Operator-Based Truncation Scheme Based on the Many-Body Fermion Density Matrix

Siew-Ann Cheong, Christopher L. Henley

In [S. A. Cheong and C. L. Henley, cond-mat/0206196 (2002)], we found that the many-particle eigenvalues and eigenstates of the many-body density matrix ${\rho }_B$ of a block of $B$ sit…