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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5991

Title: Spectroscopy and thermometry of drumhead modes in a mesoscopic trapped-ion crystal using entanglement
Authors: Sawyer, BC
Britton, JW
Keith, AC
Joseph Wang, CCJ
Freericks, JK
Uys, H
Biercuk, MJ
Bollinger, JJ
Keywords: Spectroscopy
Thermometry
Quantum physics
Issue Date: May-2012
Publisher: American Physical Society
Citation: Sawyer, BC, Britton, JW, Keith, AC, Joseph Wang, CCJ, Freericks, JK, Uys, H, Biercuk, MJ and Bollinger, JJ. 2012. Spectroscopy and thermometry of drumhead modes in a mesoscopic trapped-ion crystal using entanglement. Physical Review Letters, vol. 108, DOI: 10.1103/PhysRevLett.108.213003
Series/Report no.: Workflow;9244
Abstract: We demonstrate spectroscopy and thermometry of individual motional modes in a mesoscopic 2D ion array using entanglement-induced decoherence as a method of transduction. Our system is a 400 µm-diameter planar crystal of several hundred 9Be+ ions exhibiting complex drumhead modes in the confining potential of a Penning trap. Exploiting precise control over the 9Be+ valence electron spins, we apply a homogeneous spin-dependent optical dipole force to excite arbitrary transverse modes with an effective wavelength approaching the interparticle spacing (20 µm). Center-of-mass displacements below 1 nm are detected via the entanglement of spin and motional degrees of freedom.
Description: Creative Commons Attribution 3.0 License (CC-BY), which permits authors and others to copy, distribute, transmit, and adapt the work, provided that proper credit is given.
URI: http://prl.aps.org/abstract/PRL/v108/i21/e213003
http://prl.aps.org/pdf/PRL/v108/i21/e213003
http://hdl.handle.net/10204/5991
ISSN: 0031-9007
Appears in Collections:Laser physics and technology
General science, engineering & technology

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