Events Calendar
Diving Deep into a Quantum-Information-Processing Problem: Quantum Limits on the Performance of Linear Amplifiers
Thursday September 14, 2017
11:00 am
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Presenter: | Dr. Carlton Caves Distinguished Professor of Physics and Astronomy, UNM and the Director of the Center for Quantum Information and Control, University of New Mexico |
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Series: | OSE Seminars | |
Abstract: | Josephson-effect linear amplifiers now operate at the fundamental quantum limit on noise temperature for linear amplifiers. So why not do this old problem---quantum limits on the performance of linear amplifiers---right, using the modern tools of quantum information theory? I will discuss the general limits on the performance of linear amplifiers, both those that act deterministically and those that, like air travel, only work some of the time. I might get around to discussing how this question generalizes to arbitrary linear phase-space transformations for multiple modes. All of this illustrates how an old problem---in this case, a problem 70 years old---just keeps on giving as improving experimental techniques pose new questions and new theoretical tools allow those questions to be answered. | |
File/Video Recording: | http://panda3.phys.unm.edu/videos/OSE-170914-Caves.mp4 | |
Location: | PAIS-2540, PAIS | |