Drude weight in systems with open boundary conditions
Marcos Rigol and B. Sriram Shastry
Phys. Rev. B 77, 161101(R) (2008) - Published 11 April, 2008
Test of the low-energy model for one-dimensional interacting Fermi systems
Andrey V. Chubukov, Dmitrii L. Maslov, and Fabian H. L. Essler
Phys. Rev. B 77, 161102(R) (2008) - Published 14 April, 2008