The conditional entropy in the microcanonical ensemble
نویسندگان
چکیده
منابع مشابه
Superstatistics Based on the Microcanonical Ensemble
with Ei the energy of the microstate labeled by i, β = 1/kBT the inverse temperature (T ), kB Boltzmann’s constant, and ZBG the partition function. The exponential term FBG = exp (−βE) is, of course, called the BG factor. Recently Beck and Cohen [3, 4] have advanced a generalization (called “superstatistics”) of this BG factor, assuming that the inverse temperature β is a stochastic variable. T...
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A derivation of the fluctuation-dissipation theorem for the microcanonical ensemble is presented using linear response theory. The theorem is stated as a relation between the frequency spectra of the symmetric correlation and response functions. When the system is not in the thermodynamic limit, this result can be viewed as an extension of the fluctuation-dissipation relations to a situation wh...
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چکیده ندارد.
15 صفحه اولEntanglement of a microcanonical ensemble
We replace time-averaged entanglement by ensemble-averaged entanglement and derive a simple expression for the latter. We show how to calculate the ensemble average for a two-spin system and for the JaynesCummings model. In both cases the time-dependent entanglement is known as well so that one can verify that the time average coincides with the ensemble average.
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ژورنال
عنوان ژورنال: Journal of Mathematical Physics
سال: 1975
ISSN: 0022-2488,1089-7658
DOI: 10.1063/1.522735