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Sushanta Dattagupta

PhD:
Physics (St.John's / Brookhaven National Laboratory, 1973/74) FNA, FNASc, FASc, FTWAS
Area of Interest:
Condensed Matter Physics (Theory)
Email ID:
sushantad
Research Interest:

Non-equilibrium Statistical Mechanics, Dissipative Quantum Systems, Nanomaterials, Fluctuation Spectroscopy, Quantum Optics.

Academic Qualification:
  1. Ph.D. (Physics), Brookhaven National Laboratory, St. John's University, New York, 1973
  2. M.Sc. (Physics), Calcutta University, 1967
  3. B.Sc.(Physics Honours), Calcutta University, 1965
Positions:
  1. Lecturer in Physics, Presidency College, Kolkata (1968-69)
  2. Post-Doctoral Fellow, Carnegie-Mellon University, Pittsburgh (1973-75) & Senior Research
  3. Associate, University of Alberta (1975-76)
  4. Scientific Officer, Materials Science Laboratory, Indira Gandhi Centre for Atomic Research, Kalpakkam (1976-81)
  5. Reader, School of Physics, University of Hyderabad, Hyderabad (1981-86)
  6. Professor, School of Physical Sciences, JNU, New Delhi (1986-99)
  7. Dean, School of Physical Sciences, JNU, New Delhi (1987-89 & 1993-95)
  8. Director, S.N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata (8 Feb. 1999 to 8 Apr, 2005)
  9. Director, Indian Institute of Science Education and Research (IISER), Kolkata (2006 -)
  10. Honorary Professor, Jawaharlal Nehru Centre for Advanced Scientific Research (2003 - )
  11. Honorary Professor, Indian Association for the Cultivation of Science (2005 - )
Awards and Honors:

Professional Honours

  1. Young Scientist Medal, Indian National Science Academy (1977)
  2. Alexander von Humboldt Fellowship, tenured at the Institute for Solid State Physics, Juelich, Germany (1984, May-July 1985, December 1987, January-June 1997, 2002 and 2003)
  3. Research Fellow, Indian National Science Academy (1987-89)
  4. Associate, International Centre for Theoretical Physics, Trieste, Italy (1985-91) Senior
  5. Associate, International Centre for Theoretical Physics, Trieste, Italy (1992-1997) Visiting
  6. Associate, Darwin College, Cambridge University (May-July 1993)
  7. Bibharani Devi Prize of Calcutta University (2002)
  8. DAE Raja Ramanna Award of the Jawaharlal Nehru Centre for Advanced Scientific Research (2002)
  9. Sisir Kumar Mitra Medal and Lecture of the Indian Science News Association (2004)
  10. Distinguished Lecturership Award for 2005-2006,
  11. Materials Research Society of India Swamy Atulananda Endowment Award Lecture, Ramakrishna Mission (2005)
  12. L.A. Meera Memorial Lecture (2005)
  13. Meghnad Saha Memorial Award of the National Academy of Sciences, Allahabad (2005)
  14. C.V. Raman Birth Centenary Award, 93rd Indian National Science Congress (2006)
  15. Visiting Fellow under the Distinguished Scientist Visitors' Programme of the Faculty of Natural Sciences of Ben-Gurion University of the Negev, Beer-Sheva, Israel (2007-2008)
  16. J. C. Bose Fellowship of the Department of Science & Technology, India (2006-2010)
  17. Department of Atomic Energy (DAE) C V Raman Award Lecture (2009)
  18. Indian National Science Academy (INSA) C V Raman Medal (2010)

 

Fellowship

  1. Elected Fellow, Indian Academy of Sciences, Bangalore (1992)
  2. Elected Fellow, Indian National Science Academy, New Delhi (1994)
  3. Elected Fellow, The National Academy of Sciences, Allahabad (1995)
  4. Elected Fellow, The Academy of Sciences for the Developing World, (TWAS) (1999)
  5. Elected Fellow, West Bengal Academy of Science & Technology (2000)
List of Publications:
Publications in International Journals


2010

101
Retrieving qubit information despite decoherence; Amnon Aharony, Shmuel Gurvitz, Ora Entin-Wohlman, and Sushanta Dattagupta, Phys. Rev. B 82, 245417 (2010).
100
Modeling of ferroelectric domain imaging by atomic force microscopy; Manas K. Roy, Jaita Paul, and Sushanta Dattagupta, J. Appl. Phys. 108, 064102 (2010).
99
Domain dynamics and fractal growth analysis in thin ferroelectric films; Manas K. Roy, Jaita Paul, and Sushanta Dattagupta, J. Appl. Phys. 108, 014108 (2010).
98
Glucose induced fractal colony pattern of Bacillus thuringiensis; Manas K. Roy, Paromita Banerjee, Tapas K. Sengupta, and Sushanta Dattagupta, J. Theoretical Biology 265, 389 (2010).
97
Role of quantum heat bath and confinement in the low-temperature thermodynamics of cyclotron motion; M. Bandopadhyay and S. Dattagupta, Phy. Rev. E  81, 042102 (2010).
96
Dissipative quantum systems and the heat capacity; Sushanta Dattagupta, Jishad Kumar, S. Sinha, and P.A. Sreeram, Phy. Rev. E  81, 031136 (2010).


2009
95
Evolution of 180°, 90°, and vortex domains in ferroelectric films;  Manas Kumar Roy, Shamik Sarkar, and Sushanta Dattagupta,  Appl. Phys. Lett. 95, 192905 ( 2009).
94
Low-temperature thermodynamics in the context of dissipative diamagnetism; Jishad Kumar, P.A. Sreeram, and Sushanta Dattagupta, Phy. Rev. E  79, 021130 (2009).
93
Magnetism in the ordered metallic perovskite compound GdPd3BxC1-x; Abhishek Pandey, Chandan Mazumdar, R. Ranganathan and S. Dattagupta, J. Magnetism and Magnetic Materials 321, 2311 (2009).


2008
92
Transverse vibrations driven negative thermal expansion in a metallic compound GdPd3B0.25C0.75; Abhishek Pandey, Chandan Mazumdar, R. Ranganathan, S. Tripathi, D. Pandey, and S. Dattagupta, Appl. Phys. Lett. 92, 261913 (2008).
91
Negative temperature coefficient of resistance in a crystalline compound; Abhishek Pandey, Chandan Mazumdar, R. Ranganathan, Molly de Raychaudhury, T. Saha-Dasgupta, Saurabh Tripathi, Dhananjai Pandey, and S. Dattagupta, Europhysics Letters 84, 47007 (2008).
90
Quantum Mechanics under rapidly varying external perturbations; M. Bandopadhyay and S. Dattagupta, Pramana 70, 382 (2008).


2007
89
Probing Single Jumps of Surface Atoms; G. Vogl, M. Sladecek and S. Dattagupta, Phys. Rev. Lett. 99, 155902 (2007).


2006
88
Memory in nanomagnetic systems: Superparamagnetism versus spin-glass behavior; M. Bandopadhyay and S. Dattagupta, Phys. Rev. B 74, 214410 (2006).
87
Diffusion Enhancement in a Periodic Potential under High-Frequency Space-Dependent Forcing; M.Bandopadhyay, S. Dattagupta and M. Sanyal, Phys. Rev. E 73, 051108 (2006).
86
Dissipative Diamagnetism - A Case Study for Equilibrium and Nonequilibrium Statistical Mechanics; M. Bandyopadhyay and S. Dattagupta, J. Stat. Phys. 123, 1273 (2006).
85
Landau-Drude Diamagnetism: Fluctuation, Dissipation and Decoherence; M. Bandopadhyay and S. Dattagupta, J. Phys.: Condensed Matter 18, 10029 (2006).


2005
84
Spin Dynamics in a Dissipative Environment: from Quantal to Classical; J.L. Garcia-Palacios and S. Dattagupta, Phys. Rev. Lett. 95, 190401 (2005).
83
Memory in a magnetic nanoparticle system: Polydispersity and interaction effects; S. Chakraverty, M. Bandyopadhyay, S. Chatterjee, S. Dattagupta, A. Frydman, S. Sengupta, and P. A. Sreeram, Phys. Rev. B 71, 054401 (2005).
82
Line shape of beam deflection of magnetic nanoparticles in a Stern-Gerlach setup; Rajib Kumar Das and Aniruddha Konar and S. Dattagupta, Phys. Rev. B 71, 014442 (2005).


2003
81
Quantum Treatment of the Anderson-Hasegawa Model in the presence of Superexchange; P.A. Sreeram and M. Mitra and S. Dattagupta, Pramana 61, 601-609 (2003).
80
Dielectric Relaxation in a Deuteron Glass; V. Banerjee and S. Dattagupta, Phys. Rev. B 68, 054202-8 (2003).
79
Polaronic Heat Capacity in the Anderson-Hasegawa Model; M. Mitra and P.A. Sreeram and S. Dattagupta, Phys. Rev. B 67,132406-4 (2003).


2002
78
Model Quantum Magnet – II. Calculation of NMR Lineshapes; V. Banerjee and S. Dattagupta, Phys. Rev. B 66, 064418 – 064427 (2002).
77
Escape rates in the presence of high frequency perturbations; S. Sarkar and s. Dattagupta, J. Mod.Phys. B 16, 1247 – 1254 (2002).
76
Zeno Blocking of Interplanar Tunneling by Intraplane Inelastic Scattering in Layered Superconductors: A Generalized Spin-Boson Analysis; M. Sanjay Kumar S. Dattagupta and N. Kumar, Physical Review B 65, 134501 – 134508 (2002).
75
Effect of Charge Ordering/Disordering on Raman Line Shape in Manganites; S. Dattagupta and A.K. Sood, Physical Review B 65, 064405 – 064417 (2002).


2001
74
Magneto-Optic Drift of Ions; R. Ghosh S. Dattagupta and J. Singh, Physical Review A 64, 063403 – 063411 (2001).
73
Dissipationless Decoherence; G. Gangopadhyay, M. Sanjay Kumar and S. Dattagupta, J. Phys.A: Math & Gen. 34, 5487 – 5495 (2001).
72
Model Quantum Magnet I. Effect of Hyperfine Interactions on Phase Diagram and Dynamic Susceptibility; Varsha Banerjee and S. Dattagupta, Physical Review B 64, 024427 – 024437 (2001).
71
Landau Diamagnetism Revisited; S. Dattagupta, A.M. Jayannavar and N. Kumar, Current Science 80, 861 – 863 (2001).


2000
70
Optical Hall effect; J. Singh, R. Ghosh and S. Dattagupta, Phys. Rev. A 61, No.2, 025402 - 025404 (2000).


1999
69
Magneto-optic piston effect; S. Dattagupta, R. Ghosh and J. Singh, Physical Review Letters 83, 710 - 713 (1999).


1998
68
3d model of strain ordering in steel: II. Relaxational effects; S.K. Ghoshal and S. Dattagupta, Pramana 51, 519 - 538 (1998).
67
3d model of strain ordering in steel: I. Static effects; S.K. Ghoshal and S. Dattagupta, Pramana 51, 519 - 538 (1998).
66
Dynamic susceptibility of a model quantum glass; V. Banerjee and S. Dattagupta, J. Phys. C 10, 8351-8364(1998).
65
Theory of relaxation of magnetic clusters in a Stern-Gerlach set up; S. Dattagupta and S.D. Mahanti, Phys. Rev. B 57, 10244 - 10247 (1998).
64
Phonon-assisted asymmetric tunneling in a double well potential - consequences for neutron scattering and diffusion; S. Dattagupta and H.R. Schober, Phys. Rev. B 57, 7606 - 7612 (1998).


1997
63
Landau diamagnetism in a dissipative and confined system; S. Dattagupta and J. Singh, Physical Review letters 79, 961 - 965 (1997).
62
Dielectric relaxation in a proton glass; V. Banerjee and S. Dattagupta, Phase Transitions 62, 233 - 243 (1997).


1996
61
Stochastic motion of charged particle in a magnetic field II. Quantum Brownian treatment; S. Dattagupta and J. Singh, Pramana 47, 211 - 224 (1996).
60
Stochastic motion of charged particle in a magnetic field I. Classical treatment; J. Singh and S. Dattagupta, Pramana 47, 199 - 210 (1996).


1995
59
Ferroelasticity in Y-Ba-Cu-O. II. Relaxation effects; S.K. Ghoshal and S. Dattagupta, Phase Transitions 54, 181 - 191 (1995).
58
Hysteresis in a quantum spin model; V. Banerjee, S. Dattagupta and P. Sen, Phys. Rev. E 52, 1436 - 1446 (1995).
57
Ferroelasticity in Y-Ba-Cu-O; S. Dattagupta and S.K. Ghoshal, Phase Transitions 54, 95 - 108 (1995).


1994
56
Analysis of AC susceptibility data in a quantum spin glass; V. Banerjee and S. Dattagupta, Phys. Rev. B 50, 9942 - 9950 (1994).
55
A stochastic model for transient magnetic fields as observed by perturbed angular distribution of gamma rays; T. Qureshi and S. Dattagupta, Z. Phys. D 31, 135 - 142 (1994).
54
Analysis of spectroscopic data in Kondo systems; T. Qureshi and S. Dattagupta, Phys. Rev. B 49, 12848 - 12859 (1994).
53
Phase ordering dynamics in a gravitational field; S. Puri, N. Parekh and S. Dattagupta, J. Stat. Phys. 75, 839 - 857 (1994).


1993
52
Spring-defect model of structural phase transition in YBa_2 Cu_3 O_(7−δ); S. Dattagupta and S.K. Ghoshal, Solid State Commns. 88, 547 - 551 (1993).
51
Relaxational dynamics of quantum spin glases; S. Dattagupta, B. Tadic, R. Pirc, and R. Blinc, Phys. Rev. B 47, 8801 - 8808 (1993).
50
Interplay of orientational order and viscoelasticity in supercooled liquids near the glass transition; S. Dattagupta and L.A. Turski, Phys. Rev. E 47, 1222 - 1229 (1993).
49
Quantum diffusion of muons in metals; T. Qureshi and S. Dattagupta, Phys. Rev. B 47, 1092 - 1095 (1993).


1992
48
Dynamical scaling in anisotropic phase separating systems in a gravitational field; S. Puri, K. Binder and S. Dattagupta, Phys. Rev. B 46, 98 - 107 (1992).
47
The Langevin dynamics of vibrated powders; A. Mehta, R.J. Needs and S. Dattagupta, J. Statistical Physics 68, 1131 - 1141 (1992).
46
Kinetic rate law for a Ø4-model in the order-disorder limit; S. Padlewski and S. Dattagupta, J. Phys. Condensed Matter 4, 4373 - 4386 (1992).


1991
45
Tunneling in proton glasses: stochastic theory of lineshape; S. Dattagupta, B. Tadic, R. Pirc and R. Blinc, Phys. Rev. B 44, 4387 - 4396 (1991).
44
Rate equation for atomic ordering in meanfield Theory II. general considerations; S. Dattagupta, V. Heine, S. Marais and E. Salje, J. Phys. Condensed Matter 3, 2963 - 2984 (1991).
43
Rate equation for atomic ordering in meanfield theory I. uniform case; S. Dattagupta, V. Heine, S. Marais, and E. Salje, J. Phys. Condensed Matter 3, 2963-2984 (1991).
42
Dynamics of an impurity spin coupled to a spin-boson dissipative system; T. Qureshi and S. Dattagupta, J. Phys. Condensed Matter 3, 1079-1087 (1991).


1990
41
Relaxation behaviour of biased two-level systems, in metals in the weak-damping limit; T. Qureshi, nd S. Dattagupta, Pramana 35, 579-591 (1990).


1989
40
The structure factor for neutron scattering from a two-state system in metals; S. Dattagupta, H. Grabert and R. Jung, J. Phys. Condensed Matter 1, 1405 - 1422 (1989).


1987
39
Mössbauer spectrum for diffusing atoms including fluctuating hyperfine interactions; S. Dattagupta and K. Schroeder, Phys. Rev. B 35, 1525-1546 (1987).


1986
38
Structure factor for neutron scattering from tunneling systems in metals; H.G. Grabert, S. Linkwitz, S. Dattagupta, and U. Weiss, Europhys. Lett. 2, 631-638 (1986).


1985
37
Monte-Carlo calculations of switching statistics of a two-mode laser; K.P.N. Murthy with S. Dattagupta, Phys. Rev. A 32, 3481-3489 (1985).
36
Orientational order in liquids - a possible scenario of freezing; S. Dattagupta and L.A. Turski, Phys. Rev. Lett. 54, 2359-2362 (1985).
35
The Boltzmann-Lorentz model of collisional broadening of spectra; S. Dattagupta and L.A. Turski, Phys. Rev. A 32, 1439-1446 (1985).
34
Neutron scattering from a quantum oscillator subject to noise; S. Dattagupta and G. Reiter, Phys. Rev. A 31, 1034-1039 (1985).


1984
33
Nonequilibrium response of a disordered Ising chain; S. Dattagupta, R. Vaidyanathan and R. Indira, Zeit. Phys., B 57, 319-328 (1984).
32
Relaxation behaviour of single domain magnetic particles; G.S. Agarwal, S. Dattagupta and K.P.N. Murthy, J. Phys. C 17, 6869-6876 (1984).
31
Brownian motion of a quantum system; S. Dattagupta, Phys. Rev. A 30, 1525-1527 (1984).
30
Linear response analysis of Gorsky relaxation of light interstitials in the presence of ordering; S. Dattagupta and R. Ranganathan, J. Phys. F 14, 1417-1429 (1984).


1983
29
Non-equilibrium susceptibility of superparamagnetic particles; Deepak Kumar and S.Dattagupta, Phys C. 16, 3779-3794 (1983).


1982
28
Strain ordering in b.c.c. metals and the associated anelasticity II. Effect of random interstitial arrangement; S. Dattagupta, J. Phys. F 12, 1363-1368 (1982).
27
Strain ordering in b.c.c. metals and the associated anelasticity; S. Dattagupta, Radha Balakrishnan and Radha Ranganathan, J. Phys. F 12, 1345-1362 (1982).
26
Stochastic model of muon diffusion in the presence of traps: nonsecular effects on spin depolarization; S. Dattagupta and B. Purniah, Zeit, Phys. B 46, 331-339 (1982).
25
Higher order phase transitions in systems far from equilibrium-bicriticality and tetracriticality in two-mode lasers; G.S. Agarwal and S. Dattagupta, Phys. Rev. A 26, 880-887 (1982).


1981
24
Model for vibrational relaxation: pure dephasing and depopulation; A.K. Sood and S. Dattagupta, Pramana 17, 315-326 (1981).
23
Generalized M-diffusion model of molecular rotation, calculation of dipole correlation function; S. Dattagupta and A.K. Sood, Zeit. Phys. B 44, 85-89 (1981).
22
Raman study of orientational disorder in potash alum; A.K. Sood, A.K. Arora, S. Dattagupta, and G. Venkataraman, J. Phys. C 14, 5215-5224 (1981).
21
Gorsky relaxation in the presence of traps; V. Balakrishnan and S. Dattagupta, Zeit. Phys. B 42, 13-21 (1981).


1980
20
Signal-to-noise enhancement of lock-in amplifiers; K. Neelakantan, S. Dattagupta and K.P. Rajappan, Rev. Sci. Instn. 51, 250-251 (1980).


1979
19
Analysis of ultrasonic anomaly in V3 Si; S. Dattagupta and G. Venkataraman, Pramana 13, 205-218 (1979).
18
Theory of ultrasonic scattering by grains in polycrystals; R. Ranganathan and S. Dattagupta, Phys. Stat. Sol.(a) 54, 537-548 (1979).
17
Model for infrared and Raman Studies of molecular rotations in liquids and gases; S. Dattagupta and A.K. Sood, Pramana 13, 423-445 (1979).


1978
16
Analysis of signal-to-noise enhancement of box-car averagers; S. Dattagupta and K. Neelakantan, Pramana 11, 295-306 (1978).
15
A Stochastic theory of anelastic creep; V. Balakrishnan, S. Dattagupta and G. Venkataraman, Phil. Mag. 37, 65-84 (1978).


1977
14
Breakdown of the 'white-noise approximation' in the Mössbauer relaxation spectra: the case of Cs2 NaYbCl8; S. Dattagupta, G.K. Shenoy, B.D. Dunlap, and L. Asch, Phys. Rev. B 16, 3893-3902 (1977).
13
Effect of collisions on spectral lines in gases; S. Dattagupta, Pramana 9, 203-221 (1977).
12
Stochastic model of classical bath variables and its influence on lineshape expressions; S. Dattagupta, Phys. Rev. B 16, 158-163 (1977).
11
Global phase diagram for a three-component model; D. Furman, S. Dattagupta and R.B. Griffiths, Phys. Rev. 15, 441-464 (1977).
10
Self-Interstitials trapped at Co impurities in electron - irradiated Al: theoretical study of the static and dynamic quadrupolar interactions on Mössbauer lineshape; S. Dattagupta, Sol. St. Commns. 24, 19-22 (1977).


1976
9
Calculating Mössbauer-paramagnetic relaxation spectra without the "White-noise approximation"; G.K. Shenoy, B.D. Dunlap, S. Dattagupta, and L. Asch, Phys. Rev. Lett. 37, 539-542 (1976).
8
Spin-relaxation spectra of Γ4 quartet; G.K. Shenoy, B.D. Dunlap, S. Dattagupta, and L. Asch, Jour. de Phys. Colloq. C 6, 85-87 (1976).
7
Effect of molecular motions in liquids on Mössbauer relaxation spectra; S. Dattagupta, Phys. Rev. B 14, 1329-1332 (1976).
6
Stochastic theory of spin relaxations in liquids; S. Dattagupta and M. Blume, Phys. Rev. A 14, 480-494 (1976).
5
Study by Mössbauer effect of diffusion of interstitials (C or N) in austenite, a theoretical treatment; S. Dattagupta, Phil. Mag. 33, 59 (1976).


1975
4
Effects of off-diagonal hyperfine interaction on Mössbauer relaxation spectra; S. Dattagupta, Phys. Rev. B 12, 3584 - 3595 (1975).
3
Effect of nuclear motion on Mössbauer relaxation spectra; S. Dattagupta, Phys. Rev. B 12, 47-57 (1975).


1974
2
Stochastic theory of lineshape, II. Nonsecular effects in the EPR spectrum of CO2- in calcite; S. Dattagupta and M. Blume, Phys. Rev. B 10, 4551-4559 (1974).
1
Stochastic theory of line shape, I. Nonsecular effects in the strong collision model; S. Dattagupta and M. Blume, Phys. Rev. B 10, 4540-4550 (1974).