Results 71 to 80 of about 217,019 (271)

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

Shallow trimers of two identical fermions and one particle in resonant regimes

open access: yesSciPost Physics, 2022
We consider two identical fermions interacting in the p-wave channel. Each fermion also interacts with another particle in the vicinity of an s-wave resonance.
Pascal Naidon, Ludovic Pricoupenko, Christiane Schmickler
doaj   +1 more source

Low energy effective action of domain-wall fermion and the Ginsparg-Wilson relation [PDF]

open access: yes, 1999
We derive the effective action of the light fermion field of the domain-wall fermion, which is referred as $q(x)$ by Furman and Shamir. The inverse of the effective Dirac operator turns out to be identical to the inverse of the truncated overlap Dirac ...
Furman   +12 more
core   +2 more sources

Role of Majorana fermions in spin transport of anisotropic Kitaev model [PDF]

open access: green, 2021
Hirokazu Taguchi   +3 more
openalex   +1 more source

A Perspective on Interactive Theorem Provers in Physics

open access: yesAdvanced Science, EarlyView.
Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley   +1 more source

Fermion Bags and A New Origin for a Fermion Mass [PDF]

open access: yes, 2014
The fermion bag is a powerful idea that helps to solve fermion lattice field theories using Monte Carlo methods. Some sign problems that had remained unsolved earlier can be solved within this framework.
Chandrasekharan, Shailesh
core   +1 more source

Carroll Fermions

open access: yesProceedings of Corfu Summer Institute 2023 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2023)
Using carefully chosen projections, we consider different Carroll limits of relativistic Dirac fermions in any spacetime dimensions. These limits define Carroll fermions of two types: electric and magnetic. The latter type transforms as a reducible but indecomposable representation of the Carroll group.
Eric A. Bergshoeff   +4 more
openaire   +5 more sources

The Interplay of Magnetic Order with the Electronic Scattering and Crystal‐Field Effects in a Metallic Ferromagnet

open access: yesAdvanced Science, EarlyView.
The interplay between magnetic ordering and crystal electric field (CEF) excitations plays a pivotal role in defining the low‐energy electrodynamics of quantum materials. By probing the temperature‐dependent THz conductivity in a rare‐earth‐based metallic ferromagnet, we uncover a microscopic connection between localized and itinerant electrons ...
Payel Shee   +11 more
wiley   +1 more source

Semiconducting THO‐C3N Monolayers for Ultrahigh Anisotropic Carrier Mobility

open access: yesAdvanced Science, EarlyView.
A precise site‐specific N‐doping strategy that drives a secondary electronic transition in net W is proposed, enabling the electronic properties transition from metal to Dirac semimetal and ultimately to semiconductor. The obtained THO‐C3N‐2 and THO‐C3N‐3 semiconductors exhibit high carrier mobilities and pronounced mobility anisotropy, with THO‐C3N‐2 ...
Rui Tan   +7 more
wiley   +1 more source

Probing axion mediated fermion–fermion interaction by means of entanglement

open access: yesPhysics Letters B, 2020
We propose a new approach in the investigation and detection of axion and axion–like particles based on the study of the entanglement for two interacting fermions.
A. Capolupo   +3 more
doaj   +1 more source

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