Prof. Dr. Olaf Lechtenfeld

• Institute of Theoretical Physics
  Leibniz Universität Hannover
  Appelstrasse 2, D-30167 Hannover
  
  Phone: (+49) (511) 762-3667
  Fax: (+49) (511) 762-3023
• Email: lechtenfeld(at)itp.uni-hannover.de

Major Research Interests concerning QUEST:

Theoretical and mathematical physics:
quantum field theory, gravity, string theory

Selected Publications:

• S. Ferrara, E. Ivanov, O. Lechtenfeld, E. Sokatchev and B. Zupnik
  Non-anticommutative chiral singlet deformation of N=(1,1) gauge theory
  Nucl. Phys. B 704 (2005) 154–180
• E. Ivanov, O. Lechtenfeld and B. Zupnik
  Nilpotent deformations of N=2 superspace
  JHEP 0402 (2004) 012
• Z. Horvath, O. Lechtenfeld and M. Wolf
  Noncommutative instantons via dressing and splitting approaches
  JHEP 0212 (2002) 060
• O. Lechtenfeld and A.D. Popov
  Noncommutative ‘t Hooft instantons
  JHEP 0203 (2002) 040
• O. Lechtenfeld and A.D. Popov
  Noncommutative multi-solitons in 2+1 dimensions
  JHEP 0111 (2001) 040
• O. Lechtenfeld, J. Louis, D. Lüst, H. Nicolai (eds.)
  “Strings ‘99”, Proceedings of the conference in Potsdam, Germany, 19–24 July, 1999
  Class. Quantum Grav. 17 (2000) 919–1316
• J. Bischoff, S.V. Ketov and O. Lechtenfeld
  GSO projection, BRST cohomology and picture changing in N=2 string theory
  Nucl. Phys. B438 (1995) 373–410
• O. Lechtenfeld and Ch. Nappi
  Dilaton gravity and no-hair theorem in two dimensions
  Phys. Lett. B288 (1992) 72–76
• M. Dine, O. Lechtenfeld, B. Sakita, W. Fischler, J. Polchinski
  Baryon number violation at high temperature in the standard model
  Nucl. Phys. B342 (1990) 381–408
• V.A. Kostelecky, O. Lechtenfeld, W. Lerche, S. Samuel, S. Watamura
  Conformal techniques, bosonization and tree level string amplitudes
  Nucl. Phys. B288 (1987) 173