596 citations
- Harish-Chandra Research InstituteIN57 papers
- Saha Institute of Nuclear PhysicsIN54 papers
- Bose InstituteIN46 papers
- Jadavpur UniversityIN43 papers
- Indian Statistical InstituteIN39 papers
- Variable Energy Cyclotron CentreIN28 papers
- Institute of Mathematical SciencesIN27 papers
- Université Libre de BruxellesBE27 papers
- Tata Institute of Fundamental ResearchIN26 papers
- Homi Bhabha National InstituteIN24 papers
- Indian Institute of AstrophysicsIN24 papers
- Indian Association for the Cultivation of ScienceIN21 papers
34 papers · 1 filter
Supersymmetric partners for the associated Lame potentials
David J Fernandez C, Asish Ganguly
The general solution of the stationary Schrodinger equation for the associated Lame potentials with an arbitrary real energy is found. The supersymmetric partners are generated by…
Entanglement of Formation is Non-monotonic with Concurrence-A Simple Proof
Indrani Chattopadhyay, Debasis Sarkar
In this paper we explore the non-monotonic nature of entanglement of formation with respect to concurrence for pure bipartite states. For pure bipartite system, one of the basic ph…
A note on dimension-5 operators in GUTs and their impact
Joydeep Chakrabortty, Amitava Raychaudhuri
Quantum gravity or string compactification can lead to effective dimension-5 operators in Grand Unified Theories which modify the gauge kinetic terms. We exhaustively discuss the g…
Isospectrality of conventional and new extended potentials, second-order supersymmetry and role of PT symmetry
B. Bagchi, C. Quesne, R. Roychoudhury
We develop a systematic approach to construct novel completely solvable rational potentials. Second-order supersymmetric quantum mechanics dictates the latter to be isospectral to…
Effect of external electric field on the charge density waves in one dimensional Hubbard superlattices
Jayeeta Chowdhury, S. N. Karmakar, Bibhas Bhattacharyya
We have studied the ground state of the one dimensional Hubbard superlattice structures with different unit cell sizes in the presence of electric field. Self consistent Hartree-Fo…
Many-body approach to low-lying collective excitations in a BEC approaching collapse
Anindya Biswas, Tapan Kumar Das
An approximate many-body theory incorporating two-body correlations has been employed to calculate low-lying collective multipole frequencies in a Bose-Einstein condensate containi…