Quantum Computing

Quantum Computing Inc. (QUBT), a Hoboken, New Jersey company building photonic machines that run at room temperature rather than in a cryostat: its Dirac optimisation devices and a reservoir computing box called Emucore. It fabricates thin-film lithium niobate chips in Tempe, Arizona. QUBT is a Robinhood Stock Token, issued against Quantum Computing Inc. shares by Robinhood Assets (Jersey) Limited, a Jersey company owned by Robinhood, and it lives on Robinhood Chain, the Arbitrum-based network Robinhood opened to the public in July 2026.