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Quantum Campus shares the latest in quantum science and technology. Read by more than 1,900 researchers, we are always looking for news from across the country. See something interesting? Be sure to share it.
Mechanical resonator
Engineers at Harvard demonstrated a nanometer-scale mechanical resonator capable of tuning a spin qubit. This work marks the first time a single quantum of vibrational energy, or phonon, has been shown interacting with a single atomic spin.
“Many quantum systems, including superconducting qubits, quantum dots, or solid-state defects are known to interact strongly with phonons,” said Graham Joe, a former Harvard graduate student now at Ciena. “So quantum acoustics holds a lot of promise as a sort of ‘universal quantum bus’ which could connect up disparate sorts of quantum systems into hybrid systems.”
This work was published in Nature.
Diamond capable of containing a spin qubit with an array of mechanical resonators. Image from Harvard.
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Bell State measurement
MIT researchers developed a method to simultaneously measure multiple physical quantities with a single NV-center quantum sensor. They demonstrated their approach with an existing sensor technology at room temperature and were able to capture amplitude, frequency, and phase of a microwave field in a single measurement. They also showed the approach works better than sequentially measuring each property or using traditional sensors, “confirming the theoretical advantages of multiparameter quantum sensing even under realistic noise conditions.”
This work was published in PRX Quantum.
REPLIQA
Google made $10 million in grants to five universities, launching its Research Program at the Intersection of Life Sciences & Quantum AI (REPLIQA). The name pretty much says it all. Awards went to Harvard, MIT, University of California San Diego, University of California Santa Barbara, and University of Arizona.
Read Google’s announcement. Arizona said their project would be led by astrobiologist Dante Lauretta.
Quickbits
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Quantum Campus is edited by Bill Bell, a science writer and marketing consultant who has covered physics and high-performance computing for more than 25 years. Disclosure statement.
