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Zheng Jiao
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Volume 81 Issue 5 November 2013 pp 839-848 Research Articles
Boson bound states in the $\beta$-Fermi–Pasta–Ulam model
Xin-Guang Hu Ju Xiang Zheng Jiao Yang Liu Guo-Qiu Xie Ke Hu
The bound states of four bosons in the quantum $\beta$-Fermi–Pasta–Ulam model are investigated and some interesting results are presented using the number conserving approximation combined with the number state method. We find that the relative magnitude of anharmonic coefficient has a significant effect on forming localized energy in the model, and the wave number plays an important role in forming different bound states. The signature of the quantum breather is also set up by the square of the amplitudes of the corresponding eigenvectors in real space.
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Volume 82 Issue 3 March 2014 pp 607-607 Erratum
Erratum to: Boson bound states in the 𝛽-Fermi–Pasta–Ulam model
Xin-Guang Hu Ju Xiang Zheng Jiao Yang Liu Guo-Qiu Xie Ke Hu
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Pramana – Journal of Physics
Volume 97, 2023
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