Renvoisé, P.; Bush, J. W. M.; Prakash, M.; Quéré, D.; Renvoisé, P.; Department of Mathematics, MIT - 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Bush, J. W. M.; Department of Mathematics, MIT - 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Prakash, M.; Center for Bits and Atoms, MIT - 20 Ames Street, Cambridge, MA 02139, USA; Quéré, D.; PMMH, UMR 7636 du CNRS, ESPCI - 10 rue Vauquelin, 75005 Paris, France, EU