Quantum computing's 'dark horse' goes universal as DOE sets 2028 deadline

Researchers from the University of Chicago Pritzker School of Molecular Engineering, Harvard, Stony Brook University and Quantinuum published the result in Nature. ScienceDaily reported on it on 25 September. The team created and manipulated non-Abelian anyons inside a 54-qubit trapped-ion circuit. They combined two operations, braiding and fusion, to show the approach can support any quantum algorithm.

Quantum computers are fragile. Engineers normally protect information by spreading it across many physical qubits. However, those error-corrected codes do not supply every operation needed for general computation. The standard fix is to prepare special "magic states" through a purification process called distillation. This can eat a large share of a machine's qubits.

"We demonstrated a so-called universal gate set. That means if you store information in these emergent versions of quarks and move them around, you can do any quantum computation you might want to do," said Ruben Verresen, assistant professor of molecular engineering at UChicago PME and a co-author, according to ScienceDaily.

Non-Abelian anyons are not found as standalone particles. Scientists build them by entangling many ordinary qubits into a collective state that behaves like a new particle with its own rules. Each anyon carries an internal state that changes when one is moved around another. The order of those moves carries the information. In 2024, a team including Verresen created anyons tied to a symmetry group called D4 on a Quantinuum machine. Braiding alone could not cover every operation.

"Non-Abelian codes are a dark horse in the race to quantum error correction," said Henrik Dreyer, managing director and scientific lead at Quantinuum's Munich office and a co-author. "In this work we show the first universal gate set in a non-Abelian code. This demonstrates that fault-tolerant computations can in principle be done without resorting to magic state distillation or cultivation."

The new experiment switched to a symmetry group called S3. This group describes the rotations and reflections that leave an equilateral triangle unchanged. The team ran it on 54 entangled qubits. ScienceDaily's 27 September package lists the paper among the week's quantum computing news.

Washington puts a date on useful machines

Fermilab published the Department of Energy's SCAC Quantum Committee Report, "Path to an Integrated Quantum Future," on 27 September. A subcommittee led the report. Fermilab chief technology officer Anna Grassellino chaired it, with University of Chicago professor Supratik Guha as vice chair. The document sets a milestone-driven path to demonstrate a scientifically relevant, error-corrected quantum computer by 2028. It also sketches a long-term vision for a dedicated Quantum Computing User Facility.

The plan runs through three phases. Competitive "Quantum Grand Challenges" will occur between 2026 and 2028. This is followed by planning for the user facility. An integrated quantum future is targeted from 2030 onward. The document argues that success should be measured by scientific utility, not by qubit counts. It also states that the DOE should stay technology-neutral.

Industry roadmaps are already converging on similar deadlines. IBM said on 19 August that it had joined and cooled two cryogenic modules into a single environment. This is a step toward linking hundreds of quantum chips. The modules stand more than 8 feet tall and wide. They cool to 4 Kelvin in under five days and reach below 15 millikelvin shortly after, according to the company's announcement. IBM plans to link multiple processors into a machine with at least 1,000 programmable qubits by 2027. This is on the way to the fault-tolerant IBM Quantum Starling in 2029.

Logical qubit counts are moving too. Interesting Engineering reported that Infleqtion's Sqale machine demonstrated 30 entangled logical qubits using 80 physical qubits. The company says this makes it the first neutral-atom system to reach that mark on a commercial platform. CEO Matt Kinsella said the company is targeting 100 logical qubits by 2028.

Simulation and orbit

Quantum hardware is also being applied to physics problems. ScienceDaily reported on 26 September that a Duke-led team used a 13-ion quantum simulator to reproduce string breaking. This process is linked to particle formation in the early universe. The work was published on 23 September in Nature Physics. Christopher Monroe, who led the research, said quantum simulations offer the best available platform to investigate matter formation short of witnessing the Big Bang.

Away from the laboratory, The Next Web reported on 28 September that Indian startup TakeMe2Space will launch its MOI-1A satellite on a SpaceX rideshare flight on 1 October. The company calls it India's first orbital computing satellite. It carries Nvidia Orin NX edge chips and about 150 watts of power. The satellite has 23 customers booked. It replaces MOI-1, which was lost on 12 January when the third stage of ISRO's PSLV-C62 failed.

Better error correction and government-backed deadlines now share a calendar. Whether the physics delivers on that schedule remains the open question.