Complete Positivity on the Subsystems Level
نویسندگان
چکیده
منابع مشابه
Axiomatizing complete positivity
There are two ways to turn a categorical model for pure quantum theory into one for mixed quantum theory, both resulting in a category of completely positive maps. One has quantum systems as objects, whereas the other also allows classical systems on an equal footing. The former has been axiomatized using environment structures. We extend this axiomatization to the latter by introducing decoher...
متن کاملBeyond complete positivity
We provide a general and consistent formulation for linear subsystem quantum dynamical maps, developed from a minimal set of postulates, primary among which is a relaxation of the usual, restrictive assumption of uncorrelated initial system-bath states. We describe the space of possibilities admitted by this formulation, namely that, far from being limited to only completely positive (CP) maps,...
متن کاملTesting Complete Positivity
We study the modified dynamical evolution of the neutral kaon system under the condition of complete positivity. The accuracy of the data from planned future experiments is expected to be sufficiently precise to test such a hypothesis.
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having conducted the experiment and analysed the data, the researcher computed the groups mean scores and variances for the test relating to the research question. as the final atep, a t-test was conodonted for the hypothesis. as noted earlier, the significance level was determined at .05 and .01 respectively. the observed t-value was higher than the critical t-value at. 5 and .01 levels. conse...
15 صفحه اولExperimental Limits on Complete Positivity from the K-k System
Available data on measured observables allow deriving estimates for some of the phenomenological parameters that characterize the timeevolution and decay of the neutral kaon system based on the hypothesis of complete positivity. The present experimental uncertainties are still too large to permit a full test of complete positivity.
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ژورنال
عنوان ژورنال: International Journal of Theoretical Physics
سال: 2018
ISSN: 0020-7748,1572-9575
DOI: 10.1007/s10773-018-3864-6