New probes of initial state of quantum fluctuations during inflation
New probes of initial state of quantum fluctuations during inflation
New probes of initial state of quantum fluctuations during inflation
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An Easy One: Adiabaticity<br />
• Single-field <strong>inflation</strong> = One degree <strong>of</strong> freedom.<br />
• Matter and radiation <strong>fluctuations</strong> originate from a<br />
single source.<br />
Cold<br />
Dark Matter<br />
Photon<br />
= 0<br />
* A factor <strong>of</strong> 3/4 comes from the fact that, in thermal<br />
equilibrium, ρc~ργ 3/4<br />
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