  A generic consequence of supersymmetry is formation of a scalar condensate
along the flat directions of the potential at the end of cosmological
inflation. This condensate is usually unstable, and it can fragment into
non-topological solitons, Q-balls. The gravitational waves produced by the
fragmentation can be detected by Laser Interferometer Space Antenna (LISA),
Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO), and Big
Bang Observer (BBO), which can offer an important window on the early universe
and the physics at some very high energy scales.
