| 单词 | atom laser |
| 释义 | > as lemmasatom laser atom laser n. Physics a quantum system for producing a beam of atoms in a coherent state, analogous to the photons in an optical laser. ΚΠ 1995 H. M. Wiseman & M. J. Collett in Physics Lett. A 202 246 We present a model for an atom laser. A thermal beam of atoms tunnels in through one end of a trap, in which the atoms are subject to dark-state cooling... The beam which tunnels out is approximately all-order coherent. 1999 Science 12 Mar. 1613/1 Ketterle and his MIT group produced the first atom laser in 1997 by tricking part of the atom vapor into leaving the pack. 2004 B. Bunch & A. Hellemans Hist. Sci. & Technol. 702/1 Wolfgang Ketterle demonstrates interference fringes in two overlapping Bose-Einstein condensates expanding from a trap; the matter waves are coherent and therefore the device producing these atom beams is called an atom laser. < as lemmas |
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