2 papers
cond-mat1996
Dynamical Nonlinear Optic Coefficients from the Symmetrized Density Matrix Renormalization Group Method
Swapan K. Pati, S. Ramasesha, Z. Shuai +1
We extend the symmetrized density matrix renormalization group (SDMRG) method to compute the dynamic nonlinear optic coefficients for long chains. By computing correction vectors i…
cond-mat1996
Symmetrized DMRG Method for Excited States of Hubbard Models
S. Ramasesha, Swapan K. Pati, H. R. Krishnamurthy +2
We extend the density matrix renormalization group method to exploit Parity, (rotation by ) and electron-hole symmtries of model Hamiltonians. We demonstrate the power of…