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Kovachy T, Hogan JM, Sugarbaker A, et al. Matter wave lensing to picokelvin temperatures. Phys Rev Lett. 2015;114(14):143004doi: 10.1103/PhysRevLett.114.143004.
Kovachy, T., Hogan, J. M., Sugarbaker, A., Dickerson, S. M., Donnelly, C. A., Overstreet, C., & Kasevich, M. A. (2015). Matter wave lensing to picokelvin temperatures. Physical review letters, 114(14), 143004. https://doi.org/10.1103/PhysRevLett.114.143004
Kovachy, Tim, et al. "Matter wave lensing to picokelvin temperatures." Physical review letters vol. 114,14 (2015): 143004. doi: https://doi.org/10.1103/PhysRevLett.114.143004
Kovachy T, Hogan JM, Sugarbaker A, Dickerson SM, Donnelly CA, Overstreet C, Kasevich MA. Matter wave lensing to picokelvin temperatures. Phys Rev Lett. 2015 Apr 10;114(14):143004. doi: 10.1103/PhysRevLett.114.143004. Epub 2015 Apr 08. PMID: 25910118.
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Phys Rev Lett. 2015 Apr 10;114(14):143004. doi: 10.1103/PhysRevLett.114.143004. Epub 2015 Apr 08.

Matter wave lensing to picokelvin temperatures.

Physical review letters

Tim Kovachy, Jason M Hogan, Alex Sugarbaker, Susannah M Dickerson, Christine A Donnelly, Chris Overstreet, Mark A Kasevich

Affiliations

  1. Department of Physics, Stanford University, Stanford, California 94305, USA.

PMID: 25910118 DOI: 10.1103/PhysRevLett.114.143004

Abstract

Using a matter wave lens and a long time of flight, we cool an ensemble of ^{87}Rb atoms in two dimensions to an effective temperature of less than 50_{-30}^{+50}  pK. A short pulse of red-detuned light generates an optical dipole force that collimates the ensemble. We also report a three-dimensional magnetic lens that substantially reduces the chemical potential of evaporatively cooled ensembles with a high atom number. By observing such low temperatures, we set limits on proposed modifications to quantum mechanics in the macroscopic regime. These cooling techniques yield bright, collimated sources for precision atom interferometry.

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