Results 21 to 30 of about 185,851 (190)

Lattice-fermionic Casimir effect and topological insulators

open access: yesPhysical Review Research, 2021
The Casimir effect arises from the zero-point energy of particles in momentum space deformed by the existence of two parallel plates. For degrees of freedom on the lattice, its energy-momentum dispersion is determined so as to keep a periodicity within ...
Tsutomu Ishikawa   +2 more
doaj   +1 more source

Quantum transport in d-dimensional lattices

open access: yesNew Journal of Physics, 2016
We show that both fermionic and bosonic uniform d -dimensional lattices can be reduced to a set of independent one-dimensional chains. This reduction leads to the expression for ballistic energy fluxes in uniform fermionic and bosonic lattices.
Daniel Manzano   +2 more
doaj   +1 more source

q-Fermionic Numbers and Their Roles in Some Physical Problems [PDF]

open access: yes, 2004
The q-fermion numbers emerging from the q-fermion oscillator algebra are used to reproduce the q-fermionic Stirling and Bell numbers. New recurrence relations for the expansion coefficients in the 'anti-normal ordering' of the q-fermion operators are ...
Parthasarathy, R.
core   +2 more sources

Borici-Creutz fermions on 2-dim lattice [PDF]

open access: yes, 2017
Minimally doubled fermion proposed by Creutz and Borici is a promising chiral fermion formulation on lattice. In this work, we present excited state mass spectroscopy for the meson bound states in Gross-Neveu model using Borici-Creutz fermion.
Basak, Subhasish   +2 more
core   +1 more source

Probabilistic Q-function distributions in fermionic phase-space

open access: yesNew Journal of Physics, 2015
We obtain a positive probability distribution or Q -function for an arbitrary fermionic many-body system. This is different to previous Q -function proposals, which were either restricted to a subspace of the overall Hilbert space, or used Grassmann ...
Laura E C Rosales-Zárate, P D Drummond
doaj   +1 more source

Information-Theoretic Features of Many Fermion Systems: An Exploration Based on Exactly Solvable Models

open access: yesEntropy, 2021
Finite quantum many fermion systems are essential for our current understanding of Nature. They are at the core of molecular, atomic, and nuclear physics.
Angel Ricardo Plastino   +2 more
doaj   +1 more source

ROTATING FERMIONS [PDF]

open access: yesThe Thirteenth Marcel Grossmann Meeting, 2015
4 pages, 1 figure, Marcel Grossmann 13 meeting ...
Ambruş, V.E., Winstanley, E.
openaire   +3 more sources

Formation of asymmetrical two-brane structure and its possible manifestation [PDF]

open access: yesAsymmetry
In this paper, we consider the class of extra-dimensional models with two branes and show that each field of the Standard Model must be localized on both neighboring branes, whose asymmetry is of great importance.
Sergey G. Rubin
doaj   +1 more source

Two relativistic Kondo effects: Classification with particle and antiparticle impurities

open access: yesPhysical Review Research, 2021
We investigate two different types of relativistic Kondo effects, distinguished by heavy-impurity degrees of freedom, by focusing on the energy-momentum dispersion relations of the ground state with condensates composed of a light Dirac fermion and a ...
Yasufumi Araki   +3 more
doaj   +1 more source

The self-consistent field model for Fermi systems with account of three-body interactions

open access: yesCondensed Matter Physics, 2015
On the basis of a microscopic model of self-consistent field, the thermodynamics of the many-particle Fermi system at finite temperatures with account of three-body interactions is built and the quasiparticle equations of motion are obtained. It is shown
Yu.M. Poluektov   +2 more
doaj   +1 more source

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