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Title: Entropic tunneling time and its applications
Other Titles: Entropik tünelleme zamanı ve uygulamaları
Authors: Demir, Durmuş Ali
Güner, Tuğrul
Keywords: Quantum tunneling
Tunneling time
Alpha decay
Scanning Tunneling Microscope
Issue Date: 2014
Publisher: Izmir Institute of Technology
Source: Güner, T. (2014). Entropic tunneling time and its applications. Unpublished master's thesis, İzmir Institute of Technology, İzmir, Turkey
Abstract: Quantum tunneling is one of the most interesting consequences of quantum behaviour. However, even though it is known and understood well, due to non-existence of a time operator in quantum mechanics, estimating what time it takes for a particle to cross a barrier remains an open question. There are some attempts like phase time, dwell time, Larmor clock, Buttiker-Landauer, and Feynman Path Integral approaches. These definitions do not agree with each other and with experiment. In this thesis work, tunneling time problem is studied in a rather new context. Knowing time necessitates momentum, we deal with momentum state vectors and define entropy accordingly. This entropy, which gives a temperature, defines a thermal energy in the tunneling region. With this thermal energy and uncertainty principle, resulting time deviation of the particle from the classically instantaneous is stated as our tunneling time, entropic tunneling time. Moreover, we compare this tunneling time with recent experiments in detail, and find that, it is in very good agreement with the data. Then, we apply this entropic tunneling time to α - decay, STM and creation of universe from nothing to predict natural time scale of these processes.
Description: Thesis (Master)--Izmir Institute of Technology, Physics, Izmir, 2014
Includes bibliographical references (leaves: 56-61)
Text in English; Abstract: Turkish and English
viii, 75 leaves
Appears in Collections:Master Degree / Yüksek Lisans Tezleri

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