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cond-mat1995
A pair of interacting spins coupled to an environmental sea: dissipation and mutual decoherence
M. Dube, P. C. E. Stamp
We consider the quantum dynamics of two spin-1/2 systems, each coupled to a bath of oscillators, so that a bath-mediated coupling is generated between the spins. We find that the i…
cond-mat1995
Quantum Coherence in Magnetic Grains
N. V. Prokof'ev, P. C. E. Stamp
We consider a model of the dynamics of a magnetic grain, incorporating interactions with nuclear and paramagnetic spins, conduction electrons, and phonons. Decoherence comes both f…
cond-mat1995
Decoherence in the Spin Bath
N. V. Prokof'ev, P. C. E. Stamp
We develop a mathematical description of the decoherence caused by "spin baths", such as nuclear spins or magnetic impurities. In contrast to the usual oscillator bath models of qu…