Quantum tunneling fragmentation model

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:19:59Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:45:07Z : No. of bitstreams: 1 2-s2.0-0034207355.pdf: 149291 bytes, checksum: b402b628f6cd57af18851a24e80416db (MD5) Made available in DSpace on 2014-05-27T11:19:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-12-01 A nonthermal quantum mechanical statistical fragmentation model based on tunneling of particles through potential barriers is studied in compact two- and three-dimensional systems. It is shown that this fragmentation dynamics gives origin to several static and dynamic scaling relations. The critical exponents are found and compared with those obtained in classical statistical models of fragmentation of general interest, in particular with thermal fragmentation involving classical processes over potential barriers. Besides its general theoretical interest, the fragmentation dynamics discussed here is complementary to classical fragmentation dynamics of interest in chemical kinetics and can be useful in the study of a number of other dynamic processes such as nuclear fragmentation. ©2000 The American Physical Society. Departamento de Física Universidade Federal de Pernambuco, 50670-901 Recife-PE Inst. de Fis. Teórica Universidade Estadual Paulista, 01405-900 São Paulo, SP Laboratory for Theoretical Physics Inst. for Nucl. Sci. Vinča, P. O. Box 522, YU-11001 Belgrade Inst. de Fis. Teórica Universidade Estadual Paulista, 01405-900 São Paulo, SP