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Quantum ComputingPhotonic Computing · QUBT

Quantum Computing Inc

Leesburg, VA, United States

About Quantum Computing Inc

Quantum Computing Inc. develops room-temperature photonic systems that use light to capture data, process complex problems and communicate securely, and it markets its Dirac line of optimization machines. It operates a foundry in Tempe, Arizona that fabricates thin-film lithium niobate chips, including electro-optic modulators and photonic integrated circuits on 150 mm wafers. The foundry held its grand opening on May 12, 2025. QCi positions the site as a first phase toward supplying data communications and telecom customers.

Quantum Computing Inc was founded in 2018 and is based in Leesburg, VA, United States. It is listed under Quantum Computing, Photonic Computing. Its shares trade as QUBT on NASDAQ.

Compute Technologies

  • Quantum Computing
  • Photonic Computing

What Quantum Computing Inc works on

Quantum Computing

A quantum computer is a machine that uses the rules of quantum physics to process information. Its basic unit is the qubit. A classical bit is either 0 or 1. A qubit can be in a superposition, a state that combines both, and its measured result is probabilistic.

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Photonic Computing

Photonic computing uses light instead of electricity to carry or process information. Photons have no charge, so light in a waveguide does not cause the resistive heating that current in a wire does, though lasers and modulators still use power, and many wavelengths can share one waveguide. The industry has two quite different parts: moving data with light, and computing with light.

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