
Session F2 - Focus Session: Phenomenology of Quantum Gravity.
FOCUS session, Saturday evening, April 05
Commonwealth A, Loews Philadelphia Hotel
We examine the sensitivity of the CMB calculation in inflationary models to physics above the inflation energy scale. Using models involving coupled fields in non-adiabatically evolving configurations, we show that, under some circumstances, high energy physics can imprint itself on the CMB anisotropy spectrum. We also discuss some issues associated with the so-called alpha-vacua.