| 单词 | artificial atom |
| 释义 | > as lemmasartificial atom artificial atom n. Physics an artificial physical system containing electrons in discrete quantum states (resembling those of electrons within atoms); spec. = quantum dot n. at quantum n. and adj. Compounds 2. ΚΠ 1980 Sci. Amer. Aug. 97/1 The trapped electron has a spectrum, which can be studied in the same way as an atomic spectrum is studied. It is all very well to create an artificial atom, but if the atom is to be of any use for measurements, there must be a means for observing its spectrum. 1998 Nature 29 Oct. 873/2 Quantum dots are small conductive regions in a semiconductor, containing a variable number of electrons..that occupy well-defined, discrete quantum states—for which reason they are often referred to as artificial atoms. 2004 Nature 9 Sept. 138/2 Josephson qubits (quantum bits) are effectively artificial atoms—two-level quantum systems that use either electric charge or magnetic flux as the primary quantum degree of freedom. < as lemmas |
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