Results 1 to 10 of about 3,776 (118)
Triplet fermions and Dirac fermions in borophene
Physical Review B, 2017 Borophene is a monolayer materials made of boron. A perfect planar boropehene called $β_{12}$ borophene has Dirac cones and they are well reproduced by a tight-binding model according to recent experimental and first-principles calculation results. We explicitly derive a Dirac theory for them. Dirac cones are gapless when the inversion symmetry exists,
Motohiko Ezawa
exaly +4 more sources
SciPost PhysicsUsing 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.
Eric A. Bergshoeff, Andrea Campoleoni, Andrea Fontanella, Lea Mele, Jan Rosseel
doaj +7 more sources
Fermionization of Two Distinguishable Fermions [PDF]
Physical Review Letters, 2012 In this work we study a system of two distinguishable fermions in a 1D harmonic potential. This system has the exceptional property that there is an analytic solution for arbitrary values of the interparticle interaction. We tune the interaction strength via a magnetic offset field and compare the measured properties of the system to the theoretical ...
Zürn, G. +6 more
openaire +5 more sources
The Influence of the Symmetry of Identical Particles on Flight Times
Entropy, 2021 In this work, our purpose is to show how the symmetry of identical particles can influence the time evolution of free particles in the nonrelativistic and relativistic domains as well as in the scattering by a potential δ-barrier.
Salvador Miret-Artés +3 more
doaj +1 more source
Warm Dark Matter from Higher-Dimensional Gauge Theories
Universe, 2021 Warm dark matter particles with masses in the keV range have been linked with the large group representations in gauge theories through a high number of species at decoupling.
Sinziana Paduroiu +3 more
doaj +1 more source
Nature, 2016 Published in Nature 532,189-194 (14 April 2016).
Wang, Zhijun +3 more
openaire +3 more sources
Energetic Cost of Statistical Order-Degree Change in a Fermions’ Set
Entropy, 2022 We discuss novel many-fermions thermodynamics’ features. They refer to the energy cost associated to order-disorder changes. Our thermal quantum statistical scenario is controlled by suitable fermion-fermion interactions.
Flavia Pennini +3 more
doaj +1 more source
Fermionic Greybody Factors in Schwarzschild Acoustic Black Holes
Universe, 2023 In Schwarzschild acoustic black hole (SABH) spacetime, we investigate the wave dynamics for the fermions. To this end, we first take into account the Dirac equation in the SABH by employing a null tetrad in the Newman–Penrose (NP) formalism.
Sara Kanzi, İzzet Sakallı
doaj +1 more source
Tangent Fermions: Dirac or Majorana Fermions on a Lattice Without Fermion Doubling
Annalen der Physik, 2023 AbstractMethods to discretize the Hamiltonian of a topological insulator or topological superconductor, without giving up on the topological protection of the massless excitations (respectively, Dirac fermions or Majorana fermions) are reviewed. The method of tangent fermions, pioneered by Richard Stacey, is singled out as being uniquely suited for ...
Beenakker, C. W. J. +4 more
openaire +5 more sources
A Variational Approach to Excited Fermions on Kinks
Universe, 2023 We study the back-reaction of fermion fields on the kink solution in one space and one time dimension. We employ a variational procedure to determine an upper limit for the minimum of the total energy.
Herbert Weigel, Danial Saadatmand
doaj +1 more source