Understanding the Tantalizing Benefits of Tantalum for Improved Quantum Processors

Researchers working to improve the performance of superconducting qubits, the foundation of quantum computers, have been experimenting using different base materials in an effort to increase the coherent lifetimes of qubits. The coherence time is a measure of how long a qubit retains quantum information, and thus a primary measure of performance. Recently, scientists discovered that using tantalum in superconducting qubits makes them perform better, but no one has been able to determine why—until now.

Decoding the Lifecycle of Photogenerated Charges

New materials will enable novel technologies to turn sunlight into electricity and fuels. Combinations of molecules and tiny nanoparticles make these materials a reality. Scientists have found a way to track electrons along their round trip from the molecules to the nanoparticles and back, helping to find where electrons can travel and where they get stuck, information that is crucial to finding better combinations for innovative materials.

Brookhaven’s Ivan Bozovic Wins 2021 James C. McGroddy Prize for New Materials

The American Physical Society has selected physicist Ivan Bozovic of the U.S. Department of Energy’s Brookhaven National Laboratory as a co-recipient of the 2021 James C. McGroddy Prize for New Materials. Bozovic and his collaborators were recognized “For pioneering the atomic-layer-by-layer synthesis of new metastable complex-oxide materials, and the discovery of resulting novel phenomena.”