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fermion

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fermion
fermion (ˈfɜːmɪən) [f. the name of E. Fermi (see Fermi) + -on.] A particle that obeys the Fermi-Dirac statistics. Cf. boson.1947 P. A. M. Dirac Princ. Quantum Mech. (ed. 3) ix. 210 It leads to a special statistics, which was first studied by Fermi, so we shall call particles for which only antisymme... Oxford English Dictionary
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Chemists create a 2D heavy fermion | ScienceDaily
Jan 17, 2024Retrieved March 4, 2024 from www.sciencedaily.com / releases / 2024 / 01 / 240117143932.htm. Columbia University. "Chemists create a 2D heavy fermion."
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Wilson fermion
In lattice field theory, Wilson fermions are a fermion discretization that allows to avoid the fermion doubling problem proposed by Kenneth Wilson in 1974 The inverse free fermion propagator in momentum space now reads where the last addend corresponds to the Wilson term again. wikipedia.org
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Majorana fermion
A Majorana fermion (), also referred to as a Majorana particle, is a fermion that is its own antiparticle. For a Dirac fermion the operators and are distinct, whereas for a Majorana fermion they are identical. wikipedia.org
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Dirac fermion
In physics, a Dirac fermion is a spin-½ particle (a fermion) which is different from its antiparticle. See also Dirac spinor, a wavefunction-like description of a Dirac fermion Dirac–Kähler fermion, a geometric formulation of Dirac fermions Majorana fermion wikipedia.org
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Is $U(2)=SU(2) \times U(1)$? In the many textbook of standard model, i encounter the relation \begin{align} SU(2)_L \times U(1)_L = U(2)_L \end{align} Here $L$ means the left-handness, (It is a physical meaning(repres...
Not quite. There is a natural short exact sequence $$1 \to SU(2) \to U(2) \xrightarrow{\det} U(1) \to 1.$$ This sequence doesn't have a natural splitting, but it does have a splitting given by $$U(1) \ni z \mapsto \left[ \begin{array}{cc} z & 0 \\\ 0 & 1 \end{array} \right] \in U(2).$$ Such a splitt...
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Staggered fermion
In lattice field theory, staggered fermions (also known as Kogut–Susskind fermions) are a fermion discretization that reduces the number of fermion doublers partition function The resulting fermion is called a rooted staggered fermion and it is used in most staggered fermion simulations, including by the wikipedia.org
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Composite fermion
These sequences terminate at the composite fermion Fermi sea. The fan diagram of the composite fermion Landau levels has been determined by transport, and shows both spin-up and spin-down composite fermion Landau wikipedia.org
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Fermion - Wikipedia
In particle physics, a fermion is a particle that follows Fermi-Dirac statistics. Generally, it has a half-odd-integer spin: spin 1/2, spin 3/2, etc. These particles obey the Pauli exclusion principle. Fermions include all quarks and leptons and all composite particles made of an odd number of these, such as all baryons and many atoms and nuclei.
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Overlap fermion
In lattice field theory, overlap fermions are a fermion discretization that allows to avoid the fermion doubling problem. By now overlap fermions are well established and regularly used in non-perturbative fermion simulations, for instance in lattice QCD. wikipedia.org
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What is the Difference between a Lepton and a Fermion?
A lepton is a spin 1 2 1 2 fermion that is elementary and does not feel the strong force. So leptons are a subset of fermions. The only known leptons are the electron, electron neutrino, muon, muon neutrino, tau and tau neutrino, and their antiparticles. You're right to be cautious about saying a fermion has spin 1 1, since a fermion is any ...
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Electronic structure of heavy fermion system CePt - IOPscience
Fig. 1. Crystal structure and characterization of CePt 2 In 7. (a) Crystal structure of CeIn 3. (b) Crystal structure of CeMIn 5 (M = Co, Rh, and Ir) with a space group P4/mmm. (c) Crystal structure of CePt 2 In 7 with a space group I4/mmm, formed with CeIn 3 layers separated by PtIn 2 layers. (d) X-ray diffraction patten of our CePt 2 In 7 single crystal. The inset shows the image of the ...
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Fermion doubling
tastes of the fermion. of a single fermion. wikipedia.org
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当前凝聚态物理（理论以及实验）有哪些研究热点和难题？
Weyl fermion可以看成是massless的Dirac fermion，解除自旋简并度得到。几十年前人们以为中微子是Weyl fermion，悲催啊，中微子振荡的发现（还记得今年2015的诺奖么）说明人家是有质量的。。。所以必然不是Weyl fermion。 Marjorana fermion。类似Weyl fermion的故事，这个Marjorana fermion 也是由massless 的Dirac方程导出的。 zhihu
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Domain wall fermion
In lattice field theory, domain wall (DW) fermions are a fermion discretization avoiding the fermion doubling problem. wikipedia.org
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