23 citations · 24 across the 2 of their papers we have counts for
2 papers
cond-mat.stat-mech2008★ 1 cited
Gap Estimation by means of Hyperbolic Deformation
Hiroshi Ueda, Hiroki Nakano, Koichi Kusakabe +1
We present a way of numerical gap estimation applicable for one-dimensional infinite uniform quantum systems. Using the density matrix renormalization group method for a non-unifor…
quant-ph2008★ 23 cited
Hyperbolic Deformation on Quantum Lattice Hamiltonians
Hiroshi Ueda, Tomotoshi Nishino
A group of non-uniform quantum lattice Hamiltonians in one dimension is introduced, which is related to the hyperbolic -dimensional space. The Hamiltonians contain only near…