24 citations · 24 across the 3 of their papers we have counts for
4 papers
Gapless and Massive 1D Singlet Dispersion Channel in Infinite Spin-1/2 Ladders ---Infinite Quasi-1D Entanglement Perturbation Theory for Excitation
Lihua Wang, Aslam Parvej, D. ChangMo Yang +1
We solve for the elementary excitation in infinite quasi-1D quantum lattices by extending the recently developed infinite quasi-1D entanglement perturbation theory. The wave functi…
Multipolar phase in frustrated spin-1/2 and 1 chains
Aslam Parvej, Manoranjan Kumar
The spin chain model with nearest neighbor and next nearest neighbor anti-ferromagnetic interaction is one of the most popular frustrated magnetic models. Thi…
Numerical study of incommensurate and decoupled phases of spin-1/2 chains with isotropic exchange J1, J2 between first and second neighbors
Zoltán G. Soos, Aslam Parvej, Manoranjan Kumar
The spin-1/2 chain with isotropic exchange J1, J2 > 0 between first and second neighbors is frustrated for either sign of J1 and has a singlet ground state (GS) for J1/J2 …
Level crossing, spin structure factor and quantum phases of the frustrated spin-1/2 chain with first and second neighbor exchange
Manoranjan Kumar, Aslam Parvej, Zoltán G. Soos
The spin-1/2 chain with isotropic Heisenberg exchange , between first and second neighbors is frustrated for either sign of J1. Its quantum phase diagram has critica…