Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2007-09-10
Physical Review E 76, 046223 (2007)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Submitted to Phys. Rev. E
Scientific paper
10.1103/PhysRevE.76.046223
We investigate the decoherence properties of a central system composed of two spins 1/2 in contact with a spin bath. The dynamical regime of the bath ranges from a fully integrable integrable limit to complete chaoticity. We show that the dynamical regime of the bath determines the efficiency of the decoherence process. For perturbative regimes, the integrable limit provides stronger decoherence, while in the strong coupling regime the chaotic limit becomes more efficient. We also show that the decoherence time behaves in a similar way. On the contrary, the rate of decay of magnitudes like linear entropy or fidelity does not depend on the dynamical regime of the bath. We interpret the latter results as due to a comparable complexity of the Hamiltonian for both the integrable and the fully chaotic limits.
Dukelsky Jorge
Molina Alfaro R.
Relano Antonio
No associations
LandOfFree
Decoherence induced by an interacting spin environment in the transition from integrability to chaos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Decoherence induced by an interacting spin environment in the transition from integrability to chaos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoherence induced by an interacting spin environment in the transition from integrability to chaos will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-656203