Nonadditive entropy: The concept and its use
نویسندگان
چکیده
منابع مشابه
Nonadditive Conditional Entropy and Its Significance for Local Realism
Based on the form invariance of the structures given by Khinchin’s axiomatic foundations of information theory and the pseudoadditivity of the Tsallis entropy indexed by q , the concept of conditional entropy is generalized to the case of nonadditive (nonextensive) composite systems. The proposed nonadditive conditional entropy is classically nonnegative but can be negative in the quantum conte...
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15 صفحه اولExtensive nonadditive entropy in quantum spin chains
We present details on a physical realization, in a many-body Hamiltonian system, of the abstract probabilistic structure recently exhibited by Gell-Mann, Sato and one of us (C.T.), that the nonadditive entropy Sq = k[1−Trρ̂q]/[q− 1] (ρ̂ ≡ density matrix; S1 = −kTrρ̂ ln ρ̂) can conform, for an anomalous value of q (i.e., q 6= 1), to the classical thermodynamical requirement for the entropy to be ext...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2009
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2009-10799-0