Implicit renormalization approach to the problem of Cooper instability
Implicit renormalization approach to the problem of Cooper instability
复制标题
库珀不稳定问题的隐式重整化方法
DOI:
10.1103/physrevb.100.064513
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发表时间:
2019
影响因子:
3.7
通讯作者:
Svistunov, Boris V.
中科院分区:
文献类型:
--
作者:
Chubukov, Andrey;Prokof'ev, Nikolay V.;Svistunov, Boris V.
In the vast majority of cases, superconducting transition takes place at exponentially low temperatureout of the Fermi liquid regime. We discuss the problem of determiningfrom known system properties at temperatures, and stress that this cannot be done reliably by following the standard protocol of solving for the largest eigenvalue of the original gap-function equation. However, within the implicit renormalization approach, the gap-function equation can be used to formulate an alternative eigenvalue problem, where solving leads to an accurate prediction for bothand the gap function immediately below. With diagrammatic Monte Carlo techniques, this eigenvalue problem can be solved without invoking the matrix inversion or even explicitly calculating the four-point vertex function.
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DOI:
--
发表时间:
2018
期刊:
JETP Letters : Journal of Experimental And Theoretical Physics Letters
影响因子:
--
作者:
M. V. Sadovskii
通讯作者:
M. V. Sadovskii
影响因子:
56.9
作者:
Prakash, Om;Kumar, Anil;Ramakrishnan, S.
通讯作者:
Ramakrishnan, S.
影响因子:
3.7
作者:
Klein, Avraham;Chubukov, Andrey
通讯作者:
Chubukov, Andrey
影响因子:
8.6
作者:
Lin, Xiao;Bridoux, German;Behnia, Kamran
通讯作者:
Behnia, Kamran
影响因子:
3.7
作者:
M. Gastiasoro;A. Chubukov;R. Fernandes
通讯作者:
R. Fernandes