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Destruction of Peierls dimerization in the molecular crystal model: Effects of quantum phonon fluctuations

C. Q. Wu·Q. F. Huang·X. Sun
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Abstract

Effects of quantum phonon fluctuations on the Peierls dimerization in the one-dimensional molecular crystal model are reexamined by a functional integral approach. An equation for the dimerization order parameter is obtained within a one-loop approximation. The destruction of Peierls dimerization is found by taking the quantum phonon fluctuations into account for the spin-1/2 electron system. The consistency and discrepancy of the result with previous ones are discussed.

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C. Q. Wu, Q. F. Huang, X. Sun. 1995-10-09. Destruction of Peierls dimerization in the molecular crystal model: Effects of quantum phonon fluctuations. https://doi.org/10.1103/physrevb.52.r15683

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