fermion

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Words related to fermion

any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle

References in periodicals archive ?
Now, the team of researchers combined these fermions at a much higher temperature than theoretically calculated, possibly paving way for future superconducting.
The study showed how this naturally leads to the formation of stacked sets of topological surface states and 3D Dirac fermions in the transition-metal dichalcogenides.
All the known fermions behave according to an equation devised in 1928 by English theoretical physicist Paul Dirac.
The Italian physicist Ettore Majorana in his 1937 paper [3] raised serious doubt about such absolute categorization and forced the dialectical perspective on modern particle physics; shortly after Paul Dirac gave the relativistic formulation of quantum mechanics for the electron [4] and conceived the theoretical basis for describing the spin 1/2 particles that would divide all possible matter particles into two mutually exclusive groups known as fermions and bosons, based on their spin properties.
For the reason that the exclusion principle may be invalid for fermions, we can reach the following conclusions: In physics, the law of conservation of energy is the unique truth; for other principles, laws and the like, as they are established, the law of conservation of energy should be considered, otherwise they may be invalid in some cases; for many existing principles, laws and the like that do not consider the law of conservation of energy, we should renewly consider their relationship with the law of conservation of energy, in order to determine their fate or discuss the problems to modify them.
According to the standard model of particle physics, the interaction strength between the fermions and the Higgs field must be proportional to their mass.
At that time a known particle with zero mass was only the Photon, a Boson, with tsh spin but he reduced mass of a fermion or an electron in Dirac's equation and got a pair of particles with zero mass and therefore with no electric charge because if a particle has no rest mass but spin half of tsh then we are forced to assign it, zero electric charge.
Note that any chromotopology A can be ranked as follows: take one choice of bipartition of V (A) into bosons and fermions.
By cooling fermions, in addition to bosons, researchers can explore a variety of phenomena such as Bose-Einstein condensation, Cooper pairing of fermions, ultracold atomic interactions and superfluidity in dilute atomic gases.
Heavy fermions confined to two dimensions display striking deviations from the standard Fermi-liquid low-temperature electronic properties, and these are associated with the dimensional tuning of quantum criticality.
Using properties in a crystal composed of uranium, ruthenium and silicon the effects of heavy fermions began to appear as the material was cooled below 55 Kelvin (-218 [degrees]C).
Some areas explored include loop space path integral representations for Euclidean quantum field path integrals, Abelian Wilson loops, fermions on the lattice by means of Mandelstam-Wilson phase factors, string wave equations in Polyakov's path integral framework, a covariant path integral for Nambu-Goto string theory, and domains of bosonic functional integrals.
Perhaps more importantly, its peculiar band structure affords a physical realization of a two-dimensional system of mass-less spin 1/2 Fermions.
To date, we've got bosons, fermions, leptons, muons, pions, neutrinos, photons, gluons, and gravitons.
There are two types of fundamental particles involved, the fermions and the bosons (see my earlier article on quantum probability: "Inside the Quantum Atom Revolution," May 2006, Article #25025).