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A company called BlackLight Power (http://www.blacklightpower.com) claims to be able to get the electron in a hydrogen atom to jump to a quantum state representing a fractional Rydberg number. As the electron is then closer to the nucleus, energy would be released. This flies in the face of everything I thought I understood about quantum mechanics and atomic structure. Is there a chance the person who wrote this article could add something discussing the possibility (or not) of fractional Rydberg numbers? WilliamSommerwerck (talk) 12:20, 4 June 2014 (UTC)