Studying Quantum Topology with Qubits

Roushan 2015 image
Image: Pedram Roushan, Google Inc., Santa Barbara, CA

The superior computational processing power of quantum bits (qubits) is poised to have revolutionary impacts on diverse fields ranging from chemistry to economics. In a recent work, scientists at University of California Santa Barbara, in collaboration with Boston University, used superconducting qubits to demonstrate a novel method to directly measure topological properties of quantum systems. In the rendering shown, a trefoil knot, an iconic topological object, is coming out of a tunnel comprised of a wafer of superconducting qubit chips with a few qubits on each chip.

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