Bio


How can we use quantum field theory and string theory to understand key questions in high energy theory, cosmology, and condensed matter physics? Do the hints of deep mathematical structures underlying string theory contain new lessons for fundamental physics?

Professor Kachru is widely interested in the foundational theoritical questions underlying cosmology, condensed matter theory, particle theory, and quantum gravity. These include the nature of the initial cosmological singularity; the microscopic theory of inflation; field theory and string theory models of strongly correlated condensed matter systems; and possible solutions of the hierarchy problem (with implications for beyond-the-Standard-Model physics). He also has an abiding interest in the mathematical structure underlying string theory and string compactifications.

Current areas of focus:

- Study of the mathematics underlying BPS states and black holes in string theory, including connections to (mock) modular forms and number theory.
- Application of techniques of modern quantum field theory (including dualities) to develop a controlled understanding of novel phases of condensed matter systems.

Academic Appointments


Administrative Appointments


  • Wells Family Director, Stanford Institute for Theoretical Physics (2017 - Present)
  • Professor of Physics, Stanford University (1999 - Present)
  • KITP Member and Visiting Professor, UCSB (2009 - 2010)
  • Member, Institute for Advanced Study (1999 - 2000)
  • Assistant Professor, UC Berkeley (1997 - 1999)
  • Research Associate, Rutgers University (1996 - 1997)
  • Junior Fellow, Harvard Society of Fellows (1994 - 1996)

Honors & Awards


  • Simons Investigator Award, Simons Foundation (2017 -)
  • SQuaRE grant, "Moonshine and string theory", American Institute of Mathematics (2016-)
  • Plenary Speaker, International Congress of Mathematical Physics, International Association of Mathematical Physics (2015)
  • Distinguished Visiting Research Chair, Perimeter Institute (2014-)
  • Outstanding Young Investigator, ACIPA (2008)
  • Packard Fellow, David and Lucile Packard Foundation (2000-2005)
  • Begmann Memorial Award, Israeli Science Foundation (1999)
  • Outstanding Junior Investigator, Department of Energy (1997-99)
  • Sloan Fellow, Alfred P. Sloan Foundation (1997-99)

Boards, Advisory Committees, Professional Organizations


  • Editorial Board, Research in Mathematical Sciences (2015 - Present)
  • Scientific Advisory Committee, Perimeter Institute (2015 - Present)
  • Advisory Board, KITP (2014 - Present)
  • Member, Aspen Center for Physics (2006 - 2015)
  • External Organizer, ICTP Spring School (2007 - 2010)
  • Editor, JHEP (2004 - Present)
  • External Organizer, TASI - 1999, 2005, 2007

Professional Education


  • Ph.D., Princeton University, Physics (1994)
  • A.B., Harvard University, Physics (1990)

2017-18 Courses


Stanford Advisees


All Publications