Colloquium Speaker, Ania Bleszynski Jayich (UC Santa Barbara) today @ 4:00pm in The Robert Smith Seminar Room. There will be a reception in the Atrium at 3:45PM

[Patterson, Robin L.]

Please take note of Colloquium taking place today, Tuesday, January 19, 2016 at 4:00 PM in The Robert Smith Seminar Room. There will be a reception in the Atrium at 3:45PM. Details concerning the talk are as follows:

Speaker:       Ania Bleszynski Jayich (UC Santa Barbara)
Date:             Tuesday, January 19, 2016
Time:             4:00 PM
Place:            1080 Physics Research Building, The Robert Smith Seminar Room
Title:               Quantum Sensing and Imagining with Diamond Spins


Abstract:  The nitrogen vacancy (NV) center in diamond is an atom-sized defect in diamond whose spin exhibits remarkable quantum coherence in a uniquely accessible way: at room temperature, in ambient atmosphere, and with a simple optical microscope. Furthermore the NV center is an excellent sensor of magnetic, electric, thermal, and strain fields on the nanoscale, and hence it is being actively explored for a variety of quantum technologies. In this talk, I describe the development of an NV-based scanning probe magnetometer and its application to studying nanoscale magnetism in condensed matter systems. Importantly the magnetometer operates at liquid helium temperatures, opening up the possibility of exploring various condensed matter phenomena at low temperatures. Our magnetic images of superconductors and helical magnets indicate our scanning magnetometer has nanometer-scale stability and spatial resolution. I also present results of a diamond hybrid quantum system in which spin, photons, and phonons are coupled. Using high-quality diamond mechanical resonators strain-coupled to embedded NV centers, we show that coherent mechanical control of individual diamond spins and their optical properties is possible. These results are encouraging for proposals to use such a spin-mechanical platform for spin-squeezing, phonon-mediated spin-spin interactions, and phonon cooling and lasing.

Robin
[The Ohio State University]
Robin Patterson
Undergraduate Program, Colloquium and Seminar Coordinator
Department of Physics
1040K Physics Research Building, 191 W. Woodruff Avenue, Columbus, OH 43210
(614) 292-8523 Office     (614) 292-7557 Fax
patterson.716 at osu.edu<mailto:patterson.716 at osu.edu> osu.edu<http://osu.edu/>

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