Unnormalized nonextensive expectation value and zeroth law of thermodynamics


We show an attempt to establish the zeroth law of thermodynamics within the framework of nonextensive statistical mechanics based on the classic normalization Trρ^=1\texttt{Tr}\hat{\rho}=1 and the unnormalized expectation x=Trρ^qx^x=\texttt{Tr}\hat{\rho}^q\hat{x}. The first law of thermodynamics and the definition of heat and work in this formalism are discussed.Comment: 6 pages, no figure, RevTeX. To appear in Chaos, Solitons & Fractals (2002

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