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A New Approach to Excited States in 4He: Rotons and Vortices

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Condensed Matter Theories

Abstract

The shadow wave function has been extensively used to describe quantum solids and liquids.1,2 The good results so far obtained for the ground state properties of a system of 4He atoms have encouraged us to apply this same formalism in more complex situations. In this paper we investigate the elementary excitation spectrum of liquid 4He and nonuniform states of this system with a vortex line.

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References

  1. Silvio Vitiello, Karl Runge and Malvin H. Kalos, Phys. Rev. Lett. 60, 1970 (1988).

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  2. S. A. Vitiello, K. J. Runge, G. V. Chester and M. H. Kalos „;Shadow” Wave Function Variational Calculations of Crystalline and Liquid Phases of 4 He, preprint.

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Author information

Authors and Affiliations

  1. Courant Institute of Mathematical Sciences, New York University, New York, NY, 10012, USA

    S. A. Vitiello

  2. Laboratory of Atomic and Solid State Physics and Theory Center, Cornell University, New York, NY, 14853, USA

    M. H. Kalos

  3. Dipartimento di Fisica, Università Degli Studi di Milano, 20133, Milano, Italy

    L. Reatto

Authors
  1. S. A. Vitiello
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  2. M. H. Kalos
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  3. L. Reatto
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Editor information

Editors and Affiliations

  1. Instituto de Física Teórica, UNESP, Rua Pamplona 145, 01405, São Paulo, SP, Brazil

    V. C. Aguilera-Navarro

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© 1990 Plenum Press, New York

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Vitiello, S.A., Kalos, M.H., Reatto, L. (1990). A New Approach to Excited States in 4He: Rotons and Vortices. In: Aguilera-Navarro, V.C. (eds) Condensed Matter Theories. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0605-4_16

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  • DOI: https://doi.org/10.1007/978-1-4613-0605-4_16

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-7888-7

  • Online ISBN: 978-1-4613-0605-4

  • eBook Packages: Springer Book Archive

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