| 释义 |
Dirac|dɪˈræk|
The name of Paul Adrien Maurice Dirac (born 1902), British mathematician and physicist, used attrib. to designate phenomena, theories, etc., in Math. and Physics discovered, described, or postulated by him. Also in Fermi-Dirac.
1933Harnwell & Livingood Exp. Atomic Physics 461 (Index), Dirac-Fermi statistics. 1934Physical Rev. XLVI. 110/1 When the electron is very intimately connected with an attractive center, something happens to its spin which is not adequately described by the Dirac theory. 1935Ibid. XLVIII. 284/2 The interaction of the heavy particles with the electrons (represented, for instance, by the Dirac ‘density matrix’). Ibid. 435/1 The frequencies of the emitted light are determined by the eigenvalues of the Dirac equation. 1955W. Pauli Niels Bohr 33 The coupling between one Boson field and one Dirac field. Ibid. 39 The Dirac equations for spinors are preserved. Ibid. 47 A Dirac spinor with four components can be decomposed into two irreducible parts. 1970G. K. Woodgate Elem. Atomic Struct. iii. 36 The radiation field also is treated as a quantized system (Dirac method). |