Fernández Tejero, CarlosBaus, Marc2023-06-202023-06-201998-041063-651X10.1103/PhysRevE.57.4821https://hdl.handle.net/20.500.14352/58872© 1998 The American Physical Society. M.B. acknowledges financial support from the Fonds National de la Recherche Scientifique (Belgium) and C.F.T. that from the Dirección General de Investigación Científica y Técnica (Spain), Grant No. PB94-0265.We show how a van der Waals theory of simple fluids with an interaction potential whose range has a nonmonotonic density dependence can lead to a liquid-liquid transition in close analogy to recent observations and simulations.engjournal articlehttp://dx.doi.org/10.1103/PhysRevE.57.4821http://pre.aps.org/restricted access536Phase-BehaviorPolyamorphismWaterTransitionsGlassOrderTermodinámica2213 Termodinámica