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Journal Article

Are there really cooper pairs and persistent currents in aromatic molecules?


Rubio,  Angel
Nano-Bio Spectroscopy Group and ETSF Scientific Development Centre, Departamento de F;
Theory, Fritz Haber Institute, Max Planck Society;

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Squire, R. H., March, N. H., & Rubio, A. (2014). Are there really cooper pairs and persistent currents in aromatic molecules? International Journal of Quantum Chemistry, 114(7), 437-440. doi:10.1002/qua.24613.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-7CFF-8
Over 20 years ago, one of us suggested the title was affirmative. In 2012, Cooper pairs were identified in several, but not all “aromatic” compounds tested, benzene being one. This manuscript discusses the formation of three time-reversed pairs of states forming pseudobosons (high energy Cooper pairs) in benzene at room temperature. The large stabilization in energy that results is the additive effect of energy gaps of an s wave state and a charge density wave permitting the pseudobosons to exist at room temperature. The overall result of these interactions is three pseudobosons occupying the lowest boson state and the positions of the carbon nuclei are optimum by forming a perfect hexagon. The possibility of a persistent current exists; detection might not be eas