Persistence of Exponential Decay and Spectral Gaps for Interacting Fermions
نویسندگان
چکیده
منابع مشابه
Interacting fermions :
Most materials are either metals or insulators. When they are metals, their electronic properties are usually described by Landau's Fermi liquid theory. That is, they behave more or less like a free Fermi gas, with a few modifications due to electron-electron interactions. However, there exist a few metallic materials whose phenomenology does not fit within Fermi liquid theory. These are quasi-...
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15 صفحه اولHamiltonian renormalization of interacting fermions
The Bloch-Feshbach formalism known from the theory of nuclear dynamics allows one to understand renormalization in terms of purely algebraic operations (projections) in Hilbert space. This algebraic approach is put to the test in the study of the low-energy dynamics of interacting fermions and proves to be eecient in deriving such diverse results as Landau's theory for the eeective mass, the sc...
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ژورنال
عنوان ژورنال: Communications in Mathematical Physics
سال: 2018
ISSN: 0010-3616,1432-0916
DOI: 10.1007/s00220-018-3211-z