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True Single Photons at Room Temperature
Author(s) -
Greulich Karl Otto
Publication year - 2001
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/1439-7641(20010917)2:8/9<515::aid-cphc515>3.0.co;2-9
Subject(s) - photon , quantum , computer science , physics , quantum mechanics
Textbooks on quantum mechanics suggest that single photons, badly needed to prove models of quantum electrodynamics and quantum cryptography, can be generated by attenuated multimolecule light sources. However, this is not possible, since such sources generate wavetrains. Only recently, true single‐photon sources have been made available by groups in the US, Japan and France. The Stanford room temperature source, based on single terrylene molecules, is described in some detail.