Spontaneous Baryogenesis from Asymmetric Inflaton
  We propose a variant scenario of spontaneous baryogenesis from asymmetric
inflaton based on current-current interactions between the inflaton and matter
fields with a non-zero B-L charge. When the inflaton starts to oscillate around
the minimum after inflation, it may lead to excitation of a CP-odd component,
which induces an effective chemical potential for the B-L number through the
current-current interactions. We study concrete inflation models and show that
the spontaneous baryogenesis scenario can be naturally implemented in the
chaotic inflation in supergravity.
