PHOTONIC QUBIT NETWORK. Finally, Charles Santori (Hewlett Packard,
charles.santori@hp.com) reported the creation of qubits in diamond
at room temperature without the need for any external magnetic field
(for polarizing electrons) or microwaves (for flipping the
polarization). All these tasks, he said, could be accomplished with
a visible-light laser modulated at two frequencies. The
all-optical approach to manipulating spins, using optical waveguides
and cavities, was a necessary step toward streamlining and scaling
up the process of creating and linking many qubits in a workable
quantum computer.