Publication Date:
2017-12-13
Description:
Author(s): R. J. Sánchez and V. K. Varma We revisit the numerical problem of computing the high temperature spin stiffness, or Drude weight, D of the spin- 1 / 2 X X Z chain using exact diagonalization to systematically analyze its dependence on system symmetries and ensemble. Within the canonical ensemble and for states with zero total magneti... [Phys. Rev. B 96, 245117] Published Tue Dec 12, 2017
Keywords:
Electronic structure and strongly correlated systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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