Extensions of lattice groups, gerbes and chiral fermions on a torus
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geometry and Physics"
DOI: 10.1016/j.geomphys.2017.08.003
Abstract: Abstract Motivated by the topological classification of hamiltonians in condensed matter physics (topological insulators) we study the relations between chiral Dirac operators coupled to an abelian vector potential on a torus in 3 and 1… read more here.
Keywords: chiral fermions; space; group; physics ... See more keywords
Chiral gravitational waves from chiral fermions
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.023501
Abstract: We report on a new mechanism that leads to the generation of primordial chiral gravitational waves, and hence, the violation of the parity symmetry in the Universe. We show that nonperturbative production of fermions with… read more here.
Keywords: waves chiral; chiral fermions; chiral gravitational; gravitational waves ... See more keywords
Minimal radiative Dirac neutrino mass models
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DOI: 10.1103/physrevd.99.075008
Abstract: Neutrinos may be Dirac particles whose masses arise radiatively at one-loop, naturally explaining their small values. In this work we show that all the one-loop realizations of the dimension-five operator to effectively generate Dirac neutrino… read more here.
Keywords: dirac neutrino; minimal radiative; one loop; neutrino ... See more keywords
Unconventional Chiral Fermions and Large Topological Fermi Arcs in RhSi.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.206401
Abstract: The theoretical proposal of chiral fermions in topological semimetals has led to a significant effort towards their experimental realization. In particular, the Fermi surfaces of chiral semimetals carry quantized Chern numbers, making them an attractive… read more here.
Keywords: chiral fermions; fermions large; fermi arcs; unconventional chiral ... See more keywords