Results 81 to 90 of about 5,514 (198)

Nonperturbative definition of the standard models

open access: yesPhysical Review Research, 2020
The standard models contain chiral fermions coupled to gauge theories. It has been a longstanding problem to give such gauged chiral fermion theories a quantum nonperturbative definition.
Juven Wang, Xiao-Gang Wen
doaj   +1 more source

From Moral Supervenience to Moral Contingentism (In One Easy Step!)

open access: yesAnalytic Philosophy, EarlyView.
ABSTRACT According to the Divide & Conquer (DC) strategy (Fogal and Risberg 2020) for explaining moral supervenience, the modal covariation between moral and natural properties can be partly explained by appeal to pure moral principles. Bhogal (2022) has recently argued that DC fails.
Alexios Stamatiadis‐Bréhier
wiley   +1 more source

Phases and dynamics of few fermionic impurities immersed in two-dimensional boson droplets

open access: yesPhysical Review Research
We unravel the ground state properties and emergent nonequilibrium dynamics of a mixture consisting of a few spin-polarized fermions embedded in a two-dimensional bosonic quantum droplet. For an increasingly attractive droplet-fermion interaction we find
Jose Carlos Pelayo   +3 more
doaj   +1 more source

Helically Magnetized Plasma: From Photonic Fermi‐Arc Metal to Chirality‐Free Uniaxial Medium

open access: yesNanophotonics, Volume 15, Issue 5, 16 March 2026.
A helically modulated magnetic field in magnetized plasma realizes a photonic Fermi‐arc metal, enabling full analytical tracking of Weyl node evolution. As modulation strengthens, opposing‐chirality Fermi arcs hybridize and recombine, yielding a chirality‐free uniaxial optical medium without conventional node annihilation.
Wanxia Huang   +4 more
wiley   +1 more source

A complex singlet extension of the Standard Model with a singlet fermion dark matter

open access: yesNuclear Physics B
We examine a complex singlet scalar extension of the Standard Model (CxSM) with an extra singlet fermion. Both the singlet scalar and fermion are dark matter (DM) candidates.
Gi-Chol Cho   +2 more
doaj   +1 more source

2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
A total of 473 nonmagnetic and antiferromagnetic 2D spin‐orbit coupled Dirac nodal line materials are screened, spanning 5 layer groups and 12 magnetic space groups. Furthermore, it integrates their topological properties with electride, multiferroic, and magnetic characteristics, revealing unique systems with expanded functionalities and promising ...
Weizhen Meng   +7 more
wiley   +1 more source

Constraints on dark matter annihilation to fermions and a photon

open access: yesJournal of High Energy Physics, 2018
We consider Majorana dark matter annihilation to fermion-anti-fermion pair and a photon in the effective field theory paradigm, by introducing dimension 6 and dimension 8 operators in the Lagrangian.
Debtosh Chowdhury   +2 more
doaj   +1 more source

Triplet fermions and Dirac fermions in borophene

open access: yesPhysical Review B, 2017
Borophene is a monolayer materials made of boron. A perfect planar boropehene called $ _{12}$ borophene has Dirac cones and they are well reproduced by a tight-binding model according to recent experimental and first-principles calculation results. We explicitly derive a Dirac theory for them. Dirac cones are gapless when the inversion symmetry exists,
openaire   +3 more sources

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu   +3 more
wiley   +1 more source

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