Otro
Increase of temperature of an ideal nondegenerate quantum gas in a suddenly expanding box due to energy quantization
Registro en:
Physics Letters A. Amsterdam: Elsevier B.V., v. 373, n. 1, p. 45-48, 2008.
0375-9601
10.1016/j.physleta.2008.10.063
WOS:000261795700010
Autor
Dodonov, V. V.
Lopes, D. O. Vieira
Resumen
We show that due to energy quantization the temperature of an ideal nondegenerate quantum gas in a rectangular box always increases after a sudden expansion of the box and a subsequent thermalization. The maximal increment of temperature is proportional to the square root of the product of the initial absolute temperature by the energy of the first discrete quantum level, i.e., it is proportional to the first power of the Planck constant. (C) 2008 Elsevier B.V. All rights reserved. Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)