Dissipative Dynamics of Two-Level Systems in Low Temperature Glasses

2014 ◽  
Vol 118 (12) ◽  
pp. 2220-2227 ◽  
Author(s):  
Ke-Wei Sun ◽  
Yang Zhao
Keyword(s):  
Low Temperature ◽  
Dissipative Dynamics ◽  
Two Level Systems

scholarly journals В каких случаях и почему стандартная модель туннелирующих двухуровневых систем неадекватно описывает низкотемпературную внутреннюю динамику реальных стекол

2019 ◽  
Vol 127 (7) ◽  
pp. 46
Author(s):  
Ю.Г. Вайнер
Keyword(s):  
Low Temperature ◽  
Standard Model ◽  
Single Molecule ◽  
Local Level ◽  
Spectral Dynamics ◽  
Molecular Systems ◽  
Sample Shape ◽  
The Standard Model ◽  
Two Level Systems ◽  
Fluorescent Molecules

AbstractExperiments carried out in recent years using single-molecule spectroscopy to study the low-temperature dynamics of some molecular solid-state media with a disordered internal structure made it possible to obtain new information on the dynamics of such media at the local level. In some substances, the time-dependent behavior of the majority of individual spectra of single fluorescent molecules introduced into the studied medium as a local spectral probe corresponded to the predictions of the standard model of tunneling two-level systems. In others, the behavior of most of the spectra of single molecules was more complicated, which it is difficult to describe in the framework of the standard model. This paper is devoted to the analysis of the results of studies of low-temperature spectral dynamics of single fluorescent molecules in a number of disordered molecular systems (amorphous polyisobutylene, toluene, cumene, propylene carbonate). The observed deviations from the predictions of the theory are associated with the microstructure of the systems under study and the sample shape. Possible reasons for the deviations of the observed local spectral dynamics from the predictions of the standard model of tunneling two-level systems are discussed. Inadequately.

scholarly journals Dissipative Dynamics in Semiconductors at Low Temperature

2012 ◽  
Vol 147 (2) ◽  
pp. 448-486 ◽  
Author(s):  
George Androulakis ◽  
Jean Bellissard ◽  
Christian Sadel
Keyword(s):  
Low Temperature ◽  
Dissipative Dynamics

scholarly journals Low-temperature dipolar echoes in amorphous dielectrics: Significance of relaxation and decoherence free two-level systems

2013 ◽  
Vol 104 (5) ◽  
pp. 57006 ◽  
Author(s):  
A. L. Burin ◽  
J. M. Leveritt ◽  
G. Ruyters ◽  
C. Schötz ◽  
M. Bazrafshan ◽  
...  
Keyword(s):  
Low Temperature ◽  
Two Level Systems
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