Pfaffian Formula for Fermion Parity Fluctuations in a Superconductor and Application to Majorana Fusion Detection
Sign Up to like & getrecommendations! Published in 2019 at "Annalen der Physik"
DOI: 10.1002/andp.201900129
Abstract: Kitaev's Pfaffian formula equates the ground-state fermion parity of a closed system to the sign of the Pfaffian of the Hamiltonian in the Majorana basis. Using Klich's theory of full counting statistics for paired fermions… read more here.
Keywords: fermion; fermion parity; majorana; pfaffian formula ... See more keywords
Radiative origin of fermion mass hierarchy in left-right symmetric theory
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2025)082
Abstract: Despite the remarkable success of the Standard Model, the hierarchy and patterns of fermion masses and mixings remain a profound mystery. To address this, we propose a model employing the rank mechanism, where the originally… read more here.
Keywords: radiative origin; fermion; mass; hierarchy ... See more keywords
Has the origin of the third-family fermion masses been determined?
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep04(2021)151
Abstract: Precision measurements of the Higgs couplings are, for the first time, directly probing the mechanism of fermion mass generation. The purpose of this work is to determine to what extent these measurements can distinguish between… read more here.
Keywords: family fermion; origin third; fermion masses; fermion ... See more keywords
Quantum fermion superradiance and vacuum ambiguities on charged black holes
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2025)118
Abstract: Unlike a classical charged bosonic field, a classical charged fermion field on a static charged black hole does not exhibit superradiant scattering. We demonstrate that the quantum analogue of this classical process is however present.… read more here.
Keywords: vacuum; superradiance vacuum; fermion superradiance; fermion ... See more keywords
Spectral flow of fermions in the ℂP2 (anti-)instanton, and the sphaleron with vanishing topological charge
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2024)057
Abstract: The spectral flow is ubiquitous in the physics of soliton-fermion interacting systems. We study the spectral flows related to a continuous deformation of background soliton solutions, which enable us to develop insight into the emergence… read more here.
Keywords: spectral flow; topological charge; fermion; vanishing topological ... See more keywords
Anomaly-free dark matter models are not so simple
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2017)053
Abstract: A bstractWe explore the anomaly-cancellation constraints on simplified dark matter (DM) models with an extra U(1)′ gauge boson Z′. We show that, if the Standard Model (SM) fermions are supplemented by a single DM fermion… read more here.
Keywords: free dark; matter models; dark matter; anomaly free ... See more keywords
Up-scattering production of a sterile fermion at DUNE: complementarity with spallation source and direct detection experiments
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2024)032
Abstract: We investigate the possible production of a MeV-scale sterile fermion through the up-scattering of neutrinos on nuclei and atomic electrons at different facilities. We consider a phenomenological model that adds a new fermion to the… read more here.
Keywords: production sterile; fermion; direct detection; sterile fermion ... See more keywords
Order-Disorder Transition in the Half-Filled Two-Component Lattice Fermion Model with Nearest-Neighbor Repulsion
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-020-05453-x
Abstract: In this work, we study a model of asymmetric two-component lattice fermion system at half-filling, where particles of both species (distinguishable by, e.g., spin) can interact only via nearest-neighbor repulsion W . The analysis is… read more here.
Keywords: order; component lattice; transition; fermion ... See more keywords
Hamiltonian models of interacting fermion fields in quantum field theory
Sign Up to like & getrecommendations! Published in 2019 at "Letters in Mathematical Physics"
DOI: 10.1007/s11005-019-01193-9
Abstract: We consider hamiltonian models representing an arbitrary number of spin $1/2$ fermion quantum fields interacting through arbitrary processes of creation or annihilation of particles. The fields may be massive or massless. The interaction form factors… read more here.
Keywords: theory; hamiltonian models; fermion fields; interacting fermion ... See more keywords
Violation of the Equivalence Principle in Non-Hermitian Fermion Theory
Sign Up to like & getrecommendations! Published in 2018 at "Russian Physics Journal"
DOI: 10.1007/s11182-018-1545-9
Abstract: Consequences of the non-Hermitian expansion of the Dirac equation in which the mass term is written in the form m → m1 + γ5m2 are considered. It is shown that such procedure inevitably leads to… read more here.
Keywords: fermion; non hermitian; equivalence principle; violation ... See more keywords
Min-max and max-min principles for the solution of 2 + 1 Dirac fermion in magnetic field, graphene lattice and layered diatomic materials
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2017.12.049
Abstract: Abstract This work displays the min-max and max-min principles involved in solving different 2 + 1 Dirac fermion problems. The first problem concerns a charged fermionic oscillator in an external homogeneous magnetic field, for which a quantum… read more here.
Keywords: min max; max min; max; min ... See more keywords