What key details about barton zwiebach can be extracted from the following bio? Bio: barton zwiebach -lrb- born october 4 , 1954 -rrb- is a string theorist and professor at the massachusetts institute of technology , born in lima , peru . his undergraduate work was in electrical engineering at the universidad nacional de ingenieria in peru , from which he graduated in 1977 . his graduate work was in physics at the california institute of technology . zwiebach obtained his ph.d. in 1983 , working under the supervision of murray gell-mann . he has held postdoctoral positions at the university of california , berkeley , and at mit , where he became an assistant professor of physics in 1987 , and a permanent member of the faculty in 1994 . he is one of the world 's leading experts in string field theory . he wrote the textbook , '' a first course in string theory '' -lrb- 2004 , isbn 0-521-83143-1 -rrb- , meant for undergraduates .
A:
- doctoral students is oliver dewolfe tamas hauer amer iqbal- known for is string field theory- caption is barton zwiebach at harvard university- fields is theoretical physics- workplaces is harvard university university of california uc berkeley mit- doctoral advisor is murray gell-mann- birth date is 04 october 1954- name is barton zwiebach- citizenship is united states- nationality is peruvian and united states- image is barton-zwiebach-crop . jpg- birth place is lima , peru- alma mater is universidad nacional de ingenieria california institute of technology