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Negative solutions are possible for Einstein's Special Relativity equation, as well as Dirac's, Maxwell's, and Schrodinger's equations; and Schrodinger's equation utilizes antitime to calculate quantum probabilities. Also, since no ground…

综合物理 · 物理学 2019-10-24 Michael Byrne

We prove that the Cauchy problem for the Dirac-Klein-Gordon equations in two space dimensions is locally well-posed in a range of Sobolev spaces of negative index for the Dirac spinor, and an associated range of spaces of positive index for…

偏微分方程分析 · 数学 2007-05-23 Piero D'Ancona , Damiano Foschi , Sigmund Selberg

It is shown that the Dirac equations in general higher dimensional Kerr-NUT-de Sitter spacetimes are separated into ordinary differential equations.

高能物理 - 理论 · 物理学 2008-11-26 Takeshi Oota , Yukinori Yasui

We determine the probability that a random k-dimensional subspace of Euclidean n-space contains a positive vector.

概率论 · 数学 2010-04-06 Kent E. Morrison

The concept of Euclidean time is proposed which is dual to the usual Minkowski time. The De Sitter solution is shown to be dual to the anti-De Sitter solution under the dual transformation in which Euclidean time and Minkowski time are…

高能物理 - 唯象学 · 物理学 2007-05-23 Hirotaka Sugawara

Using 2 more time variables as the quantum hidden variables, we derive the equation of Dirac field under the principle of classical physics, then we extend our method into the quantum fields with arbitrary spin number. The spin of particle…

量子物理 · 物理学 2007-05-23 Xiaodong Chen

We present an approximate solution to the minimally coupled Einstein-Dirac equations. We interpret the solution as describing a massive fermion coexisting with its own gravitational field. The solution is axisymmetric but is time dependent.…

高能物理 - 理论 · 物理学 2011-06-28 Jianwei Mei

In this paper, we present a covariant, relativistic noncommutative algebra which includes two small deformation parameters. Using this algebra, we obtain a generalized uncertainty principle which predicts a minimal observable length in…

广义相对论与量子宇宙学 · 物理学 2013-04-18 Arman Shokrollahi

We have shown in a previous paper that the Dirac bispinor can vary like a four-vector and that Quantum Electrodynamics (QED) can be reproduced with this form of behaviour.(2) We have also shown in part I (3) of this paper, that QED with the…

量子物理 · 物理学 2007-05-23 Sarah B. M. Bell , John P. Cullerne , Bernard M. Diaz

Using closed positive extensions of the quadratic form in the potential term we provide alternative solutions to the eigenstate equation for the free quantum field Hamiltonian in the Schr\"o\-din\-ger representation. We show that admissible…

数学物理 · 物理学 2024-12-11 T. A. Bolokhov

We analyze two-dimensional large $N_c$ QCD at finite temperature and show explicitly that the free energy has the correct $N_c$ dependence.

高能物理 - 理论 · 物理学 2009-10-22 T. H. Hansson , I. Zahed

We propose and solve mathematically a simple euclidean model for quantum gravity in one dimension. In the case of an open curve, the continuum limit is trivial, that is, the size of the universe is infinite, independently of the value of…

广义相对论与量子宇宙学 · 物理学 2025-07-09 Ricardo Paszko

We generalize previous works on the Dirac eigenvalues as dynamical variables of the Euclidean gravity and N=1 D=4 supergravity to on-shell N=2 D=4 Euclidean supergravity. The covariant phase space of the theory is defined as as the space of…

高能物理 - 理论 · 物理学 2015-06-26 Ion V. Vancea

We write the Dirac equation in curved 4-dimensional Lorentzian spacetime using concepts from the analysis of partial differential equations as opposed to geometric concepts.

微分几何 · 数学 2017-12-13 Dmitri Vassiliev

A restriction was found in the mathematics of the Dirac equation for a free neutrino type of particle. The basic assumption here is the equivalence of the four variables of spacetime. A perspective is defined as a metric tensor format. We…

综合物理 · 物理学 2026-03-18 Han Geurdes

Considering a n-dimensional general spacetime, we deduce its 4-dimensional Einstein equation and Friedman equations, and discover a general dual relation between the scale factor $a(t)$ of our universe and the scale factor $B(t)$ of extra…

广义相对论与量子宇宙学 · 物理学 2015-01-20 Yong-Chang Huang , LiuJi Li

The problem of confinement of neutral fermions in two-dimensional space-time is approached with a pseudoscalar double-step potential in the Dirac equation. Bound-state solutions are obtained when the coupling is of sufficient intensity. The…

高能物理 - 理论 · 物理学 2009-11-10 Antonio S. de Castro , Wiliam G. Pereira

We present a simple gedanken experiment in which a compact object traverses a spacetime with three macroscopic spatial dimensions and $n$ compact dimensions. The compactification radius is allowed to vary, as a function of the object's…

广义相对论与量子宇宙学 · 物理学 2023-05-08 Matthew J. Lake , Shi-Dong Liang , Anucha Watcharapasorn

Here we prove the existence and uniqueness of solutions of a class of integral equations describing two Dirac particles in 1+3 dimensions with direct interactions. This class of integral equations arises naturally as a relativistic…

数学物理 · 物理学 2021-04-07 Matthias Lienert , Markus Nöth

The unique third-order invariant variational equation in three-dimensional (pseudo)Euclidean space is derived.

微分几何 · 数学 2014-07-18 Roman Matsyuk