%0 Book Section %1 statphys23_0833 %A Lozada-cassou, M. %A Jimenez-angeles, F. %A Odriozola, G.M. %A Duda, Y. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K confinement inversion population statphys23 topic-6 %T Induced population inversion in a confined nonadditive hard-sphere binary fluid %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=833 %X A non-additive hard spheres binary fluid is confined by a cylindrical nanopore, such that, it is in contact with a reservoir. We found that at low and intermediate values of the bulk density the more concentrated bulk species is preferentially absorbed by the pore, as expected. However, further increment of the bulk density lead to an abrupt population inversion of the confined fluid, i.e., the pore becomes rich in the bulk less concentrated species. This phenomenon is a function of the pore size, the non-additivity parameter, the bulk density, and composition. We discuss our results in relation to the phase separation of the bulk. Thermodynamical arguments are given to elucidate this phenomenon.

@incollection{statphys23_0833, abstract = {A non-additive hard spheres binary fluid is confined by a cylindrical nanopore, such that, it is in contact with a reservoir. We found that at low and intermediate values of the bulk density the more concentrated bulk species is preferentially absorbed by the pore, as expected. However, further increment of the bulk density lead to an abrupt population inversion of the confined fluid, i.e., the pore becomes rich in the bulk less concentrated species. This phenomenon is a function of the pore size, the non-additivity parameter, the bulk density, and composition. We discuss our results in relation to the phase separation of the bulk. Thermodynamical arguments are given to elucidate this phenomenon.}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Lozada-cassou, M. and Jimenez-angeles, F. and Odriozola, G.M. and Duda, Y.}, biburl = {https://www.bibsonomy.org/bibtex/2e5dbc9656ff664d529937dd7b70e2529/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {ef2f6a00c027a45140fead332d5d7846}, intrahash = {e5dbc9656ff664d529937dd7b70e2529}, keywords = {confinement inversion population statphys23 topic-6}, month = {9-13 July}, timestamp = {2007-06-20T10:16:30.000+0200}, title = {Induced population inversion in a confined nonadditive hard-sphere binary fluid}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=833}, year = 2007 }