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Mitchell, Morgan W.
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ICREA Research Professor at ICFO (Institut de Ciències Fotòniques). Experimental Sciences & Mathematics
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Born in 1968 in Palo Alto, California, USA, Morgan Mitchell earned his PhD in Physics
from the University of California at Berkeley in 1999 with a thesis on the quantum optics of
photon-photon interactions. His subsequent research career has taken him to Paris, in the group of Serge Haroche and Jean-Michel Raimond at the Ecole Normale Superieure, where he worked on interaction of cold atoms and micro-sphere resonators, to Portland Oregon where at Reed College he developed ultra-low power entangled photon sources, and to the University of Toronto, where in the group of Aephraim Steingberg he demonstrated the first multi-photon NooN states and quantum process tomography. In 2004 he joined ICFO as a Junior Group Leader. His group "quantum optics with cold atoms and non-classical light," uses narrow-band quantum light sources and cold atomic ensembles to study interaction of light and matter at the most fundamental, quantum mechanical level.
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Research Interests
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I work in experimental quantum optics, quantum information and especially quantum metrology. Quantum metrology uses quantum effects to improve the sensitivity of demanding measurements. To study the interaction of light and matter at the quantum level, I use cold atoms and high coherence, atom-tuned quantum light sources. For this, my group has developed ultra-bright sources of entangled photon pairs, atom-tuned polarization squeezing and a quantum-noise-limited atomic ensemble system. We have demonstrated quantum non-demolition measurements using dynamical decoupling to reduce decoherence, and interaction-based measurements beyond the so-called “Heisenberg limit.” The quantum optics of optical magnetometers, currently the best sensors for low-frequency magnetic fields, is of particular interest. Recently I demonstrated the first application of quantum optics to improve magnetometer sensitivity, and a high-spatial-resolution magnetometer based on cold atoms.
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KeyWords
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Quantum Optics, Atomic Physics, Quantum Information, Quantum Metrology
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