Weyl semimetal

（重定向自Weyl fermion）

A detector image (top) signals the existence of Weyl fermion nodes and the Fermi arcs.[8] The plus and minus signs note the particle's chirality. A schematic (bottom) shows the way Weyl fermions inside a crystal can be thought as monopole and antimonopole in momentum space. (Image art by Su-Yang Xu and M. Zahid Hasan)

Weyl fermions are massless chiral fermions that play an important role in quantum field theory and the standard model. They may be thought of as a building block for fermions in quantum field theory, and were predicted from a solution to the Dirac equation derived by Hermann Weyl. For example, one-half of a charged Dirac fermion of a definite chirality is a Weyl fermion. They have not been observed as a fundamental particle in nature. Weyl fermions may be realized as emergent quasiparticles in a low-energy condensed matter system.

单词	Weyl fermion
释义	Weyl fermion 英语百科 Weyl semimetal （重定向自Weyl fermion） Weyl fermions are massless chiral fermions that play an important role in quantum field theory and the standard model. They may be thought of as a building block for fermions in quantum field theory, and were predicted from a solution to the Dirac equation derived by Hermann Weyl. For example, one-half of a charged Dirac fermion of a definite chirality is a Weyl fermion. They have not been observed as a fundamental particle in nature. Weyl fermions may be realized as emergent quasiparticles in a low-energy condensed matter system.
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