Superstability estimates for anharmonic systems |
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| Authors: | G Benfatto C Marchioro E Presutti M Pulvirenti |
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| Institution: | (1) Istituto Matematico dell'Università, Rome, Italy;(2) Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Rome, Italy;(3) Dipartimento di Matematica, Libera Università di Trento, Trento, Italy |
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| Abstract: | We consider an anharmonic crystal described by variablesS
x
,x 
d
,S
x
 , with one-body interaction  ¦S
x
¦
and nearest neighbor (n.n.) two body interaction ¦S
x
–S
y
¦ . We prove that, for  
d
bounded,  , where
is the correlation function for the free boundary condition Gibbs state in , >0 and are suitable constants independent of and . This generalizes previous results obtained in the case .Research partially supported by Consiglio Nazionale delle Ricerche. |
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| Keywords: | Statistical mechanics anharmonic crystal probability estimates for correlation functions DLR processes |
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