Simple condensation of interacting boson
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A Casher; M Revzen
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Article
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1968
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Elsevier Science
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English
⚖ 728 KB
Bose condensation is characterized by a condition on the zero-frequency fourier component of the self-energy at the critical value of the chemical potential. This condition is used to show that under the action of an external linear perturbation the k = 0 mode goes over into a coherent state in the