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Excitation Spectrum for Weakly Interacting Bose Gas and the Liquid Structure Function of Helium

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Low Temperature Physics-LT 13

Abstract

In this paper the excitation spectrum of a Bose gas characterized by a pairwise Fourier-transformable potential λV(r) is calculated to three leading orders in the strength parameter λ, first by the Hugenholtz-Pines prescription,1 then by the method of correlated basis functions (CBF).

Work supported in part by the National Science Foundation through Grant No. GP-29130.

Alfred P. Sloan Research Fellow.

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References

  1. N.M. Hugenholtz and D. Pines, Phys. Rev. 116, 489 (1959).

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  2. E. Feenberg, Theory of Quantum Fluids, Academic, New York (1969), Chapter 5.

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  3. A. Bhattacharyya and C.-W. Woo, Phys. Rev. Lett. 28, 1320 (1972).

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  4. A. Bhattacharyya and C.-W. Woo, Phys. Rev. (to be published).

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© 1974 Springer Science+Business Media New York

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Bhattacharyya, A., Woo, CW. (1974). Excitation Spectrum for Weakly Interacting Bose Gas and the Liquid Structure Function of Helium. In: Timmerhaus, K.D., O’Sullivan, W.J., Hammel, E.F. (eds) Low Temperature Physics-LT 13. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-7864-8_11

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  • DOI: https://doi.org/10.1007/978-1-4684-7864-8_11

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-7866-2

  • Online ISBN: 978-1-4684-7864-8

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