JILA Auditorium

Characterizing Quantum Devices Using the Principles of Quantum Information

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Abstract: The past few decades have born out exquisite improvements in the control of quantum systems, with quantum computing and quantum metrology at the forefront. It has therefore become essential to design methodologies for assessing the performance of these devices. Unsurprisingly, the field of quantum information has already paved the way forward.

A Fully Crystalline Cryogenic Reference Cavity

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Abstract: To date, neutral atom optical lattice clocks have demonstrated the highest precision measurements of fractional frequency shifts. State-of-the-art optical oscillators employing cryogenic reference cavities have been used to push this frontier, enabling record-level stabilities and resulting in foundational advances in optical frequency metrology. The fundamental performance of cryogenic cavities utilizing crystalline spacers and substrates has been limited by the Brownian thermal noise associated with mechanical dissipation of the mirror coatings.

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