  In chemistry and biochemistry, chirality represents the structural asymmetry
characterized by non-superimposable mirror images for a material like DNA. In
physics, however, chirality commonly refers to the spin-momentum locking of a
particle or quasiparticle in the momentum space. While seemingly disconnected,
structural chirality in molecules and crystals can drive electronic chirality
through orbital-momentum locking, i.e. chirality can be transferred from the
atomic geometry to electronic orbitals. Electronic chirality provides an
insightful understanding of the chirality-induced spin selectivity (CISS), in
which electrons exhibit salient spin polarization after going through a chiral
material, and electric magnetochiral anisotropy (EMCA), which is characterized
by the diode-like transport. It further gives rise to new phenomena, such as
anomalous circularly polarized light emission (ACPLE), in which the light
handedness relies on the emission direction. These chirality-driven effects
will generate broad impacts in fundamental science and technology applications
in spintronics, optoelectronics, and biochemistry.
