Rotonium

Rotonium is an Italian deep-tech startup developing room-temperature photonic quantum computers using single-photon qudit technology. Based in Padua and backed by CDP Venture Capital, the company builds silicon photonics components that enable compact quantum systems operable on Earth, in the air, and in space without cryogenic cooling.[1]

  • Founded:
  • Country: Italy
  • Type: hardware
  • Headquarters: Padua, Italy
  • Funding: EUR 1M+
  • photonics
  • room-temperature
  • qudit
  • silicon-photonics
  • space

What does Rotonium do?

Rotonium is an Italian deep-tech startup developing room-temperature photonic quantum computers using single-photon qudit technology. Based in Padua and backed by CDP Venture Capital, the company builds silicon photonics components that enable compact quantum systems operable on Earth, in the air, and in space without cryogenic cooling.

Where is Rotonium based?

Rotonium is headquartered in Padua, Italy, in the European quantum computing ecosystem.

Visit Rotonium

https://www.rotonium.com

Frequently Asked Questions

What does Rotonium do?

Rotonium is an Italian deep-tech startup developing room-temperature photonic quantum computers using single-photon qudit technology. Based in Padua and backed by CDP Venture Capital, the company builds silicon photonics components that enable compact quantum systems operable on Earth, in the air, and in space without cryogenic cooling.

Where is Rotonium based?

Rotonium is based in Padua, Italy.

When was Rotonium founded?

Rotonium was founded in 2022.

Sources

  1. "Rotonium Official Website", accessed 2026-03-19 — rotonium.com
  2. "Deep-tech Startup Rotonium Raises EUR 1 Million in Seed Funding to Take Quantum Computers Into Space - The Quantum Insider", accessed 2026-03-19 — thequantuminsider.com