naa a22 4500 510767966 CHVBK 20180411083203.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s12043-013-0610-8 doi (NATIONALLICENCE)springer-10.1007/s12043-013-0610-8 Boson bound states in the β -Fermi-Pasta-Ulam model [Elektronische Daten] [XIN-GUANG HU, JU XIANG, ZHENG JIAO, YANG LIU, GUO-QIU XIE, KE HU] The bound states of four bosons in the quantum β-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. Indian Academy of Sciences, 2013 Discrete breather nationallicence Fermi-Pasta-Ulam model nationallicence number state method nationallicence boson bound state nationallicence HU XIN-GUANG Department of Physics, Huangshan University, Huangshan, 245041, Anhui, China aut XIANG JU Department of Basic Sciences, The First Aeronautical Institute of the Air Force, Xinyang, 464000, Henan, China aut JIAO ZHENG Department of Physics, Huangshan University, Huangshan, 245041, Anhui, China aut LIU YANG Department of Physics, Xiangtan University, Xiangtan, 411105, Hunan, China aut XIE GUO-QIU Department of Physics, Huangshan University, Huangshan, 245041, Anhui, China aut HU KE Department of Physics, Xiangtan University, Xiangtan, 411105, Hunan, China aut Pramana Springer India 81/5(2013-11-01), 839-848 0304-4289 81:5<839 2013 81 12043 https://doi.org/10.1007/s12043-013-0610-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12043-013-0610-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- HU XIN-GUANG Department of Physics, Huangshan University, Huangshan, 245041, Anhui, China aut NATIONALLICENCE 700 1- XIANG JU Department of Basic Sciences, The First Aeronautical Institute of the Air Force, Xinyang, 464000, Henan, China aut NATIONALLICENCE 700 1- JIAO ZHENG Department of Physics, Huangshan University, Huangshan, 245041, Anhui, China aut NATIONALLICENCE 700 1- LIU YANG Department of Physics, Xiangtan University, Xiangtan, 411105, Hunan, China aut NATIONALLICENCE 700 1- XIE GUO-QIU Department of Physics, Huangshan University, Huangshan, 245041, Anhui, China aut NATIONALLICENCE 700 1- HU KE Department of Physics, Xiangtan University, Xiangtan, 411105, Hunan, China aut NATIONALLICENCE 773 0- Pramana Springer India 81/5(2013-11-01), 839-848 0304-4289 81:5<839 2013 81 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer