Gao, CJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, Beijing 100012, Peoples R China.
; Gao, CJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型:
Article
英文摘要:
Motivated by the mathematic theory of split-complex numbers (or hyperbolic numbers, also perplex numbers) and the split-quaternion numbers (or coquaternion numbers), we define the notion of split-complex scalar field and the split-quaternion scalar field. Then we explore the cosmic evolution of these scalar fields in the background of spatially flat Friedmann-Robertson-Walker Universe. We find that both the quintessence field and the phantom field could naturally emerge in these scalar fields. Introducing the metric of field space, these theories fall into a subclass of the multi-field theories which have been extensively studied in inflationary cosmology.
Gao, CJ,Chen, XL,Shen, YG. Quintessence and phantom emerging from the split-complex field and the split-quaternion field[J]. GENERAL RELATIVITY AND GRAVITATION,2016,48(1):UNSP 11.
