Cosmas K. Zachos (Greek: Κοσμάς Ζάχος; born 1951, Athens) is a theoretical physicist. He was educated in physics (undergraduate A.B. 1974) at Princeton University, and did graduate work in theoretical physics at the California Institute of Technology (Ph.D. 1979) under the supervision of John Henry Schwarz.
Zachos is a staff member in the theory group of the High Energy Physics Division of Argonne National Laboratory. He is considered an authority on the subject of phase-space quantization. His early research involved, jointly, the introduction of renormalization Geometrostasis, and the so-called FFZ Lie algebra of Noncommutative geometry. His thesis work revealed a balancing repulsive gravitational force present in Extended Supergravity.
He is co-author of treatises on quantum mechanics in phase space, a Fellow of the American Physical Society, and a Fellow of the Institute of Physics. He is Adjunct Professor of physics at the University of Miami and the brother of theoretical computer scientist Stathis Zachos.
- Cosmas K. Zachos, David B. Fairlie, and Thomas L. Curtright, Quantum Mechanics in Phase Space. (World Scientific, Singapore, 2005) ISBN 978-981-238-384-6 .
- Thomas L. Curtright, David B. Fairlie, Cosmas K. Zachos, A Concise Treatise on Quantum Mechanics in Phase Space, (World Scientific, Singapore, 2014) ISBN 9789814520430 .
- Zachos's publications available on the INSPIRE-HEP Literature Database.
- Zachos's website at Argonne
- Zachos's publications at the Google Cite database
- Zachos's author page
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