Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10723500 | Physics Letters B | 2010 | 8 Pages |
Abstract
In this Letter, we find suitable potentials in the multiple scalar fields scenario by using the Noether symmetry approach. We discussed three models with multiple scalar fields: N-quintessence with positive kinetic terms, N-phantom with negative kinetic terms and N-quintom with both positive and negative kinetic terms. In the N-quintessence case, the exponential potential which could be derived from several theoretic models is obtained from the Noether conditions. In the N-phantom case, the potential V02(1âcos(3N2Ïmpl)), which could be derived from the Pseudo Nambu-Goldstone boson model, is chosen as the Noether conditions required. In the N-quintom case, we derive a relation DVÏqâ²=âDËVÏpâ² between the potential forms for the quintessence-like fields and the phantom-like fields by using the Noether symmetry.
Related Topics
Physical Sciences and Engineering
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Authors
Yi Zhang, Yun-Gui Gong, Zong-Hong Zhu,