Precisely generating photons can be seen as a form of communication, and thus says this can then be beyond just computing.
Generating Photons for Communication in Quantum Computing System
MIT News, Michaela Jarvis
Massachusetts Institute of Technology (MIT) researchers have developed a technique for inducing quantum bits (qubits) to generate photons to enable quantum processor communication, a key step in achieving interconnections for a modular quantum computing platform. The architecture features superconducting qubits connected to a microwave transmission line or waveguide, with quantum interconnects needed to link qubits at distant locations. Communication occurs in the waveguide as excitations stored within the qubits produce photon pairs, which are emitted into the waveguide and travel to two distant processing nodes, distributing their entanglement throughout a quantum network. Said MIT’s Bharath Kannan, the entanglement “can then be transferred into the processors for use in quantum communication or interconnection protocols." ... '
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