%0 Journal Article %1 Gerbier2006Probing %A Gerbier, Fabrice %A Fölling, Simon %A Widera, Artur %A Mandel, Olaf %A Bloch, Immanuel %D 2006 %I APS %J Physical Review Letters %K bec, mott-insulator, squeezing %N 9 %P 090401+ %R 10.1103/physrevlett.96.090401 %T Probing Number Squeezing of Ultracold Atoms across the Superfluid-Mott Insulator Transition %U http://dx.doi.org/10.1103/physrevlett.96.090401 %V 96 %X The evolution of on-site number fluctuations of ultracold atoms in optical lattices is experimentally investigated by monitoring the suppression of spin-changing collisions across the superfluid-Mott insulator transition. For low atom numbers, corresponding to an average filling factor close to unity, large on-site number fluctuations are necessary for spin-changing collisions to occur. The continuous suppression of spin-changing collisions is thus direct evidence for the emergence of number-squeezed states. In the Mott insulator regime, we find that spin-changing collisions are suppressed until a threshold atom number, consistent with the number where a Mott plateau with doubly occupied sites is expected to form.

@article{Gerbier2006Probing, abstract = {{The evolution of on-site number fluctuations of ultracold atoms in optical lattices is experimentally investigated by monitoring the suppression of spin-changing collisions across the superfluid-Mott insulator transition. For low atom numbers, corresponding to an average filling factor close to unity, large on-site number fluctuations are necessary for spin-changing collisions to occur. The continuous suppression of spin-changing collisions is thus direct evidence for the emergence of number-squeezed states. In the Mott insulator regime, we find that spin-changing collisions are suppressed until a threshold atom number, consistent with the number where a Mott plateau with doubly occupied sites is expected to form.}}, added-at = {2019-02-26T15:22:34.000+0100}, author = {Gerbier, Fabrice and F\"{o}lling, Simon and Widera, Artur and Mandel, Olaf and Bloch, Immanuel}, biburl = {https://www.bibsonomy.org/bibtex/2b4e252e3c97ba1efc82f67c61403e127/rspreeuw}, citeulike-article-id = {890601}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000096000009090401000001\&idtype=cvips\&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v96/e090401}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/physrevlett.96.090401}, doi = {10.1103/physrevlett.96.090401}, interhash = {6a17942ac3f05b920f788520abfea977}, intrahash = {b4e252e3c97ba1efc82f67c61403e127}, journal = {Physical Review Letters}, keywords = {bec, mott-insulator, squeezing}, number = 9, pages = {090401+}, posted-at = {2009-10-01 13:44:48}, priority = {2}, publisher = {APS}, timestamp = {2019-02-26T15:22:34.000+0100}, title = {{Probing Number Squeezing of Ultracold Atoms across the Superfluid-Mott Insulator Transition}}, url = {http://dx.doi.org/10.1103/physrevlett.96.090401}, volume = 96, year = 2006 }