Bharat Ratra

Bharat Vishnu Ratra
Born	(1960-01-26) 26 January 1960 (age 64) Bombay, India (now Mumbai, India)
Alma mater	Indian Institute of Technology Delhi (MS) Stanford University (PhD)
Known for	Quintessence (physics) Dark energy
Scientific career
Fields	Theoretical physics Physical cosmology Astroparticle physics
Institutions	Kansas State University Massachusetts Institute of Technology California Institute of Technology Princeton University Stanford University
Doctoral advisor	Leonard Susskind Michael Peskin

Bharat Vishnu Ratra (born 26 January 1960) is an Indian-American physicist, theoretical cosmologist and astroparticle physicist who is currently a university distinguished professor of physics at Kansas State University.^[1]

He is known for his work on dynamical dark energy and on the quantum-mechanical generation of energy density and magnetic field fluctuations during inflation.