48 citations · 107 across the 6 of their papers we have counts for
6 papers
Static and Dynamical Characterization of Ground State Phases Induced by Frustration and Magnetic Field in the Spin-1 Orthogonal Dimer Chain
Ernest Ong, Dhiman Bhowmick, Sharoz Schezwen +1
The spin- orthogonal dimer chain is investigated using the Density Matrix Renormalization Group (DMRG) algorithm. A transformation to a basis that uses the local eigenstates of…
Field-induced Peierls phase in Heisenberg spins coupled to quantum phonons
Shifeng Cui, Wenan Guo, G. G. Batrouni +1
Spin-Peierls transition occurs in a one-dimensional Heisenberg antiferromagnetic model with single-ion anisotropy, coupled to finite frequency bond phonons, in a magnetic fie…
Quantum Hall Bilayer as Pseudospin Magnet
O. Kyriienko, K. Wierschem, P. Sengupta +1
We revisit the physics of electron gas bilayers in the quantum Hall regime [Nature, 432 (2004) 691; Science, 305 (2004) 950], where transport and tunneling measurements provided ev…
Finite-temperature phase transition to plateau phase in a S=1/2 XXZ model on Shastry-Sutherland Lattices
T. Suzuki, P. Sengupta, Y. Tomita +1
We study the finite-temperature transition to the magnetization plateau in a model of interacting spins with longer range interactions and strong exchange anisotrop…
Phase coherence, visibility, and the superfluid--Mott-insulator transition on one-dimensional optical lattices
P. Sengupta, M. Rigol, G. G. Batrouni +2
We study the phase coherence and visibility of trapped atomic condensates on one-dimensional optical lattices, by means of quantum Monte-Carlo simulations. We obtain structures in…
Peierls transition in the presence of finite-frequency phonons in the one-dimensional extended Peierls-Hubbard model at half-filling
P. Sengupta A. W. Sandvik, D. K. Campbell
We report quantum Monte Carlo (stochastic series expansion) results for the transition from a Mott insulator to a dimerized Peierls insulating state in a half-filled, 1D extended H…