| 单词 | bra vector |
| 释义 | > as lemmasbra vector A vector in Hilbert space that is the complex conjugate of a ket and is symbolized by <|. Frequently as bra vector. ΘΚΠ the world > matter > physics > quantum theory > [noun] > ket vector > complex conjugate of bra1947 1947 P. A. M. Dirac Princ. Quantum Mech. (ed. 3) i. 19 We shall call the new vectors bra vectors, or simply bras, and denote a general one of them by the symbol <|, the mirror image of the symbol for a ket vector. 1957 F. Mandl Quantum Mech. (ed. 2) v. 102 The ket and bra vectors correspond to the column and row vectors of matrix algebra. 1972 J. M. Jauch in Salam & Wigner Aspects Quantum Theory ix. 164 These examples..show how Dirac's bra and ket notation, so effective as an operational device, may be based on a mathematically rigorous foundation. 1973 S. Wieder Foundations Quantum Theory iii. 47 The inner product b. a is a complex scalar obtained by multiplying the bra form of b by the ket form of a. 1974 P. W. Atkins Quanta 30 The state of a system whose wavefunction is Ψn(r) is represented by the ket |n>, and the conjugate Ψn*(r) by the bra <n|. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。