Geometric phase in the classical continuous antiferromagnetic Heisenberg spin chain
Radha Balakrishnan, A. R. Bishop, and R. Dandoloff
Phys. Rev. Lett. 64, 2107 (1990) - Published 30 April, 1990
Quantitative limits on the ability of a Maxwell demon to extract work from heat
Carlton M. Caves
Phys. Rev. Lett. 64, 2111 (1990) - Published 30 April, 1990