%0 Journal Article %1 Hackermuller2010Anomalous %A Hackermuller, Lucia %A Schneider, Ulrich %A Moreno-Cardoner, Maria %A Kitagawa, Takuya %A Best, Thorsten %A Will, Sebastian %A Demler, Eugene %A Altman, Ehud %A Bloch, Immanuel %A Paredes, Belen %D 2010 %J Science %K fermions, optical-lattice %N 5973 %P 1621--1624 %R 10.1126/science.1184565 %T Anomalous Expansion of Attractively Interacting Fermionic Atoms in an Optical Lattice %U http://dx.doi.org/10.1126/science.1184565 %V 327 %X The interplay of thermodynamics and quantum correlations can give rise to counterintuitive phenomena in many-body systems. We report on an isentropic effect in a spin mixture of attractively interacting fermionic atoms in an optical lattice. As we adiabatically increase the attraction between the atoms, we observe that the gas expands instead of contracting. This unexpected behavior demonstrates the crucial role of the lattice potential in the thermodynamics of the fermionic Hubbard model. 10.1126/science.1184565

@article{Hackermuller2010Anomalous, abstract = {{The interplay of thermodynamics and quantum correlations can give rise to counterintuitive phenomena in many-body systems. We report on an isentropic effect in a spin mixture of attractively interacting fermionic atoms in an optical lattice. As we adiabatically increase the attraction between the atoms, we observe that the gas expands instead of contracting. This unexpected behavior demonstrates the crucial role of the lattice potential in the thermodynamics of the fermionic Hubbard model. 10.1126/science.1184565}}, added-at = {2019-02-26T15:22:34.000+0100}, author = {Hackermuller, Lucia and Schneider, Ulrich and Moreno-Cardoner, Maria and Kitagawa, Takuya and Best, Thorsten and Will, Sebastian and Demler, Eugene and Altman, Ehud and Bloch, Immanuel and Paredes, Belen}, biburl = {https://www.bibsonomy.org/bibtex/244d4b36727d048a8c3dd8536505e4ced/rspreeuw}, citeulike-article-id = {6912669}, citeulike-linkout-0 = {http://dx.doi.org/10.1126/science.1184565}, citeulike-linkout-1 = {http://www.sciencemag.org/cgi/content/abstract/327/5973/1621}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/20339067}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=20339067}, day = 26, doi = {10.1126/science.1184565}, interhash = {1217eb8cf473db39e1554614ba07225d}, intrahash = {44d4b36727d048a8c3dd8536505e4ced}, journal = {Science}, keywords = {fermions, optical-lattice}, month = mar, number = 5973, pages = {1621--1624}, pmid = {20339067}, posted-at = {2010-04-09 14:49:49}, priority = {2}, timestamp = {2019-02-26T15:22:34.000+0100}, title = {{Anomalous Expansion of Attractively Interacting Fermionic Atoms in an Optical Lattice}}, url = {http://dx.doi.org/10.1126/science.1184565}, volume = 327, year = 2010 }