The long-coherent-time and potentially scalable qubits composed of
electric dipolar molecules based on graphene
We propose a new kind of qubits composed of electric dipolar molecules.
The electric dipolar molecules in an external uniform electric field
will take simple harmonic oscillations, whose quantum states belonging
to the two lowest energy levels act as the states
|0>,|1> of a qubit. The
qubits’ excited states have a very long mean life time more than 70ms.We
can perform quantum computations by manipulating the qubits of electric
dipolar molecules just like those of neutral atoms. When the qubits are
used for quantum computations, the dipolar moments’ orientations will
harmonically oscillate along an external electric field and they will
not change the directions: along or against the electric field, so the
qubits can be large-scalely manufactured in graphene system.