  A chiral-symmetric technicolor model successfully reconciles the tension
between electroweak precision tests and traditional technicolor models.
Focusing on its simplest realization preserving the conventional Higgs
mechanism, we study its primordial gravitational wave signatures originating
from first order phase transitions in the early Universe. We found that
abundant phase transition patterns arise from a physically viable parameter
space. Besides, we have also found gravitational wave signals possibly visible
by future experiments, such as LISA, BBO and u-DECIGO. Our results stress the
importance of gravitational wave detectors in exploring new physics
complementary to ground colliders in the multi-messenger astronomy era.
