Ntt Research Builds Virtual Quantum Computer From Untrusted Servers

A purely classical computer can now utilise any single quantum server, even one considered untrusted and potentially malicious, as if it were its own fully functional quantum machine. It allows a client without quantum hardware to run computations, prepare and process states, and maintain persistent quantum memory on the remote server; effectively acting as a quantum device through standard communication. A method has been created allowing standard computers to utilise even potentially compromised quantum processors as if they were fully functional and trustworthy machines.

This creates a “virtual” quantum computer accessible via existing communication networks, removing reliance on widespread availability of stable dedicated hardware. By resolving longstanding challenges in verifying complex calculations from quantum processors, this broadens access to, and confidence in, the potential benefits of quantum computing. Standard computers can utilise even potentially compromised quantum processors as if they were fully functional and trustworthy machines; effectively creating a “virtual” quantum computer accessible via existing networks.

This removes reliance on widespread availability of stable dedicated hardware by resolving longstanding challenges in verifying complex calculations from quantum processors. Key to this is allowing a client without any quantum capabilities to run computations, prepare states, and maintain persistent quantum memory on a remote server, imagine giving instructions over the phone for someone else to arrange objects into a specific pattern, ensuring accurate creation despite your absence.