2 citations · 2 across the 3 of their papers we have counts for
3 papers
cond-mat.str-el2008★ 2 cited
Quantum spin pump on a finite antiferromagnetic chain through bulk states
Nan-Hong Kuo, Sujit Sarkar, C. D. Hu
We studied the possibility of the spin pump in a S=1/2 antiferromagnetic chain. The spin chain is mapped into a fermion system and bosonization is utilized to transform the equatio…
cond-mat.mes-hall2008
Fractionally Quantized Cooper Pair Stair Case in Superconducting Quantum Dots
Sujit Sarkar
We study clean superconducting quantum dots (SQD) and also site dependent Josephson couplings, on site charging energies and the intersite interactions in presence of gate voltage.…
cond-mat.supr-con2008
Quantum Phase Analysis of Extended Bose-Hubbard Model
Manoranjan Kumar, Sujit Sarkar, S. Ramasesha
We have obtained the quantum phase diagram of one dimensional extended Bose-Hubbard model using the density-matrix renormalization group and Abelian bosonization methods for differ…