Decoherence at the level of eigenstates
Abstract
An eigenstate decoherence hypothesis states that each individual eigenstate of a large closed system is locally classicallike. We extend this hypothesis to account for a typically extremely short time scale of decoherence. The extension implies that nondiagonal matrix elements of certain operators  quantumness witnesses  are suppressed as long as the energy difference between corresponding eigenstates is smaller than the inverse decoherence time.
 Publication:

arXiv eprints
 Pub Date:
 December 2017
 arXiv:
 arXiv:1712.04384
 Bibcode:
 2017arXiv171204384L
 Keywords:

 Quantum Physics