A consistent approximation scheme beyond RPA for bosons
نویسندگان
چکیده
منابع مشابه
A consistent approximation scheme beyond RPA for bosons
In this paper, we develop a consistent extension of RPA for bosonic systems. In order to illustrate the method, we consider the case of the anharmonic oscillator. We compare our results with those obtained in mean-field and standard RPA approaches, with the exact ones and show that they are very close to the exact ones.
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2003
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2002-10075-y