Abstract
We have evaluated numerically various operator expectation values in the Gutzwiller Wavefunction1 for the less-than-half-filled-band case. These results are essentially exact; previously, only analytic approximation of uncertain validity have been available in this regime, which is the interesting one for applications to heavy-fermion systems.2 In addition, this wavefunction is a rare example of a strongly correlated Fermi liquid in which many interesting properties can be reliably calculated.
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References
M.C. Gutzwiller, Phys. Rev. 134, A923 (1964) and Phys. Rev. 137, A1726 (1965).
Results for the half-filled band have been obtained by P. Horsch and T.A. Kaplan, J. Phys C16, L1203 (1983).
For complete results, see C. Gros, R. Joynt, and T.M. Rice, to be published in Phys. Rev. B.
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© 1987 Plenum Press, New York
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Joynt, R., Gros, C., Rice, T.M. (1987). Properties of the Gutzwiller Wavefunction. In: Gupta, L.C., Malik, S.K. (eds) Theoretical and Experimental Aspects of Valence Fluctuations and Heavy Fermions. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0947-5_79
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DOI: https://doi.org/10.1007/978-1-4613-0947-5_79
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-8259-4
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