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Light-induced twisting of Weyl nodes switches on giant electron current

January 19, 2021 sarah JonasResearch Results

Scientists at the U.S. Department of Energy’s Ames Laboratory and collaborators at Brookhaven National Laboratory and the University of Alabama at Birmingham have discovered a new light-induced switch that twists the crystal lattice of the material, switching on a giant electron current that appears to be nearly dissipationless. The discovery was made in a category of topological materials that holds great promise for spintronics, topological effect transistors, and quantum computing.

Naturally Occurring Radiation Limits Superconducting Qubit Coherence Times

September 18, 2020 sarah JonasFeature

Two new experiments have demonstrated the correlation between natural radiation levels and the duration of qubit coherence. If radiation cannot be mitigated, it will limit the coherence time of qubits to a few milliseconds.

New discovery helps close the gap towards optically-controlled quantum computation

April 20, 2020 sarah JonasResearch Results

Scientists have discovered a light-induced switching mechanism in a Dirac semimetal. The mechanism establishes a new way to control the topological material, driven by back-and-forth motion of atoms and electrons, which will enable topological transistor and quantum computation using light waves.