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Quantum Control

All articles tagged with #quantum control

science18 days ago•7 min saved

Quantum Control Reverses the Arrow of Time in the Lab

Researchers developed measurement-based quantum control that, by combining measurements, feedback, and tailored control fields, can stretch or reverse the apparent arrow of time in quantum systems, creating time-reversed trajectories and a measurement-powered engine that can extract energy from monitoring; the work, published in Physical Review X, points to new methods for quantum state preparation and energy management with platforms like superconducting qubits.

via SciTechDaily|

#measurement #quantum #quantum-control

science1 year ago•2 min saved

Quantum Materials Enable 1,000-Fold Speed Boost in Future Electronics

Scientists have developed a new technique called 'thermal quenching' to control electronic states in quantum materials, potentially making electronic devices up to 1,000 times faster by enabling rapid switching between insulating and conducting phases at practical temperatures, which could revolutionize future electronics.

via ScienceAlert|

#1t-tas2 #device-speed #quantum-control

science-and-technology2 years ago•3 min saved

Revolutionizing Mechanical Oscillator Technology with Quantum Leap

Scientists at EPFL have developed a superconducting circuit optomechanical platform that achieves ultra-low quantum decoherence in mechanical oscillators while maintaining a high-fidelity quantum control. By reducing mechanical losses in the vibrating element of the oscillator, they achieved a thermal decoherence rate of only 20 Hz, resulting in a quantum state lifetime of 7.7 milliseconds—the longest ever achieved in a mechanical oscillator. This breakthrough opens up possibilities for quantum sensing, compact storage in quantum computing, fundamental tests of quantum gravity, and the search for dark matter.

via Phys.org|

#mechanical-oscillators #optomechanical-systems #quantum-computing