TY - JOUR
T1 - Generalized space-time noncommutative inflation
AU - Xue, Wei
AU - Chen, Bin
AU - Wang, Yi
PY - 2007/9/1
Y1 - 2007/9/1
N2 - We study the noncommutative inflation with a time-dependent noncommutativity between space and time. From the numerical analysis of power law inflation, there are clues that the CMB spectrum indicates a nonconstant noncommutative inflation. Then we extend our treatment to the inflation models with more general noncommutativity and find that the scalar perturbation power spectrum depends sensitively on the time varying of the spacetime noncommutativity. This stringy effect may be probed in the future cosmological observations.
AB - We study the noncommutative inflation with a time-dependent noncommutativity between space and time. From the numerical analysis of power law inflation, there are clues that the CMB spectrum indicates a nonconstant noncommutative inflation. Then we extend our treatment to the inflation models with more general noncommutativity and find that the scalar perturbation power spectrum depends sensitively on the time varying of the spacetime noncommutativity. This stringy effect may be probed in the future cosmological observations.
KW - Inflation
KW - Physics of the early universe
KW - String theory and cosmology
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000249811000011
UR - https://openalex.org/W1994923458
UR - https://www.scopus.com/pages/publications/36048957266
U2 - 10.1088/1475-7516/2007/09/011
DO - 10.1088/1475-7516/2007/09/011
M3 - Journal Article
SN - 1475-7516
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
IS - 9
M1 - 011
ER -