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Physics Colloquium

Gravitational Quantum States of Neutrons, Atoms and Anti-atoms

Presented by Valery Nesvizhevsky, ILL

Quantum gravitational spectroscopy with ultracold systems is an emerging field based on recent experimental and theoretical advances. Gravitational spectroscopy profits from exceptional sensitivity due to the extreme weakness of gravitation compared to other fundamental interactions; thus, it provides an access to the precision frontier in particle physics and other domains. Quantum gravitational spectroscopy is its ultimate limit addressing the most fragile and sensitive quantum states of ultracold particles and systems. Ultracold particles – neutrons, atoms, and antiatoms – with sufficiently high phase-space density are the condition for providing observable phenomena with gravitational quantum states. Some of such studies, like those with ultracold neutrons, have become reality; others with ultracold atoms and antiatoms are in preparation. GRANIT is one of follow-up projects pushing forward the precision and sensitivity of quantum gravitational spectroscopy with ultracold neutrons. Quantum states of antihydrogen atoms in GBAR are the key for pushing the precision of measurements of gravitational properties of antimatter. Precision measurements of gravitational quantum states of atoms and neutron whispering-gallery states are promissing methods for improving constraints for fundamental short-range forces.

Monday, November 26, 2018 at 3:30pm to 4:30pm

Science and Engineering Research Facility (SERF), 307
1414 Circle Dr, Knoxville, TN 37996

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Lectures & Presentations





Physics and Astronomy

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Department of Physics and Astronomy

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