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New probes of initial state of quantum fluctuations during inflation

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(3)<br />

S S<br />

ζL<br />

Ganc & Komatsu, JCAP, 12, 009 (2010)<br />

Long-short Split <strong>of</strong> HI<br />

• Inserting ζ=ζL+ζS into the cubic action <strong>of</strong> a scalar<br />

field, and retain terms that have one ζL and two ζS’s.<br />

31<br />

(3)

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