scholarly journals Vacuum instability in time-dependent electric fields: New example of an exactly solvable case

2021 ◽  
Vol 104 (7) ◽  
Author(s):  
A. I. Breev ◽  
S. P. Gavrilov ◽  
D. M. Gitman ◽  
A. A. Shishmarev
Keyword(s):  
Electric Fields ◽  
Time Dependent ◽  
Solvable Case ◽  
Exactly Solvable ◽  
Vacuum Instability

Correlations of substituent effects on proton and fluorine chemical shifts with inverse ionization potentials

1967 ◽  
Vol 45 (24) ◽  
pp. 3143-3151 ◽  
Author(s):  
T. Schaefer ◽  
F. Hruska ◽  
H. M. Hutton
Keyword(s):  
Electric Fields ◽  
Chemical Shifts ◽  
Substituent Effects ◽  
Group Iv ◽  
The Other ◽  
Ionization Potentials ◽  
Time Dependent ◽  
Practical Application ◽  
Methyl Proton ◽  
Proton Chemical Shifts

The fluorine and proton chemical shifts in some geminally disubstituted vinylidene fluorides and ethylenes are discussed. For these compounds, at least, there are difficulties with an interpretation based on intramolecular time-dependent electric fields. On the other hand, the shifts correlate with the inverse ionization potentials of the substituents, indicating a paramagnetic effect arising from the second term in Ramsey's expression. It is suggested that the effect operates via the bonds and not across space. Methyl proton shifts in a series of substituted methyl compounds of group IV, V, and VI elements show similar correlations. A practical application of the correlation to spectral analysis problems is given.

Determination of the Internal Electric Field in the Electrooptic Active Layer of Multilayer Polymer Stacks

1997 ◽  
Vol 488 ◽  
Author(s):  
S. Grossmann ◽  
T. Weyrauch ◽  
W. Haase
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
Time Dependent ◽  
Polymer Interfaces ◽  
Internal Electric Field ◽  
Inhomogeneous Distribution ◽  
Time Dependent Behaviour ◽  
Dependent Behaviour

AbstractWe report on a method to investigate the inhomogeneous distribution of an electric dc field in multilayer polymer stacks. In situ electroabsorption (EA) measurements are applied in order to estimate the local electric fields in double layer polymer films. The observed time dependent behaviour is compared with a model equivalent circuit. The results indicate that besides the relation of ohmic resistivities and capacities of the different polymer layers in the investigated systems also the influence of the electric properties of polymer/electrode and polymer/polymer interfaces must be considered.

scholarly journals Exactly solvable time-dependent pseudo-Hermitian su(1,1) Hamiltonian models

2018 ◽  
Vol 98 (3) ◽  
Author(s):  
R. Grimaudo ◽  
A. S. M. de Castro ◽  
M. Kuś ◽  
A. Messina
Keyword(s):  
Time Dependent ◽  
Hamiltonian Models ◽  
Exactly Solvable

On multidimensional inverse scattering in time-dependent electric fields

2013 ◽  
Vol 29 (8) ◽  
pp. 085012 ◽  
Author(s):  
Tadayoshi Adachi ◽  
Yuko Fujiwara ◽  
Atsuhide Ishida
Keyword(s):  
Electric Fields ◽  
Inverse Scattering ◽  
Time Dependent
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