In superconducting circuits, superinductors are employed to suppress charge fluctuations and increase zero-point voltage, enabling features for hardware-protected qubits, metrological standards, and strongly coupled hybrid devices. Conventionally these devices are based on kinetic inductance, and can suffer from nonlinearity, additional complexity due to multiterminal structure, and the limited control and reliability of bottom-up fabrication. Making use of miniaturization and substrate engineering, the authors realize a geometrically defined, single-wavefunction superinductor—a high-performance, innovative circuit element that promises to expand the scope of quantum circuitry.
Particles traveling in a superposition of paths can bypass noise in communication Artistic illustration of a communication channel between two partners crossing regions of noise. The noise resistance of the
With the help of the computer algorithm Melvin, quantum researchers from the Austrian Academy of Sciences and the University of Vienna have developed a new approach to manipulate complex constellations
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