Operator-based truncation scheme based on the many-body fermion density matrix

• Main Authors: Henley, Christopher L., Cheong, Siew Ann
• Format: Article
• Language: English
• Published: 2009
• Subjects: DRNTU::Science::Physics::Atomic physics::Solid state physics
• Online Access: https://hdl.handle.net/10356/90478; http://hdl.handle.net/10220/4601; http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:ISI_WOS_XML&id=doi:&genre=&isbn=&issn=1098-0121&date=2004&volume=69&issue=7&spage=&epage=&aulast=Cheong&aufirst=%20SA&auinit=SA&title=PHYSICAL%20REVIEW%20B&atitle=Operator%2Dbased%20truncation%20scheme%20based%20on%20the%20many%2Dbody%20fermion%20density%20matrix
• Institution: Nanyang Technological University

In an earlier work [S. A. Cheong and C. L. Henley, preceding paper], we derived an exact formula for the many-body density matrix ρ B of a block of B sites cut out from an infinite chain of noninteracting spinless fermions, and found that the many-particle eigenvalues and igenstates of ρ B can all b...