Exact formula for nondiagonal Green’s functions in condensed-matter physics
نویسندگان
چکیده
منابع مشابه
Physics , Condensed Matter Homework
The key insight of Bogoliubov is that although the mean-field Hamiltonian (1) is clearly not diagonal in the space of states created by the operators ck,↑/↓, it may be diagonal in a basis of states created by operators related to these via a simple SU2 transformation. Indeed, it may be the case that ‘electrons’ and ‘holes’ are the wrong degrees of freedom to consider; we should at least look to...
متن کاملTopological order in condensed matter physics Topological order in condensed matter physics
door Jesper Christian Romers geboren te Delft.
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1994
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.50.18640