131 citations · 703 across the 24 of their papers we have counts for
24 papers
Cluster Mean Field plus Density Matrix Renormalization theory for the Bose Hubbard Model
Pallavi P. Gaude, Ananya Das, Ramesh V. Pai
We develop a novel approach to understand the phases of one-dimensional Bose-Hubbard models. We integrate the simplicity of the mean-field theory and the numerical power of the den…
Random-Phase-Approximation Excitation Spectra for Bose-Hubbard Models
Jamshid Moradi Kurdestany, Ramesh V. Pai, Rahul Pandit
We obtain the excitation spectra of the following three generalized Bose-Hubbard (BH) models: (1) a two-species generalization of the spinless BH model, (2) a single-species, spin-…
Quantum phases of attractive bosons on a Bose-Hubbard ladder with three-body constraint
Manpreet Singh, Tapan Mishra, Ramesh V. Pai +1
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 t…
Phases, transitions, and patterns in the one-dimensional Extended Bose-Hubbard model
Jamshid Moradi Kurdestany, Ramesh V. Pai, Subroto Mukerjee +1
We carry out an extensive study of the phase diagram of the extended Bose Hubbard model, with a mean filling of one boson per site, in one dimension by using the density matrix ren…
Supersolid in a one-dimensional model of hard-core bosons
Tapan Mishra, Ramesh V. Pai, Subroto Mukerjee
We study a system of hardcore boson on a one-dimensional lattice with frustrated next-nearest neighbor hopping and nearest neighbor interaction. At half filling, for equal magnitud…
Hardcore bosons in a zig-zag optical superlattice
Arya Dhar, Tapan Mishra, Ramesh V. Pai +2
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 producing…