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We study a modification of the Plebanski action for general relativity, which leads to a modified theory of gravity with eight degrees of freedom. We show how the action can be recasted as a bi-metric theory of gravity, and expanding around…

高能物理 - 理论 · 物理学 2011-02-28 Simone Speziale

Just like the vector bosons in Abelian and non-Abelian gauge theories, gravitons can attain mass by spontaneous local symmetry breaking. The question is whether this can happen in a Lorentz-invariant way. We consider the use of four scalar…

高能物理 - 理论 · 物理学 2008-01-07 Gerard 't Hooft

From a gauge $SU(2,2|2)$ model with broken supersymmetry, we construct an action for $SU(2)\times U(1)$ Yang-Mills theory coupled to gravity and matter. The connection components for AdS boosts and special conformal translations are…

高能物理 - 理论 · 物理学 2020-08-26 Pedro D. Alvarez , Mauricio Valenzuela , Jorge Zanelli

This article expands for spinor fields the recently developed Dynamical Bridge formalism which relates a linear dynamics in a curved space to a nonlinear dynamics in Minkowski space. Astonishingly, this leads to a new geometrical mechanism…

高能物理 - 理论 · 物理学 2015-02-17 Eduardo Bittencourt , Sofiane Faci , Mário Novello

We present a holomorphic framework in which gravity, gauge interactions, and their couplings to charges and currents emerge from a single geometric action on a four-complex-dimensional manifold. The Hermitian metric yields on the real slice…

综合物理 · 物理学 2025-11-21 John. W. Moffat , Ethan. J. Thompson

Graphene in the quantum Hall regime exhibits a multi-component structure due to the electronic spin and chirality degrees of freedom. While the applied field breaks the spin symmetry explicitly, we show that the fate of the chirality SU(2)…

介观与纳米尺度物理 · 物理学 2007-05-23 M. O. Goerbig , R. Moessner , B. Doucot

By generalizing the Hodge dual operator to the case of soldered bundles, and working in the context of the teleparallel equivalent of general relativity, an analysis of the duality symmetry in gravitation is performed. Although the basic…

广义相对论与量子宇宙学 · 物理学 2009-11-11 V. C. de Andrade , A. L. Barbosa , J. G. Pereira

We analyze the causal action principle for a system of relativistic fermions composed of massive Dirac particles and neutrinos. In the continuum limit, we obtain an effective interaction described by a left-handed, massive SU(2) gauge field…

数学物理 · 物理学 2016-05-19 Felix Finster

I found an extended duality (triality) between Dirac fermions in periodic spacetime metrics, nonrelativistic fermions in gauge fields (e.g., Harper-Hofstadter model), and in periodic scalar fields on a lattice (e.g., Aubry-Andr\'e model).…

高能物理 - 格点 · 物理学 2025-10-20 Pasquale Marra

We give a description of gravitons in terms of an SL(2,C) connection field. The gauge-theoretic Lagrangian for gravitons is simpler than the metric one. Moreover, all components of the connection field have the same sign in front of their…

高能物理 - 理论 · 物理学 2018-09-05 Gianluca Delfino , Kirill Krasnov , Carlos Scarinci

A new theory of a (flat) spacetime gravitational interaction is presented. This theory follows almost effortlessly from a new Lagrangian formulation of Maxwell's theory for photons and electrons (and positrons) whose associated Euler…

广义相对论与量子宇宙学 · 物理学 2015-04-15 Patrick L. Nash

Gravitational chiral anomaly connects the topological charge of spacetime and the chirality of fermions. It has been known that the chirality is carried by the particles (or the excited states) and also by vacuum. While the gravitational…

高能物理 - 唯象学 · 物理学 2025-06-26 Kohei Kamada , Jun'ya Kume

A model for strong, electroweak and gravitational interactions based on the local symmetry group $G=SU(3)\times SU(2)_{L}\times U(1)\times C$ where $C$ is the local conformal symmetry group is proposed. The natural minimal $G$-invariant…

高能物理 - 唯象学 · 物理学 2007-05-23 Marek Pawlowski , Ryszard Raczka

Chirality is a ubiquitous phenomenon in which a symmetry between left- and right-handed objects is broken, examples in nature ranging from subatomic particles and molecules to living organisms. In particle physics, the weak force is…

We demonstrate, by analogy with electromagnetism, that the geometric content in the theory of gravity is an indirect consequence of the fact that the gauge group in question is the Lorentz group SO(1,3). We hence construct field equations…

广义相对论与量子宇宙学 · 物理学 2012-01-24 Arpan Saha , Banibrata Mukhopadhyay

The Standard Model of electroweak interactions is shown to include a gauge theory for the observed scalar and pseudoscalar mesons. This is done by exploiting the consequences of embedding the SU(2)left X U(1) group into the chiral group of…

高能物理 - 唯象学 · 物理学 2009-10-28 B. Machet

We introduce a gauge and diffeomorphism invariant theory on the Yang-Mills phase space. The theory is well defined for an arbitrary gauge group with an invariant bilinear form, it contains only first class constraints, and the spacetime…

广义相对论与量子宇宙学 · 物理学 2009-10-22 Subenoy Chakraborty , Peter Peldan

We compute the effects of strong Hubbardlike local electronic interactions on three-dimensional four-component massless Dirac fermions, which in a noninteracting system possess a microscopic global U(1)$\otimes$SU(2) chiral symmetry. A…

强关联电子 · 物理学 2021-01-06 Andras Szabo , Bitan Roy

We provide the first evidence for a holographic correspondence between a gravitational theory in flat space and a specific unitary field theory in one dimension lower. The gravitational theory is a flat-space limit of topologically massive…

高能物理 - 理论 · 物理学 2012-10-12 Arjun Bagchi , Stephane Detournay , Daniel Grumiller

The chiral kinetic theory of Weyl fermions with collisions in the presence of weak electric and magnetic fields is derived from quantum field theories. It is found that the side-jump terms in the perturbative solution of Wigner functions…

高能物理 - 理论 · 物理学 2017-05-10 Yoshimasa Hidaka , Shi Pu , Di-Lun Yang