• Academic

  Distinguished Professor, City College of the CUNY (since September 2011)
  Professor, City College of the CUNY (1997-2011)
  Associate Professor, City College of the CUNY (1993-1996)
  Associate Professor, Columbia University (1991-1993)
  Assistant Professor, Columbia University (1987-1991)
  Research Associate, Institute for Theoretical Physics, Santa Barbara (1985-1986)
  Research Associate, Institute for Advanced Study, Princeton (1983-1985)

• Administrative

  Acting/Interim Dean of Science (March 2018-January 2020)
  Chairman, Physics Department, City College of the CUNY (February 2007-June 2010)
  

Ph.D., Syracuse University, New York, 1983
M.Sc., University of Kerala, India, 1978
B.Sc., University of Kerala, India, 1976

Fellow of the American Physical Society (2013)

Dublin Institute for Advanced Studies, Dublin, Ireland (June-July 2024)
Indian Institute of Science, Bangalore, India (January 2024)
Brookhaven National Laboratory, Upton, New York (June 2023)
Galileo Galilei Institute for Theoretical Physics, Florence, Italy (September 2021)
Simons Center for Geometry and Physics, Stony Brook (May 2014)
The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy (April 2014)
Mathematical Sciences Institute, Oxford, UK (March 2014)
Nordic Institute for Theoretical Physics (NORDITA), Stockholm, Sweden (June 2012)
Niels Bohr International Academy, Copenhagen, Denmark (April-May, 2012)
Institute of Mathematical Sciences, Chennai, India (February-March 2012)
Isaac Newton Institute, University of Cambridge, UK (August 2007)
The Perimeter Institute for Theoretical Physics, Waterloo, Canada (February 2006, September 2006)
Kavli Institute for Theoretical Physics, University of California, Santa Barbara (August-September 2004)
The Abdus Salam International Center for Theoretical Physics, Trieste, Italy (Summers 1998, 1999, 2001-2005, 2008)
Massachusetts Institute of Technology, Cambridge, MA (Spring 2000)
Rockefeller University, New York, NY (Autumn 1999)
Institute for Advanced Study, Princeton, NJ (Autumn 1999)

National Science Foundation Research Grants PHY-9322591, PHY-9605216, PHY-0070883, PHY-0244873, PHY-0555620, PHY-0855515, PHY-1213380 and PHY-1519449, PHY-1820721, PHY-2112729, PHY-2412479, since August 1994.  
CUNY Collaborative Research grants (1996-1998, 1999-2001, 2005-2007, 2011-2012)
PSC-CUNY awards, several since 1993.

• Ph.D. students currently working with me:

  Ramya Narayanan, Antonina Maj

• Students who completed their Ph.D.:

  Lei Jiusi (2020), Arthur Parzygnat (2016), Juraj Tekel (2013), Hailong Li (2006),
  Yasuhiro Abe (2005), Aleksandr Yelnikov (2004), Garnik Alexanian (1999),
  Ravit Efraty (1994), Jeremy Schiff (1991)