IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
artículos
Título:
Quantum confinement and negative heat capacity
Autor/es:
PABLO SERRA; MARCELO CARIGNANO; FAHHAD ALHARBI; SABRE KAIS
Revista:
EUROPHYSICS LETTERS
Editorial:
EPL ASSOCIATION
Referencias:
Lugar: Bologna; Año: 2013 vol. 104 p. 160041 - 160045
ISSN:
0295-5075
Resumen:
Thermodynamics dictates that the specific heat of a system is strictly non-negative.  However, in finite classical systems there are well-known theoretical and experimental cases where  this rule is violated, in particular finite atomic clusters. Here, we show for the first time that negative heat capacity can also occur in finite quantum systems. The physical scenario on which this effect might be experimentally observed is discussed.