  The quantum chiral anomaly enables a nearly dissipationless current in the
presence of chirality imbalance and magnetic field -- this is the Chiral
Magnetic Effect (CME), observed recently in Dirac and Weyl semimetals. Here we
propose to utilize the CME for the design of qubits potentially capable of
operating at THz frequency, room temperature, and the coherence time to gate
time ratio of about $10^4$. The proposed "Chiral Qubit" is a micron-scale ring
made of a Weyl or Dirac semimetal, with the $|0\rangle$ and $|1\rangle$ quantum
states corresponding to the symmetric and antisymmetric superpositions of
quantum states describing chiral fermions circulating along the ring clockwise
and counter-clockwise. A fractional magnetic flux through the ring induces a
quantum superposition of the $|0\rangle$ and $|1\rangle$ quantum states. The
entanglement of qubits can be implemented through the near-field THz frequency
electromagnetic fields.
