Results 91 to 100 of about 185,851 (190)

Notions of Fermionic Entropies for Causal Fermion Systems

Mathematical Physics, Analysis and Geometry
Abstract The fermionic von Neumann entropy, the fermionic entanglement entropy and the fermionic relative entropy are defined for causal fermion systems. Our definition makes use of entropy formulas for quasi-free fermionic states in terms of the reduced one-particle density operator.
Finster F., Jonsson R. H., Lottner M., Much A., Murro S.   +4 more
openaire   +4 more sources

Bosonization of Fermionic Fields and Fermionization of Bosonic Fields [PDF]

Advances in Applied Clifford Algebras, 2017
In this paper using the Clifford and spin-Clifford bundles formalism we show how Weyl and Dirac equations formulated in the spin-Clifford bundle may be written in an equivalent form as generalized Maxwell like form formulated in the Clifford bundle. Moreover, we show how Maxwell equation formulated in the Clifford bundle formalism can be written as an ...
openaire   +2 more sources

A corner reflector of graphene Dirac fermions as a phonon-scattering sensor

Nature Communications, 2019
Dirac fermion optics leverages p-n junctions and Klein tunnelling barriers present in materials to implement complex optical functions and devices, including reflectors, collimators, and Dirac fermion microscopes.
H. Graef, Q. Wilmart, M. Rosticher, D. Mele, L. Banszerus, C. Stampfer, T. Taniguchi, K. Watanabe, J.-M. Berroir, E. Bocquillon, G. Fève, E. H. T. Teo, B. Plaçais   +12 more
doaj   +1 more source

Boson induced s-wave pairing in dilute boson-fermion mixtures

, 2001
We show that in dilute boson-fermion mixtures with fermions in two internal states, even when the bare fermion-fermion interaction is repulsive, the exchange of density fluctuations of the Bose condensate may lead to an effective fermion-fermion ...
A.C. Anderson, A.G. Truscott, B. DeMarco, B. DeMarco, D.O. Edwards, F. Schreck, F. Schreck, H. Heiselberg, J. Bardeen, K.M. O’Hara, L. Viverit, L. Viverit, L.P. Gorkov, M.J. Bijlsma, V.J. Emery   +14 more
core   +2 more sources

Describe Molecules by a Heterogeneous Graph Neural Network with Transformer-like Attention for Supervised Property Predictions

ACS Omega, 2022
Daiguo Deng, Zengrong Lei, Xiaobin Hong, Ruochi Zhang, Fengfeng Zhou   +4 more
doaj   +1 more source

Nonperturbative definition of the standard models

Physical 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

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

Physical 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, Thomás Fogarty, Thomas Busch, Simeon I. Mistakidis   +3 more
doaj   +1 more source

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

Nuclear 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, Chikako Idegawa, Rie Inumiya   +2 more
doaj   +1 more source

Integrable Gross-Neveu models with fermion-fermion and fermion-antifermion pairing [PDF]

Physical Review D, 2014
16 pages, 4 ...
openaire   +2 more sources

Constraints on dark matter annihilation to fermions and a photon

Journal 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, Abhishek M. Iyer, Ranjan Laha   +2 more
doaj   +1 more source