In existographies, Etienne Guyon (1935-) is a French physicist, noted for
Thermodynamics of couples

The ideas outlined here, however, never resulted in a published paper.
Education
In 1975, Guyon was the director of the Ecole Normale Superieure, Paris. Since 2000, Guyon has been a professor at the Graduate School of Physical and Industrial Chemistry of the city of Paris.
References
1. Rinaldi, Sergio, et al (2015). Modeling Love Dynamics (pg. 20-21). World Scientific.
External links
● Etienne Guyon (French → English) – Wikipedia.
● Etienne Guyon (Faculty) – ESPCI.Fr.