Joseph Polchinski

Physicist working on string theory (1954–2018).

Born May 16th, 1954 in White Plains.

Died February 2nd, 2018 at 63 years old in Santa Barbara (brain cancer). [ref]

Occupations
physicist, theoretical physicist, university teacher
Wikipedia

A word is dead when it is said, some say. I say it just begins to live that day. Emily Dickinson