Role of statistical fluctuations for the interpretation of Arrhenius-type plots in nuclear multifragmentation

1997 ◽  
Vol 56 (4) ◽  
pp. R1683-R1686 ◽  
Author(s):  
J. Tõke ◽  
D. K. Agnihotri ◽  
B. Djerroud ◽  
W. Skulski ◽  
W. U. Schröder
Keyword(s):  
Statistical Fluctuations ◽  
Nuclear Multifragmentation

scholarly journals Modeling of hot-carrier degradation based on thorough carrier transport treatment

2014 ◽  
Vol 27 (4) ◽  
pp. 479-508 ◽  
Author(s):  
Stanislav Tyaginov ◽  
Yannick Wimmer ◽  
Tibor Grasser
Keyword(s):  
Electron Scattering ◽  
Carrier Transport ◽  
Drain Current ◽  
Boltzmann Transport ◽  
Hot Carrier ◽  
Statistical Fluctuations ◽  
Channel Gate ◽  
Current Change ◽  
Hot Carrier Degradation

We present and validate a physics-basedmodel for hot-carrier degradation. The model is based on a thorough carrier transport treatment by means of an exact solution of the Boltzmann transport equation. Such important ingredients relevant for hot-carrier degradation as the competing mechanisms of bond dissociation, electron-electron scattering, the activation energy reduction due to the interaction of the dipole moment of the bond with the electric field as well as statistical fluctuations of this energy are incorporated in our approach. The model is validated in order to represent the linear drain current change in three different devices subjected to hot-carrier stress under different conditions. The main demand is that the model has to use a unique set of parameters. We analyze the importance of all the model ingredients, especially the role of electron-electron scattering. We check the idea that the channel/gate length of the device alone is not enough to judge whether electron-electron scattering is important or not and instead a combination of the device topology and stress conditions needs to be used.

Influence of Inhomogeneities on Propagation of Streamers

2010 ◽  
Vol 5 (1) ◽  
pp. 29-36
Author(s):  
Khubita D. Lamazhapov ◽  
Dmitriy A. Rybakov
Keyword(s):  
Power Function ◽  
Background Radiation ◽  
Radiation Power ◽  
Negative Ions ◽  
Free Electrons ◽  
Statistical Fluctuations ◽  
Simulation Results

It has been estimated concentration of particles bearing statistical fluctuations which have effect on propagation of streamers and avalanches. Geometry of fluctuations has been analyzed. It has been circumstantiated role of free electrons and negative ions caused by background radiation. Power function has been proposed in order to account percolation effects caused by plural development of avalanches and streamers. Simulation results have been represented.

scholarly journals Thermal phase transition in nuclear multifragmentation: The role of Coulomb energy and finite size

2001 ◽  
Vol 64 (4) ◽  
Author(s):  
B. K. Srivastava ◽  
S. Albergo ◽  
F. Bieser ◽  
F. P. Brady ◽  
Z. Caccia ◽  
...  
Keyword(s):  
Phase Transition ◽  
Finite Size ◽  
Coulomb Energy ◽  
Thermal Phase Transition ◽  
Thermal Phase ◽  
Nuclear Multifragmentation

Functional integration: From path to field integrals

2019 ◽  
pp. 13-34
Author(s):  
Jean Zinn-Justin
Keyword(s):  
Large Scale ◽  
Relativistic Quantum ◽  
Functional Integration ◽  
Theoretical Physics ◽  
Relativistic Quantum Mechanics ◽  
Functional Integrals ◽  
Large Scale Systems ◽  
Fermion Systems ◽  
Statistical Fluctuations

Chapter 2 is rather descriptive and introduces the notion of functional (path and field) integrals, for boson (the holomorphic formalism) as well as fermion systems (this necessitates the introduction of Grassmann integration) as they are used in physics. Prior to the second half of the twentieth century, the technical tools of theoretical physics were mainly differential or partial differential equations. However, when systematic investigations of large scale systems with quantum of statistical fluctuations began, new tools were required. This led to the development of functional integration. In this chapter, the role of Gaussian measures and Gaussian expectation values is emphasized, leading to Wick’s theorem, a tool for perturbative calculations. Functional integrals provide remarkable tools to study the classical limit and barrier penetration. They provide a simple bridge between non–relativistic quantum mechanics and quantum field theory.

scholarly journals Role of bulk energy in nuclear multifragmentation

2008 ◽  
Vol 77 (3) ◽  
Author(s):  
N. Buyukcizmeci ◽  
A. S. Botvina ◽  
I. N. Mishustin ◽  
R. Ogul
Keyword(s):  
Bulk Energy ◽  
Nuclear Multifragmentation
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