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Browsing Physics by Author "Alavani, B.K."

Browsing Physics by Author "Alavani, B.K."

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  • Cluster mean field theory for 2-dimensional spin-1 Bose Hubbard model 
    Alavani, B.K.; Das, A.; Pai, R.V. (Journal of Physics B: Atomic, Molecular and Optical Physics. 51(14); 2018; ArticleID_145302.)
    The Cluster Mean Field Theory(CMFT) for 2-dimensional Spin-1 Bose-Hubbard model is applied to study the superfluid (SF) to Mott insulator (MI) phase transitions and various magnetic phases, that arise in the presence of ...
  • Contrasting effects of Sb and Bi doping on the photocatalytic properties of Cs sub(2)AgInCl sub(6): Role of Bi in rapid degradation of organic dyes 
    Shaikh, I.A.; Ahmed, Z.; Alavani, B.K.; Bhattacharyya, S.; Hathwar, V.R. (Crystal Growth & Design. NYP; 2025; NYP.)
    Lead-free halide perovskites are attractive materials for photocatalytic applications. The direct and indirect bandgap nature of materials influenced their photocatalytic properties, such that the indirect bandgap enhanced ...
  • Random phase approximation and cluster mean field studies of hard core Bose Hubbard model 
    Alavani, B.K.; Gaude, P.P.; Pai, R.V. (AIP Conference Proceedings. 1942(1); 2018; ArticleID_030005.)
    We investigate zero temperature and finite temperature properties of the Bose Hubbard Model in the hard core limit using Random Phase Approximation (RPA) and Cluster Mean Field Theory (CMFT). We show that our RPA calculations ...
  • Revealing discontinuous and continuous quantum phase transitions in shaken optical lattices 
    Shettigar, S.S.; Alavani, B.K.; Pai, R.V. (Physica Scripta. 99(10); 2024; ArticleID_105406.)
    We perform the cluster mean-field with density matrix renormalization (CMFT+DMRG) calculation on the two-band extended Bose-Hubbard model to uncover the physics behind the discontinuous transitions observed in the ...
  • Spectral weight of excitations in Bose Hubbard model 
    Alavani, B.K.; Pai, R.V. (AIP Conference Proceedings. 1832; 2017; Article ID 030009.)
    We obtain excitation spectra in the superfluid and the Mott Insulator phases of Bose Hubbard model near unit filling within Random Phase Approximation (RPA) and calculate its spectral weight. This gives a transparent ...
  • Spin-1 bosons in optical superlattice 
    Gaonker, C.G.F.; Alavani, B.K.; Das, A.; Pai, R.V. (AIP Conference Proceedings. 2115(1); 2019; ArticleID_030016.)
    In this paper, we analyze superfluid, insulator and various magnetic phases of ultracold spin-1 bosonic atoms in two-dimensional optical superlattices. Our studies have been performed using Cluster Mean Field Theory. ...

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