Professor and Head of the Department
I am primarily interested in theoretical Condensed Matter Physics. Special interest has so far been in the physics of localization and de-localization of excitations in quasi-periodic, disordered and deterministic fractal lattices. Currently struggling to understand topological phase transition in quasi-one dimensional decorated lattice models with a hidden SSH character, and in the presence of an external perturbing field, a magnetic field for example. Together with it, spin polarized transport in quasi-one dimensional model systems, with emphasis on Chiral Induced Spin Selectivity (CISS) effect in molecular systems are occupying me. Flat, non-dispersive bands in quasi-one dimensional, and two dimensional model lattices have also kept me busy for some time now. Very recently, we could propose several random or deterministically disordered lattice topologies, where a minimal quasi one dimensionalty and/or an external magnetic field caused a complete de-localization of single particle states, much in contrast to the canonical case of Anderson localization. Such systems are currently being built in Heriott-Watt University in Edinburgh using ultra-fast Laser writing tecniques, and the preliminary experiments corroborate our work back in India.
M.Sc. Physics (Calcutta University, 1983)
Ph.D. (Saha Institute of Nuclear Physics/Calcutta University)
My Ph.D. work at SINP was on quasicrystalline lattices, their electronic spectra and related issues. In 1989 I joined the Scottish Church College as a Lecturer (called assistant Professor now). After that, I joined the theory group led by Prof. Balazs Georffey at H.H. Wills Physics Laboratory, University of Bristol, with a Commonwealth Post Doctoral Fellowship for one year. In 1996 I joined University of Kalyani as a Senior lecturer. Later I visited the group of Michael Schreiber at Technical University of Chemnitz, Germany in 2001, with a DAAD Fellowship for two months. Got invitations from Max Planck Institute in Dresden, Germany in 2005 and 2006, and workd as Guest scientist in the groups of Prof. Peter Fulde and Prof. Sergej Flach for a couple of months on each occasion.
In 2007, I got promoted to the position of Professor in University of Kalyani.
Visited Uppsala University for a month in May 2009 with a STINT grant, which followed by a visit to the Physics Department of the University of Warwick with a Royal Society grant under the India-UK Science Network, in June 2009.
ICTP, Trieste, in 2013. In 2017, I had the privilege of being invited for a talk and a short research stay in the group of Prof. Andreas Buchlietner in the University of Freiburg. Got invited to the Institute of Basic Sciences in South Korea for an international workshop.
In 2018, I visited the University of Warwick (UoW) as the India-lead, under the UGC-UKIERI grant that has been awarded jointly to the University of Kalyani (I am on lien from that Institution now) and the University of Warwick. The award followed a research proposal submitted jointly by myself and Prof. Rudolf Andreas Roemer in the Physics Department of UoW.
Joined Presidency University on August 31, 2018, and just before joining Presidency, I got the news of being selected as a Residential Fellow at UoW.
Research / Administrative Experience+
Upcoming International Conference
My research is in the field of disordered and quasi-periodic systems, including fractal lattices. Interest floats around localization, controlled de-localization of electronic or photonic states and transport. Currently, involved in Chiral Induced Spin Selectivity (CISS) effect shown by helical molecules. Working on simplified models to get the basics understood.
Collaborating wit the Photonics group at Heriott-Watt University and the Disordered Quantum Systems group in Warwick University to verify experimentally some of our theoretical works which predicted a complete violation of Anderson localization under suitable correlations.
Spin transport in mesoscopic model systems, with Rashba spin orbit coupling is another area which my group is working on.
REFEREE: of Physical Review Letters, Physical Review A, B and E, Journal of Physics:Condensed Matter, Europhysics Letters and all major international journals in Physics, for more that two decades.
Administrative Experience: Head, Department of Physics, two times, 2005-2007 and 2014-2016.
Chairperson, Central Purchase Committee, Kalyani University, since 2014 till leaving K.U.
Chairperson, UG Board of Studies, 2014-2016.
Chairperson, PG Board of Studies, 2014-2018 (August).
Others - usual responsibility that comes with seniority.
Teaching / Other Experience+
1. Discretization of Schroedinger Eqn:
2. About tight binding model
3. One dimensional chain and Graphene
4. More Tight binding
5. More and more tight binding
6. On Berry's Phase
7. Berry Himself writes this!
8. Berry's original paper in 1984:
9. Light through multilayers
10. On Localization of Light
11. Assignment-I (PG-Sem 2)
12. Assignment-2 (PG-Sem 2)
13. On Wannier States
14. Rolf Landauer's lovely paper
15. Assignment - II (Electrodynamics + Condensed Matter/Computational)
Major courses taught (only in Post Graduate classes in last 18 years): Quantum Mechanics, Mathematical Methods, Classical Mechanics, Electrodynamics, Condensed Matter Physics (General Course), Condensed Matter Physics (Special Paper).
UG ( 1989-2000 ) : Classical Mechanics, Electromagnetic Theory, Solid State Physics, Mathematical Methods.
Other experience: Interaction with high school and undergraduate students through workshops arranged by INSA and some of the Colleges in Kolkata, resource person in UGC sponsored Refresher Courses and in Refresher Courses for College Teachers by IOP, Bhubaneswar, for example.
Please see the CV uploaded here.
Post Graduate Supervision+
Please see the CV uploaded here.
Life Member of Indian Physical Society.
1. Mukherjee, A., Nandy, A., Sil, S., and Chakrabarti, A. (2020). Engineering topological phase transition and Aharonov-Bohm caging in a flux-staggered lattice Jour. Phys.:Condens. Matter 33, 035502 (2020).
2. Mukherjee, A., Roemer, R. A., and Chakrabarti, A., (2019). Spin selective Aharonov-Casher caging in a topological quantum network. Phys. Rev. B 100, 161108.
3. Mukherjee, A., Chakrabarti, A. and Roemer, R.A. (2018). Flux-driven and geometry-controlled spin filtering for arbitrary spins in aperiodic quantum networks. Phys. Rev. B 98, 075415 .
4. Maiti, S.K., Sil, S. and Chakrabarti, A. (2017). Phase controlled metal-insulator transition in multi-leg quasiperiodic optical lattices. Annals of Physics 382, 150.
5. Pal, B., Chakrabarti, A. and Roemer, R. A. (2016). Spin filter for arbitrary spins by substrate engineering. J. Phys.: Condens. Matter 28, 335301.
6. Nandy, A., Pal, B. and Chakrabarti, A. (2015). Flat band analogues and flux driven extended electronic states in a class of geometrically frustrated fractal networks . J. Phys.:Condensed Matter 27, 125501.
7. Pal, B., Maiti, S. K. and Chakrabarti, A. (2013). Complete absence of localization in a family of disordered lattices . Europhys. Lett. 102, 17004 .
8. Rodriguez, A., Chakrabarti, A. and Roemer, R. A. (2012). Controlled engineering of extended states in disordered systems. Phys. Rev. B 86, 085119 .
9. Sil, S., Maiti, S. K. and Chakrabarti, A. (2008). Metal-insulator transition in an aperiodic ladder network: an exact result . Phys. Rev. Lett. 101, 076803.
10. Chakrabarti, A., Karmakar, S. N. and Moitra, R. K. (1995). Role of a new type of correlated disorder in the extended electronic states in the Thue-Morse Lattice. Phys. Rev. Lett. 74, 1403.
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