Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Streed E"'
Autor:
Blūms, V., Piotrowski, M., Hussain, M. I., Norton, B. G., Connell, S. C., Gensemer, S., Lobino, M., Streed, E. W.
All physical interactions are mediated by forces. Ultra-sensitive force measurements are therefore a crucial tool for investigating the fundamental physics of magnetic, atomic, quantum, and surface phenomena. Laser cooled trapped atomic ions are a we
Externí odkaz:
http://arxiv.org/abs/1703.06561
Autor:
Ghadimi, M., Blūms, V., Norton, B. G., Fisher, P. M., Connell, S. C., Amini, J. M., Volin, C., Hayden, H., Pai, C. S., Kielpinski, D., Lobino, M., Streed, E. W.
Publikováno v:
npj Quantum Information 3, Article number: 4 (2017)
Quantum networking links quantum processors through remote entanglement for distributed quantum information processing (QIP) and secure long-range communication. Trapped ions are a leading QIP platform, having demonstrated universal small-scale proce
Externí odkaz:
http://arxiv.org/abs/1607.00100
We demonstrate three-photon excitation in quantum dots with a mode-locked fiber laser operating in the telecommunications band. We compare spectra and intensity dependence of fluorescence from one- and three-photon excitation of commercially availabl
Externí odkaz:
http://arxiv.org/abs/1402.1232
Publikováno v:
PRL 110, 113605 (2013)
Fundamental optics such as lenses and prisms work by applying phase shifts to incoming light via the refractive index. In these macroscopic devices, many particles each contribute a miniscule phase shift, working together to impose a total phase shif
Externí odkaz:
http://arxiv.org/abs/1208.5091
Publikováno v:
Nature Commun 3, 933 (2012)
Absorption imaging has played a key role in the advancement of science from van Leeuwenhoek's discovery of red blood cells to modern observations of dust clouds in stellar nebulas and Bose-Einstein condensates. Here we show the first absorption imagi
Externí odkaz:
http://arxiv.org/abs/1201.5280
The metastable ^{2}F_{7/2} and ^{2}D_{3/2} states of Yb^{+} are of interest for applications in metrology and quantum information and also act as dark states in laser cooling. These metastable states are commonly repumped to the ground state via the
Externí odkaz:
http://arxiv.org/abs/1107.1021
We demonstrate millikelvin thermometry of laser cooled trapped ions with high-resolution imaging. This equilibrium approach is independent of the cooling dynamics and has lower systematic error than Doppler thermometry, with \pm5 mK accuracy and \pm1
Externí odkaz:
http://arxiv.org/abs/1106.1708
Publikováno v:
Optics Letters, Vol. 36, Issue 8, pp. 1371-1373 (2011)
A microfabricated phase Fresnel lens was used to image ytterbium ions trapped in a radio frequency Paul trap. The ions were laser cooled close to the Doppler limit on the 369.5 nm transition, reducing the ion motion so that each ion formed a near poi
Externí odkaz:
http://arxiv.org/abs/1101.4443
Publikováno v:
Applied Physics Letters 93 071103 (2008)
We stabilize an ultraviolet diode laser system at 369.5 nm to the optical absorption signal from Yb+ ions in a hollow-cathode discharge lamp. The error signal for stabilization is obtained by Zeeman spectroscopy of the 3 GHz-wide absorption feature.
Externí odkaz:
http://arxiv.org/abs/0806.1794
Publikováno v:
Quant. Inform. Comp. 9, 0203 (2009)
Efficient ion-photon coupling is an important component for large-scale ion-trap quantum computing. We propose that arrays of phase Fresnel lenses (PFLs) are a favorable optical coupling technology to match with multi-zone ion traps. Both are scalabl
Externí odkaz:
http://arxiv.org/abs/0805.2437