淡江大學機構典藏:Item 987654321/120661
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/120661


    Title: Electromagnetic coupling effects in natural inflation
    Authors: Hing-Tong Cho;Kin-Wang Ng
    Date: 2020-07-28
    Issue Date: 2021-04-26 12:10:21 (UTC+8)
    Publisher: Institute of Physics Publishing Ltd.
    Abstract: In this work we study the effects of the electromagnetic coupling in natural inflation in a systematic manner using the Schwinger–Keldysh formalism. The corresponding influence functional is evaluated in the one-loop level. It can be interpreted as due to a single stochastic force. The equation of motion of the inflaton field is therefore given in the form of a Langevin equation. Lastly, the two-point and the three-point correlation functions of the inflaton field are worked out. They are related to the power spectrum and the nongaussianity of the inflaton field, respectively.
    Relation: Classical and Quantum Gravity 37(16), 165011
    DOI: 10.1088/1361-6382/ab8600
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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