%0 Journal Article %1 2009_nphys_Groblacher_Aspelmeyer %A Groblacher, Simon %A Hertzberg, Jared B. %A Vanner, Michael R. %A Cole, Garrett D. %A Gigan, Sylvain %A Schwab, K. C. %A Aspelmeyer, Markus %D 2009 %I Nature Publishing Group %J Nature Physics %K optomechanics %N 7 %P 485--488 %R 10.1038/nphys1301 %T Demonstration of an ultracold micro-optomechanical oscillator in a cryogenic cavity %U http://dx.doi.org/10.1038/nphys1301 %V 5 %X Preparing and manipulating quantum states of mechanical resonators is a highly interdisciplinary undertaking that now receives enormous interest for its far-reaching potential in fundamental and applied science1, 2. Up to now, only nanoscale mechanical devices achieved operation close to the quantum regime3, 4. We report a new micro-optomechanical resonator that is laser cooled to a level of 30 thermal quanta. This is equivalent to the best nanomechanical devices, however, with a mass more than four orders of magnitude larger (43 ng versus 1 pg) and at more than two orders of magnitude higher environment temperature (5 K versus 30 mK). Despite the large laser-added cooling factor of 4,000 and the cryogenic environment, our cooling performance is not limited by residual absorption effects. These results pave the way for the preparation of 100-μm scale objects in the quantum regime. Possible applications range from quantum-limited optomechanical sensing devices to macroscopic tests of quantum physics5, 6.

@article{2009_nphys_Groblacher_Aspelmeyer, abstract = {{Preparing and manipulating quantum states of mechanical resonators is a highly interdisciplinary undertaking that now receives enormous interest for its far-reaching potential in fundamental and applied science1, 2. Up to now, only nanoscale mechanical devices achieved operation close to the quantum regime3, 4. We report a new micro-optomechanical resonator that is laser cooled to a level of 30 thermal quanta. This is equivalent to the best nanomechanical devices, however, with a mass more than four orders of magnitude larger (43 ng versus 1 pg) and at more than two orders of magnitude higher environment temperature (5 K versus 30 mK). Despite the large laser-added cooling factor of 4,000 and the cryogenic environment, our cooling performance is not limited by residual absorption effects. These results pave the way for the preparation of 100-μm scale objects in the quantum regime. Possible applications range from quantum-limited optomechanical sensing devices to macroscopic tests of quantum physics5, 6.}}, added-at = {2013-09-09T23:59:35.000+0200}, author = {Groblacher, Simon and Hertzberg, Jared B. and Vanner, Michael R. and Cole, Garrett D. and Gigan, Sylvain and Schwab, K. C. and Aspelmeyer, Markus}, biburl = {https://www.bibsonomy.org/bibtex/2276235798efde279f9ea731ebcf5f27b/jacksankey}, citeulike-article-id = {5156032}, citeulike-linkout-0 = {http://dx.doi.org/10.1038/nphys1301}, citeulike-linkout-1 = {http://dx.doi.org/10.1038/nphys1301}, day = 07, doi = {10.1038/nphys1301}, interhash = {1637e4f79797e88e67caeb487b2af338}, intrahash = {276235798efde279f9ea731ebcf5f27b}, issn = {1745-2473}, journal = {Nature Physics}, keywords = {optomechanics}, month = jun, number = 7, pages = {485--488}, posted-at = {2009-09-27 21:06:53}, priority = {2}, publisher = {Nature Publishing Group}, timestamp = {2013-09-09T23:59:35.000+0200}, title = {{Demonstration of an ultracold micro-optomechanical oscillator in a cryogenic cavity}}, url = {http://dx.doi.org/10.1038/nphys1301}, volume = 5, year = 2009 }