Search results for fermionic model

General Physics May 23, 2017

Weyl fermions exhibit paradoxical behavior

Theoretical physicists have found Weyl fermions to exhibit paradoxical behavior in contradiction to a 30-year-old fundamental theory of electromagnetism. The discovery has possible applications in spintronics. The study ...

Quantum Physics Jan 13, 2014

For the first time, researchers observe collective spin dynamics of ultra-cold fermions with large spins

Understanding collective behavior of ultra-cold quantum gases is of great interest since it is intimately related to many encountered systems in nature such as human behavior, swarms of birds, traffic jam, sand dunes, neutron ...

Condensed Matter Apr 9, 2019

Evidence of pair-density wave (PDW) in spin-valley locked systems

The isolation of graphene more than a decade ago transformed the landscape of condensed-matter physics, as the single-atom-thick, two-dimensional material exhibited high crystal and electronic quality to represent a conceptually ...

Quantum Physics Oct 11, 2022

Study makes spin liquid model more realistic

Spin is the intrinsic magnetic moment of a particle—an electron, for example. It is a fundamental magnitude, like mass and charge. Simply put, it is as if the particle had a magnet inside it that enabled it to interact, ...

General Physics Jul 22, 2019

ATLAS Experiment searches for rare Higgs boson decays into muon pairs

Could the Higgs boson still surprise us? Since its discovery in 2012, the ATLAS and CMS collaborations at CERN have been actively studying the properties of this latest and most mysterious addition to the Standard Model ...

Quantum Physics Mar 5, 2012

A traffic jam of quantum particles

(PhysOrg.com) -- German scientists discover surprising transport phenomena in ultracold quantum many body systems.

Quantum Physics Jul 2, 2020

A three-dimensional phase diagram of heavy-fermion compound with competing quantum phases

URu2Si2 is a metal that belongs to the family of heavy-fermion compounds in which several quantum phases (e.g., magnetism and superconductivity) can compete or coexist. These metals exhibit small energy scales that are easy ...

Quantum Physics Nov 6, 2017

Physicists develop a device that could provide conclusive evidence for the existence (or not) of non-Abelian anyons

What kinds of 'particles' are allowed by nature? The answer lies in the theory of quantum mechanics, which describes the microscopic world.

Condensed Matter Mar 21, 2023

Semiconductor lattice marries electrons and magnetic moments

A model system created by stacking a pair of monolayer semiconductors is giving physicists a simpler way to study confounding quantum behavior, from heavy fermions to exotic quantum phase transitions.

General Physics Sep 1, 2022

SU(N) matter is about 3 billion times colder than deep space

Japanese and U.S. physicists have used atoms about 3 billion times colder than interstellar space to open a portal to an unexplored realm of quantum magnetism.

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