Higher order corrections to asymptotic-de Sitter inflation

M. Mohsenzadeh; E. Yusofi

doi:10.1088/1674-1137/41/8/085101

Chinese Physics C> 2017, Vol. 41> Issue(8) : 085101 DOI: 10.1088/1674-1137/41/8/085101

Higher order corrections to asymptotic-de Sitter inflation

M. Mohsenzadeh ¹ ,
E. Yusofi ^2,3

1.
Department of Physics, Qom Branch, Islamic Azad University, Qom, Iran
2.
Department of Physics, Ayatollah Amoli Branch, Islamic Azad University, Amol, Mazandaran, Iran
3.
School of Astronomy, Institute for Research in Fundamental Sciences(IPM), P. O. Box 19395-5531, Tehran, Iran

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Abstract：
Since trans-Planckian considerations can be associated with the re-definition of the initial vacuum, we investigate further the influence of trans-Planckian physics on the spectra produced by the initial quasi-de Sitter (dS) state during inflation. We use the asymptotic-dS mode to study the trans-Planckian correction of the power spectrum to the quasi-dS inflation. The obtained spectra consist of higher order corrections associated with the type of geometry and harmonic terms sensitive to the fluctuations of space-time (or gravitational waves) during inflation. As an important result, the amplitude of the power spectrum is dependent on the choice of c, i.e. the type of space-time in the period of inflation. Also, the results are always valid for any asymptotic dS space-time and particularly coincide with the conventional results for dS and flat space-time.
- initial state ,
- trans-Planckian effects ,
- inflation

References

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M. Mohsenzadeh and E. Yusofi. Higher order corrections to asymptotic-de Sitter inflation[J]. Chinese Physics C, 2017, 41(8): 085101. doi: 10.1088/1674-1137/41/8/085101

M. Mohsenzadeh and E. Yusofi. Higher order corrections to asymptotic-de Sitter inflation[J]. Chinese Physics C, 2017, 41(8): 085101. doi: 10.1088/1674-1137/41/8/085101 shu

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Higher order corrections to asymptotic-de Sitter inflation

1. Department of Physics, Qom Branch, Islamic Azad University, Qom, Iran

2. Department of Physics, Ayatollah Amoli Branch, Islamic Azad University, Amol, Mazandaran, Iran

3. School of Astronomy, Institute for Research in Fundamental Sciences(IPM), P. O. Box 19395-5531, Tehran, Iran

Received Date: 2017-04-15

Available Online: 2017-08-05

Abstract: Since trans-Planckian considerations can be associated with the re-definition of the initial vacuum, we investigate further the influence of trans-Planckian physics on the spectra produced by the initial quasi-de Sitter (dS) state during inflation. We use the asymptotic-dS mode to study the trans-Planckian correction of the power spectrum to the quasi-dS inflation. The obtained spectra consist of higher order corrections associated with the type of geometry and harmonic terms sensitive to the fluctuations of space-time (or gravitational waves) during inflation. As an important result, the amplitude of the power spectrum is dependent on the choice of c, i.e. the type of space-time in the period of inflation. Also, the results are always valid for any asymptotic dS space-time and particularly coincide with the conventional results for dS and flat space-time.

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