16 citations · 28 across the 2 of their papers we have counts for
2 papers
cond-mat.str-el2008★ 12 cited
Twisted Order Parameter applied to Dimerized Ladders
J. Almeida, M. A. Martin-Delgado, G. Sierra
We apply the twisted order parameter (TOP) for dimerized quantum spin ladders to locate the critical phases that separate gapped phases representing quantum spin liquids of various…
cond-mat.str-el2007★ 16 cited
Critical Lines and Massive Phases in Quantum Spin Ladders with Dimerization
Javier Almeida, M. A. Martin-Delgado, G. Sierra
We determine the existence of critical lines in dimerized quantum spin ladders in their phase diagram of coupling constants using the finite-size DMRG algorithm. We consider both s…