Adaptive logarithmic discretization for numerical renormalization group methods
نویسندگان
چکیده
منابع مشابه
Adaptive logarithmic discretization for numerical renormalization group methods
The problem of the logarithmic discretization of an arbitrary positive function (such as the density of states) is studied in general terms. Logarithmic discretization has arbitrary high resolution around some chosen point (such as Fermi level) and it finds application, for example, in the numerical renormalization group (NRG) approach to quantum impurity problems (Kondo model), where the conti...
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ژورنال
عنوان ژورنال: Computer Physics Communications
سال: 2009
ISSN: 0010-4655
DOI: 10.1016/j.cpc.2009.02.007