters, physical quantities such as heat capacities, magnetic susceptibilities or…

Strongly Correlated Electrons · Physics 2025-06-24 Shadan Ghassemi Tabrizi , Thomas D. Kühne

The standard spinor connection in curved space-time is represented in a compact form. In this form the calculation is complicated, and its physical effects are concealed. In this paper, we split spinor connection into two vectors…

General Relativity and Quantum Cosmology · Physics 2017-11-28 Ying-Qiu Gu

In this paper we represent the generalization of relativistic quantum mechanics on the base of eght-component values "octons", generating associative noncommutative spatial algebra. It is shown that the octonic second-order equation for the…

Mathematical Physics · Physics 2014-01-14 V. L. Mironov , S. V. Mironov

The theory of electron-phonon interaction in the presence of strong correlation has been investigated in the present work. Due to the so called spin-charge separation, it is argued that the electron-phonon interaction in the strongly…

Strongly Correlated Electrons · Physics 2011-10-17 Abolhassan Vaezi
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