CMB Lensing and Giant Rings
  We study the CMB lensing signature of a pre-inationary particle (PIP),
assuming it is responsible for the giant rings anomaly that was found recently
in the WMAP data. Simulating Planck-like data we find that generically the CMB
lensing signal to noise ratio associated with such a PIP is quite small and it
would be difficult to cross correlate the temperature giant rings with the CMB
lensing signal. However, if the pre-inationary particle is also responsible for
the bulk flow measured from the local large scale structure, which happens to
point roughly at the same direction as the giant rings, then the CMB lensing
signal to noise ratio is fairly significant.
