Decoherence time in self-induced decoherence

A general method for obtaining the decoherence time in self-induced decoherence is presented. In particular, it is shown that such a time can be computed from the poles of the resolvent or of the initial conditions in the complex extension of the Hamiltonian's spectrum. Several decoherence times are estimated: $10^{-13}-$ $10^{-15}s$ for microscopic systems, and $10^{-37}-10^{-39}s$ for macroscopic bodies. For the particular case of a thermal bath, our results agree with those obtained by the einselection (environment-induced decoherence) approach.Comment: 11 page

Anatomy and Neurophysiology of the Taste System in Aged Animals a

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72005/1/j.1749-6632.1989.tb20989.x.pd

Protein Production and Release by Dispersed Rat Submandibular Gland Cells In Vitro After Adrenergic Stimulation

Enzymatically dispersed cell aggregates were prepared from rat submandibular glands. Cells were responsive to α- and β-adrenergic agonists, as measured by net K+ release and radiolabeled protein secretion, respectively. Protein production by submandibular gland cells was constant during the 90 min experimental period. Specific agonist and antagonist experiments demonstrated that both α- and β-adrenergic receptor stimulation were required for maximum secretion of newly synthesized protein. Proteins were radiolabeled with [35S] methionine and both soluble cell and secreted proteins examined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and autofluorography. A broad size range of newly synthesized proteins was detected (Mr∼104−5 × 105). Adrenergic stimulation (1-epinephrine) specifically increased the secretion of certain radiolabeled proteins and, in addition, resulted in both cellular and secreted proteins with electrophoretic characteristics distinct from that of control preparations