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Reconstructing the thermal Green functions at real times from those at imaginary times

Cuniberti, Gianaurelio and Micheli, Enrico De and Viano, Giovanni Alberto (2001) Reconstructing the thermal Green functions at real times from those at imaginary times. Communications in Mathematical Physics 216 (1), pp. 59-83.

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Other URL: http://dx.doi.org/10.1007/s002200000324


Abstract

By exploiting the analyticity and boundary value properties of the thermal Green functions that result from the KMS condition in both time and energy complex variables, we treat the general (non-perturbative) problem of recovering the thermal functions at real times from the corresponding functions at imaginary times, introduced as primary objects in the Matsubara formalism. The key property on ...

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Item Type:Article
Date:January 2001
Institutions:Physics > Institute of Theroretical Physics > Retired Professors > Group Gianaurelio Cuniberti
Identification Number:
ValueType
cond-mat/0109175arXiv ID
10.1007/s002200000324DOI
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Redakteur Physik
Deposited On:20 Mar 2007
Last Modified:13 Mar 2014 10:02
Item ID:1724
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