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Browsing by Author "Mishra, T"

Browsing by Author "Mishra, T"

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  • Hard-Core Bosons in a Zig-Zag Optical Superlattice 
    Dhar, A; Mishra, T; Pai, R. V; Mukerjee, S; Das, B. P (American Physical Society, 2013-11-21)
    We study a system of hard-core bosons at half-filling in a one-dimensional optical superlattice. The bosons are allowed to hop to nearest- and next-nearest-neighbor sites. We obtain the ground-state phase diagram as a ...
  • Induced supersolidity in a mixture of normal and hard-core bosons 
    Mishra, T; Pai, R. V; Das, B. P (The American Physical Society, 2010-01)
    We present a scenario where a supersolid is induced in one of the components of a mixture of two species bosonic atoms where there are no long-range interactions. We study a system of normal and hard-core boson mixture ...
  • Phase diagram of a bosonic ladder with two coupled chains 
    Sethi Luthra, M; Mishra, T; Pai, R. V; Das, B. P (American Physical Society, 2008-10)
    We study a bosonic ladder with two coupled chains using the finite size density matrix renormalisation group method. We show that in a commensurate bosonic ladder the critical on-site interaction ($U_C$) for the superfluid ...
  • Phase separation in a two species Bose mixture 
    Mishra, T; Pai Ramesh, V; Das, B. P (The American Physical Society, 2007-07)
    We study the ground state quantum phase diagram for a two species Bose mixture in a one-dimensional optical lattice using the finite size density matrix renormalization group(FSDMRG) method. We discuss our results for ...
  • Phase-separated charge-density-wave phase in the two-species extended Bose-Hubbard model 
    Mishra, T; Sahoo, B. K; Pai, R. V (The American Physical Society, 2008-07)
    We study the quantum phase transitions in a two component Bose mixture in a one-dimensional optical lattice. The calculations have been performed in the framework of the extended Bose-Hubbard model using the finite size ...
  • Quantum phases of attractive bosons on a Bose-Hubbard ladder with three-body constraint 
    Singh, Manpreet; Mishra, T; Pai, Ramesh V; Das, B. P (The American Physical Society, 2014-07)
    We obtain the complete quantum phase diagram of bosons on a two-leg ladder in the presence of attractive onsite and repulsive interchain nearest-neighbor interactions by imposing the onsite three-body constraint. We find ...
  • Quantum phases of ultracold bosonic atoms in a one-dimensional optical superlattice 
    Dhar, A; Mishra, T; Pai, R. V; Das, B. P (American Physical Society, 2011-05)
    We analyze various quantum phases of ultracold bosonic atoms in a periodic one-dimensional optical superlattice. Our studies have been performed using the finite-size density-matrix renormalization group method in the ...
  • Signatures of the superfluid–to–Mott-insulator transition in cold bosonic atoms in a one-dimensional optical lattice 
    Ramanan, S; Mishra, T; Luthra, M. S; Pai, R. V; Das, B. P (The American Physical Society, 2009-01)
    We study the Bose-Hubbard model using the finite size density matrix renormalization group method. We obtain a complete phase diagram for a system in the presence of a harmonic trap and compare it with that of the homogeneous ...
  • Supersolid and solitonic phases in one-dimensional extended Bose-Hubbard model 
    Mishra, T; Pai, R. V; Ramanan, S; Luthra, M. S; Das, B. P (The American Physical Society, 2009-10)
    We report our findings on quantum phase transitions in cold bosonic atoms in a one dimensional optical lattice using the finite size density matrix renormalization group method in the framework of the extended Bose-Hubbard ...
  • Three-body on-site interactions in ultracold bosonic atoms in optical lattices and superlattices 
    Singh, M; Dhar, A; Mishra, T; Pai, R. V; Das, B. P (American Physical Society, 2012-05)
    The Mott-insulator-superfluid transition for ultracold bosonic atoms in an optical lattice has been extensively studied in the framework of the Bose-Hubbard model with two-body on-site interactions. In this paper, we analyze ...

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