PsiQuantum, Brookhaven Partner on Fault-Tolerant Quantum Algorithms
On September 2, PsiQuantum and the U.S. Department of Energy‘s Brookhaven National Laboratory announced that Brookhaven researchers will utilize PsiQuantum’s Construct software to explore algorithms for fault-tolerant quantum computers. This agreement facilitates software access rather than demonstrating operational computing.
Details of the Agreement
Construct is PsiQuantum’s platform for designing quantum circuits, writing algorithms, and estimating the resources these algorithms would require on a large-scale machine. PsiQuantum made Construct free and open-access in May 2026, according to the company’s press release on September 2. Under this collaboration, Brookhaven scientists gain access to these tools for research into algorithms intended for what PsiQuantum refers to as the first generation of fault-tolerant quantum computers.
No operations were performed on actual quantum hardware. The algorithms are written and simulated, and simulations don’t constitute measured results on a physical device. PsiQuantum develops photonic quantum computers but hasn’t yet delivered a fault-tolerant system. Brookhaven leads the DOE’s Co-design Center for Quantum Advantage and operates a 98-mile quantum network with Stony Brook University, but this infrastructure is separate from the current software agreement.
Gabriella Carini, Brookhaven’s Associate Laboratory Director for Discovery Technologies, connected this work to a federal initiative:
“DOE’s new Quantum Genesis initiative requires innovative partnerships across our national labs, industry, academia, and government. This is a great example of one such collaboration.”
The 2028 Target
The DOE’s Quantum Genesis initiative aims to deploy what it describes as the world’s first fault-tolerant, scientifically relevant quantum computing capability by 2028. No group has yet demonstrated fault tolerance at a useful scale, and current machines operate with too few reliable qubits for the applications PsiQuantum envisions. The company suggests that fault-tolerant algorithms could benefit areas such as materials science, drug research, and cryptography. These applications will remain in the research phase until suitable hardware becomes available.
Heath Bumgardner, PsiQuantum’s Vice President of Government Relations, characterized the deal as a public-private cooperation that could accelerate discovery.
Undisclosed information includes the potential involvement of financial transactions, the duration of the collaboration, or the specific algorithms Brookhaven intends to pursue. The announcement covers intent and access to tools; it doesn’t report on a working system, a benchmark, or a delivered result.