Thermal decay rate of a metastable state with two degrees of freedom: Dynamical modelling versus approximate analytical formula; Pramana - Journal of Physics; Vol. 88, iss. 6

Detaylı Bibliyografya
Parent link:Pramana - Journal of Physics
Vol. 88, iss. 6.— 2017.— [90, 10 p.]
Yazar: Gonchar I. I. Igor Ivanovich
Müşterek Yazar: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Центр измерений свойств материалов (ЦИСМ)
Diğer Yazarlar: Chushnyakova M. V. Mariya Vladimirovna
Özet:Title screen
Accuracy of the Kramers approximate formula for the thermal decay rate of the metastable state is studied for the two-dimensional potential pocket. This is done by comparing with the quasistationary rate resulting from the dynamical modelling. It is shown that the Kramers rate is in agreement with the quasistationary rate within the statistical errors provided the absorptive border is far enough from the potential ridge restricting the metastable state. As the absorptive border (or its part) gets closer to the ridge, the Kramers formula underestimates the quasistationary rate. The difference reaches approximately the factor of 2 when the absorptive border coincides with the ridge.
Режим доступа: по договору с организацией-держателем ресурса
Dil:İngilizce
Baskı/Yayın Bilgisi: 2017
Konular:
Online Erişim:https://doi.org/10.1007/s12043-017-1410-3
Materyal Türü: Elektronik Kitap Bölümü
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656881

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