173 citations · 367 across the 13 of their papers we have counts for
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Matrix Product Approach to Conjugated Polymers
M. A. Martin-Delgado, G. Sierra, S. Pleutin +1
The Matrix Product method (MPM) has been used in the past to generate variational ansatzs of the ground state (GS) of spin chains and ladders. In this paper we apply the MPM to stu…
A Density Matrix Renormalization Group Approach to an Asymptotically Free Model with Bound States
M. A. Martin-Delgado, G. Sierra
We apply the DMRG method to the 2 dimensional delta function potential which is a simple quantum mechanical model with asymptotic freedom and formation of bound states. The system…
The dimer-RVB State of the Four-Leg Heisenberg Ladder: Interference among Resonances
M. Roncaglia, G. Sierra, M. A. Martin-Delgado
We study the ground state of the 4-leg spin ladder using a dimer-RVB ansatz and the Lanczos method. Besides the well known resonance mechanism between valence bond configurations w…
The Density Matrix Renormalization Group applied to single-particle Quantum Mechanics
M. A. Martin-Delgado, G. Sierra, R. M. Noack
A simplified version of White's Density Matrix Renormalization Group (DMRG) algorithm has been used to find the ground state of the free particle on a tight-binding lattice. We gen…