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Variational approach for a class of cooperative systems

✍ Scribed by P. Álvarez-Caudevilla


Book ID
116761233
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
324 KB
Volume
75
Category
Article
ISSN
0362-546X

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Time-Dependent Variational Approach for
✍ Mohamed Benarous; Hubert Flocard 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 359 KB

Applying to boson systems the time-dependent variational principle of Balian and Ve ne roni, we derive approximate methods for calculating expectation values when both the measured observable and the density matrix are exponentials of quadratic forms of boson operators. In the zero-temperature limit