PHYSICAL SCIENCES

Hosten Group

Quantum Sensing with Atoms and Light

The first quantum revolution yielded lasers and transistors more than half a century ago. These days, a second quantum revolution is unraveling, yielding new quantum-enhanced technologies for information processing, communications and sensing. The Hosten group is interested in developing new protocols and techniques in the sensing branch of these developments using cold atoms and light.

Onur Hosten is an experimental atomic and optical physicist. His group develops innovative techniques to control the quantum properties of atomic and optical systems. The experimental platform is many-atom cavity-quantum-electrodynamics (cQED), where large ensembles of atoms are laser cooled and trapped inside of an optical cavity and made to interact strongly with light resonating inside the cavity. The focus of the Hosten group is investigating the concepts of quantum entanglement, quantum measurement, and light-assisted atomic interactions to develop new sensing techniques, e.g., for force or acceleration sensing, or making ultra-precise clocks. In the long term, Hosten group is interested in applying the precision sensors they develop to explore challenging experimental questions such as the precise interplay between quantum mechanics and gravity, or the nature of dark matter.

Group Leader


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Team


Current Projects

Design and construction of a traveling wave optical cavity with intra-cavity trapped cold atoms | Generation of spin-squeezed states of atomic ensembles | Mapping atomic spin correlations into motional degrees of freedom | Squeezed-state atom interferometry


Publications

Hosten O, Krishnakumar R, Engelsen N, Kasevich M. 2016. Quantum phase magnification. Science. 352(6293), 1552–1555. View

Hosten O, Engelsen N, Krishnakumar R, Kasevich M. 2016. Measurement noise 100 times lower than the quantum-projection limit using entangled atoms. Nature. 529(7587), 505–508. View

Hosten O, Kwiat P. 2008. Observation of the spin hall effect of light via weak measurements. Science. 319(5864), 787–790. View

Hosten O, Rakher M, Barreiro J, Peters N, Kwiat P. 2006. Counterfactual computation revisited. Quantum Physics. View

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Career

since 2018 Assistant Professor, IST Austria
2015 – 2017 Research Associate, Stanford University, Palo Alto, USA
2010 – 2015 Postdoctoral Scholar, Stanford University , Palo Alto, USA
2010 PhD, University of Illinois at Urbana-Champaign, USA


Selected Distinctions

2011 Outstanding Doctoral Theses in AMO Physics (top four), American Physical Society
2010 Karl van Bibber Postdoctoral Research Fellowship, Stanford University
2010 Pappalardo Postdoctoral Fellowship (offered), Massachusetts Institute of Technology
2008 Ross J. Martin Award for Outstanding Research Achievement, University of Illinois at Urbana-Champaign


Additional Information

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