quantum computing

One of the most difficult problems to overcome in developing a quantum computer is finding a way to maintain the lifespan of information held in quantum bits, called qubits. Researchers at Fermilab and Argonne National Laboratory are working to determine whether devices used in particle accelerators can help solve the problem. The team will run simulations on high-performance computers that will enable them to predict the lifespan of information held within these qubits using smaller versions of these devices, taking us one step closer to the age of quantum computing.

From the College of DuPage’s The Courier, Nov. 14, 2019: Fermilab scientists Jim Kowalski and Stephen Mrenna talk about Fermilab is using quantum computing to solve the problems of the universe.

Today’s quantum computing processors must operate at temperature close to absolute zero, and that goes for their electronics, too. Fermilab’s cryoelectronics experts recently hosted a first-of-its-kind workshop where leaders in quantum technologies took on the challenges of designing computer processors and sensors that work at ultracold temperatures.

A Fermilab group has found a way to simulate, using a quantum computer, a class of particles that had resisted typical computing methods. Their novel approach opens doors to an area previously closed off to quantum simulation in areas beyond particle physics, thanks to cross-disciplinary inspiration.

Fermilab’s quantum program includes a number of leading-edge research initiatives that build on the lab’s unique capabilities as the U.S. center for high-energy physics and a leader in quantum physics research. On the tour, researchers discussed quantum technologies for communication, high-energy physics experiments, algorithms and theory, and superconducting qubits hosted in superconducting radio-frequency cavities.

Quantum leap

Alex Romanenko prepares to supercool superconducting accelerator cavities, the silver-colored objects, to convert it into a quantum device. Photo: Reidar Hahn

Fermilab scientists are adapting the lab’s cutting-edge accelerator technology for qubits and quantum sensors.