Contact            Interest            Qualification            Publication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address:

Theory Group,

Saha Institute of Nuclear Physics,

1/AF Salt Lake, Kolkata 700064

E-mail address:

asitk.de [AT] saha.ac.in

Phone:

+91 33 2337 4345 to 48, ext. 2347 (office)

+91 33 2358 0321 (Residence)

98301 51772 (Personal Cell)

Fax:

+91 33 2337 4637

 

 

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My primary research interest is in Quantum Field Theory regularized on the lattice, popularly known as lattice gauge theory. In this field I have worked on the issues of lattice fermions, lattice formulation of chiral gauge theory, lattice Yukawa theories, fermion algorithms, U(1) gauge theories and triviality issues, nonperturbative gauge fixing on lattice U(1) gauge theory, 2d scalar theory with quartic coupling etc. Currently I am interested in SU(N) chiral gauge theories on lattice, lattice QCD and chiral perturbation theory for lattice QCD.

 

 

 

Other Interests:

  • Indian Classical Music:                           

  • Cricket

 

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Degree

From

Year

B.Sc.

Presidency College, Kolkata

1979

M.Sc.

University of Calcutta

1981

M.S.

Carnegie-Mellon University, USA

1983

Ph.D.

The Ohio State University, USA

1988

 

Professional Experience:

 

Oct. 1988  to  Sept. 1992:

Post-doctoral research fellow at the Institute of Theoretical Physics, RWTH, Aachen, Germany and concurrently a guest scientist position at the HLRZ, Forschungszentrum, Juelich, Germany

Oct. 1992  to Sept. 1994:

Post-doctoral research fellow at the Physics Department, Washington University, St. Louis, USA

Oct. 1994  to May 1998:

Reader at Theory Group, Saha Institute of Nuclear Physics, Kolkata

Aug. 1998  to  July 2003

Associate Professor at Theory Group, Saha Institute of Nuclear Physics, Kolkata

Aug. 2003  Till date

Professor at Theory Group, Saha Institute of Nuclear Physics, Kolkata

 

 

 

 

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  1. Asit K. De and T. Sinha, More on the continuum limit of  gauge-fixed compact U(1) lattice gauge theory, hep-lat/0506033

  2. Asit K. De, A. Harindranath, J. Maiti and T. Sinha, Topological charge in 1+1 dimensional lattice phi**4 theory, Phys. Rev. D72 (2005) 094504

  3. Asit K. De, A. Harindranath, J. Maiti and T. Sinha, Investigation in 1+1 dimensional lattice phi**4 theory, Phys. Rev. D72 (2005) 094503

  4. S. Basak, Asit K. De and T. Sinha, On the continuum limit of the gauge-fixed compact U(1) gauge theory, Phys. Lett. B580 (2004) 209

  5. Asit K. De, Chiral Gauge Theories on lattice, review article in Frontiers in High Energy Physics, Vol. 4, special publication for the 75th year of the Indian Journal of Physics, eds. Amitabha Raychaudhuri and Partha Mitra, Allied Publishers (2004)

  6. Dipankar Chakrabarti, Asit K. De and A. Harindranath, Fermions in light front transverse lattice QCD, Pramana 61 (2003) 967

          (Proceedings of the QCD workshop in IIT Kanpur in 2002)

  7. Dipankar Chakrabarti, Asit K. De and A. Harindranath, Fermions on the light front transverse lattice, hep-th/0211145, Phys. Rev. D67 (2003) 076004

  8. S. Basak and Asit K. De, Investigation of gauge-fixed pure U(1) theory at strong coupling, Nucl. Phys. B (Proc. Suppl.) 106 (2002) 730

  9. S. Basak and Asit K. De, Gauge fixed domain wall fermions on lattice at small Yukawa coupling, Phys. Lett. B 522/3-4 (2001) 350

  10. S. Basak and Asit K. De, U(1) Chiral gauge theory on lattice with gauge-fixed domain wall fermions, Nucl. Phys. B (Proc. Suppl.) 94 (2001) 765

  11. S. Basak and Asit K. De, Chiral Gauge Theory on Lattice with Domain Wall Fermions, Phys. Rev. D64 (2001) 014504

  12. H. Banerjee and Asit K. De, Fermion decoupling and the Axial Anomaly on the Lattice, Nucl. Phys. B (Proc.Suppl.) 83 (2000) 932

  13. S. Basak and Asit K. De, U(1) Chiral Gauge Theory with Domain Wall Fermions and Gauge Fixing, Nucl. Phys. B (Proc.Suppl.) 83 (2000) 615

  14. S. Basak and A.K. De, Kramers Equation Algorithm with Kogut-Susskind fermions on lattice, Phys. Lett. B430 (1998) 320

  15. H. Banerjee and A.K. De, Lattice fermions and chiral symmetry, Nucl. Phys. B (Proc. Suppl.) 53 (1997) 641

  16. H. Banerjee and A.K. De, Fermions on lattice and chiral invariance, in the proceedings of the Intl. Conf. on 70 years of Quantum Mechanics and recent trends in theoretical Physics, ISI, Calcutta, 1996 (world Scientific, Singapore)

  17. C. Bernard, A.K. De et al, f_B quenched and unquenched, Nucl. Phys B (Proc. Suppl.) 47 (1996) 459

  18. C. Bernard, A.K. De et al, Status and prospect for determining f_B, f_B_s, f_B_s/f_B on the lattice, in the proceedings of the Intl. Conf. LISHEP 95, Rio de Janeiro, Brazil, eds. F. Caruso et al (Editions Frontiere) page 399

  19. C. Bernard, A.K. De et al, Preliminary heavy-light decay constants from the MILC collaboration, Nucl. Phys. B (Proc. Suppl.) 42 (1995) 388

  20. A.K. De, E. Focht, W. Franzki, J. Jersak and M. Stephanov, Study of the asymptotic freedom of 2d Yukawa models on the lattice, Phys. Lett. B308 (1993) 327

  21. A.K. De, E. Focht, W. Franzki and J. Jersak, How much are 2d Yukawa models similar to the Gross-Neveu models? Nucl. Phys. B (Proc. Suppl.) 30 (1993) 662

  22.  W. Bock, A.K. De, E. Focht and J. Smit, Fermion-Higgs model with strong Wilson-Yukawa coupling in two dimensions, Nucl. Phys. B401 (1993) 481

  23.  W. Bock, A.K. De, E. Focht and J. Smit, Chiral fermions in two dimensions? Nucl. Phys. B (Proc. Suppl.) 30 (1993) 666

  24.  A.K. De, Numerical Investigation of the Wilson-Yukawa approach, Nucl. Phys. B (Proc. Suppl.) 29 B,C (1992) 182

  25. A.K. De, Renormalized Yukawa couplings from an SU(2)*SU(2) Yukawa model, Nucl. Phys. B (Proc. Suppl.) 26 (1992) 510

  26. A.K. De and J. Jersak, Yukawa models on the lattice, in Heavy Flavors, eds. A.J. Buras and M. Lindner (World Scientific, Singapore)

  27. W. Bock, A.K. De, C. Frick, J. Jersak and T. Trappenberg, Spontaneous symmetry breaking on the lattice generated by Yukawa interaction, Nucl. Phys. B378 (1992) 652

  28. W. Bock, A.K. De and J. Smit, Fermion masses at strong Wilson-Yukawa coupling in the symmetric phase, Nucl. Phys. B388 (1992) 243

  29. W. Bock, A.K. De, C. Frick, K. Jansen and T. Trappenberg, A search for an upperbound for the renormalized Yukawa coupling in a lattice fermion-Higgs model, Nucl. Phys. B371 (1992) 683

  30. I.M. Barbour, W. Bock, C.T.H. Davies, A.K. De, D. Henty, J. Smit and T. Trappenberg, The eigenvalue spectra in Z(2)*Z(2) and SU(2)*SU(2) fermion-Higgs models, Nucl. Phys. B368 (1992) 390

  31. A.K. De, Smit-Swift model in the symmetric phase: Investigations in the global symmetry limit, Nucl. Phys. B (proc. Suppl.) 20 (1991) 572

  32. W. Bock, A.K. De, K. Jansen, J. Jersak, T. Neuhaus and J. Smit, Phase diagram of a lattice SU(2)*SU(2) scalar-fermion model with naive and Wilson fermions, Nucl. Phys. B344 (1990) 207

  33. W. Bock and A.K. De, Unquenched investigation of fermion masses in a chiral fermion theory on the lattice, Phys. Lett. B245 (1990) 207

  34.  A.K. De, Towards removing doublers of chiral fermions on the lattice, Nucl. Phys. B (proc. Suppl.) 17 (1990) 487

  35. W. Bock, A.K. De, K. Jansen, J. Jersak, T. Neuhaus and J. Smit, Decoupling doublers of chiral lattice fermions in a quenched fermion-Higgs model, Phys. Lett B232 (1989) 486

  36. W. Bock, A.K. De, K. Jansen, J. Jersak and T. Neuhaus, Nonperturbative study of the Yukawa coupling in the SU(2)*SU(2) model with quenched naive lattice fermions, Phys. Lett. B231 (1989) 283

  37. A.K. De, A microcanonical study of the lattice Gross-Neveu model using staggered fermions, OSU preprint DOE/ER/01545-390

  38. A. De and J. Shigemitsu, Probing the SU(2) gauge-Higgs system with fermions, Nucl.Phys. B307 (1988) 376

     

     

     

     

     

     

     

     

     

     

 

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