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Recent experimental realization of dipolar Fermi gases near or below quantum degeneracy provides opportunity to engineer Hubbard-like models with long range interactions. Motivated by these experiments, we chart out the theoretical phase…

Quantum Gases · Physics 2012-04-10 S. G. Bhongale , L. Mathey , Shan-Wen Tsai , Charles W. Clark , Erhai Zhao

We study a warped extra-dimension scenario where the Standard Model fields lie in the bulk, with the addition of a fourth family of fermions. We concentrate on the flavor structure of the Higgs couplings with fermions in the flavor anarchy…

High Energy Physics - Phenomenology · Physics 2015-05-28 Mariana Frank , Beste Korutlu , Manuel Toharia

We call attention to that if assuming no conserved charges in the fundamental theory with fermions, which carry only a spin and interact with only the gravity, the dimensions $4, 12, 20,.....,$ as well as all odd dimensions, are excluded…

High Energy Physics - Theory · Physics 2009-11-11 Norma Susana Mankoc Borstnik , Holger Bech Nielsen

We study a lattice field theory model containing two flavors of massless staggered fermions with an onsite four-fermion interaction. The model contains a $SU(4)$ symmetry which forbids non-zero fermion bilinear mass terms, due to which…

High Energy Physics - Lattice · Physics 2015-04-08 Venkitesh Ayyar , Shailesh Chandrasekharan

A question is addressed pertinent to models of fundamental fermions in a world of high dimensions. Tex extra compactified dimensions are needed to accommodate quarks and leptons of each generation in a single spinor space carrying a…

High Energy Physics - Theory · Physics 2007-05-23 G. Roepstorff

Multifold fermions, quasiparticles with multiple degeneracy protected by crystalline symmetries, exhibit a variety of intriguing phenomena stemming from their large topological charges and unique band structures. A comprehensive…

Mesoscale and Nanoscale Physics · Physics 2025-11-21 Koki Satow , Ai Yamakage

We consider fermions propagating in the bulk of the geometry found by deforming AdS, in 5 dimensions, via the back reaction of a scalar field upon the metric. This space is AdS for r asymptotically large (in the UV) but goes through a…

High Energy Physics - Phenomenology · Physics 2015-06-18 Robert Lawrance

We propose a way to understand the 3 fermion generations by the algebraic structures of noncommutative geometry, which is a promising framework to unify the standard model and general relativity. We make the tensor product extension and the…

High Energy Physics - Theory · Physics 2018-10-30 Hefu Yu , Bo-Qiang Ma

We suggest a model which addresses both the fermion mass hierarchy problem and the family problem in two-layer warped extra dimensions. In this model, 3 family fermions in 4 dimensions (4D) generate from 1 family in two-layer warped 6D by…

High Energy Physics - Phenomenology · Physics 2009-12-10 Zhi-Qiang Guo , Bo-Qiang Ma

Unconventional fermions, such as three-fold, four-fold, six-fold, and eight-fold fermions have attracted intense attention in recent years. However, the concrete materials hosting unconventional fermions are still in urgent scarcity. In…

Materials Science · Physics 2021-01-06 Lei Jin , Ying Liu , Xiaoming Zhang , Xuefang Dai , Guodong Liu

In recent years tantalizing signs for a novel phase have been reported that is chirally symmetric but nevertheless exhibits massive bound states. The necessary condition for such a phase, referred to as Symmetric Mass Generation (SMG), is…

High Energy Physics - Lattice · Physics 2025-12-01 Anna Hasenfratz , Oliver Witzel

Carbon, the basic building block of our universe, enjoys a vast number of allotropic structures. Owing to its bonding characteristic, most carbon allotropes possess the motif of hexagonal rings. Here, with first-principles calculations, we…

Materials Science · Physics 2017-06-13 Chengyong Zhong , Yuanping Chen , Zhi-Ming Yu , Yuee Xie , Han Wang , Shengyuan A. Yang , Shengbai Zhang

We propose a new mechanism to produce a fermion mass hierarchy dynamically in a model with a singlet generation of fermions. A five dimensional gauge theory on an interval with point interactions (zero-width branes) takes responsibility for…

High Energy Physics - Theory · Physics 2018-06-27 Yukihiro Fujimoto , Takashi Miura , Kenji Nishiwaki , Makoto Sakamoto

Fermion masses can be generated through four-fermion condensates when symmetries prevent fermion bilinear condensates from forming. This less explored mechanism of fermion mass generation is responsible for making four reduced staggered…

High Energy Physics - Lattice · Physics 2016-11-23 Venkitesh Ayyar , Shailesh Chandrasekharan

Using a simple three dimensional lattice four-fermion model we argue that massless fermions can become massive due to interactions without the need for any spontaneous symmetry breaking. Using large scale Monte Carlo calculations within our…

High Energy Physics - Lattice · Physics 2016-04-27 Venkitesh Ayyar , Shailesh Chandrasekharan

Recently various phenomenological implications of the existence of extra space-time dimensions have been investigated. In this letter, we construct a model with realistic fermion mass hierarchy with (large) extra dimensions beyond the usual…

High Energy Physics - Phenomenology · Physics 2009-10-31 Koichi Yoshioka

A model is constructed for a chiral abelian gauge-interaction of fermions and a potential of three higgses, so that the potential possesses a discrete symmetry of the vacuum state, which provides the introduction of three generations for…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Kiselev

By investigating the $SU(2)$ Yang-Mills matrix model coupled to fundamental fermions in the adiabatic limit, we demonstrate quantum critical behaviour at special corners of the gauge field configuration space. The quantum scalar potential…

High Energy Physics - Theory · Physics 2020-12-09 Mahul Pandey , Sachindeo Vaidya

Domain wall fermions are defined on a lattice with an extra direction the size of which controls the chiral properties of the theory. When gauge fields are coupled to domain wall fermions the extra direction is treated as an internal flavor…

High Energy Physics - Lattice · Physics 2009-10-31 P. Vranas , I. Tziligakis , J. Kogut

We show that a system of three species of one-dimensional fermions, with an attractive three-body contact interaction, features a scale anomaly directly related to the anomaly of two-dimensional fermions with two-body forces. We show,…