Pasqal raises $100M to build a neutral atom-based quantum computer

February 1, 2023

Chris Farley

Quantum computer is getting up and running.

Computing

Quantum computers are in the news.

Pasqal, a Paris-based quantum computing startup, today announced that it has raised a $100 million Series B funding round let by Singapore’s Temasek. In addition to Temasek, existing investors Quantonation, the Defense Innovation Fund, Daphni and Eni Next, as well as new investors European Innovation Council (EIC) Fund, Wa’ed Ventures and Bpifrance (through its Large Venture Fund) also participated in this round.

What makes Pasqal, which was founded in early 2019, stand out in an increasingly crowded field of quantum computing startups is that the company is betting on neutral atoms quantum computing. This is a relatively new and potentially game-changing approach to building quantum processors. Instead of trapped ions (like IonQ) or superconducting quantum computers (like IBM), neutral atom quantum processors use lasers to hold atoms in place with what is essentially an optical tweezer.

As you can imagine, building the technology to hold a single atom — and only a single atom — in this trap created its own challenges, but that’s mostly a solved problem now. The advantage here is that once you can do this with hundreds of atoms at the same time, you can create both a very dense matrix of qubits and one that, using holographic methods, you can reshuffle in 3D space as needed for a given algorithm. And all of this happens at room temperature. That almost makes these machines more akin to Field-Programmable Gate Arrays (FPGAs) than more traditional quantum processors. You can find a Pasqal’s paper about this process with more details here and it’s also worth noting that Alain Aspect, who won a Nobel Prize for his work on quantum entanglement in 2022, is one of Pasqal’s co-founders.