  Dynamical perturbations from supermassive black hole (SMBH) binaries can
increase the rates of tidal disruption events (TDEs). However, most previous
work focuses on TDEs from the heavy black hole in the SMBH binary (SMBHB)
system. In this work, we focus on the lighter black holes in SMBHB systems and
show that they can experience a similarly dramatic increase in their TDE rate
due to perturbations from a more massive companion. While the increase in TDEs
around the more massive black hole is mostly due to chaotic orbital
perturbations, we find that, around the smaller black hole, the eccentric
Kozai-Lidov (EKL) mechanism is dominant and capable of producing a comparably
large number of TDEs. In this instance, the mass derived from the light curve
and spectra of TDEs triggered by the lighter SMBH companion are expected to be
significant smaller than the SMBH mass estimated from galaxy scaling relations,
which are dominated by the more massive companion. This apparent inconsistency
can help find SMBHB candidates that are not currently accreting as active
galactic nuclei (AGN) and that are at separations too small to be resolved as
two distinct sources. TDEs thus provide us with an exciting opportunity to
study SMBHB, in particular when they might be detected from galaxies hosting
SMBHs that are too massive to disrupt sun-like stars.
