Controllable PT phase transition and asymmetric soliton scattering in atomic gases with linear and nonlinear potentials

2019 ◽  
Vol 99 (4) ◽  
Author(s):  
Lu Qin ◽  
Chao Hang ◽  
Guoxiang Huang
Keyword(s):  
Phase Transition ◽  
Atomic Gases ◽  
Nonlinear Potentials ◽  
Linear And Nonlinear

Two dimension PT symmetry spacial soliton in atomic gases with linear and nonlinear potentials

Optik ◽  
2020 ◽  
Vol 213 ◽  
pp. 164705
Author(s):  
He-Xi Liang ◽  
Yong-Hong Dai ◽  
Sheng-Jie Shu ◽  
Si-Liu Xu ◽  
Kang-Sai Wang ◽  
...  
Keyword(s):  
Pt Symmetry ◽  
Atomic Gases ◽  
Two Dimension ◽  
Nonlinear Potentials ◽  
Linear And Nonlinear

PRELIMINARY OPTICAL STUDY ON ER FLUIDS

1994 ◽  
Vol 08 (20n21) ◽  
pp. 2921-2933 ◽  
Author(s):  
L. W. ZHOU ◽  
J. F. YE ◽  
R. B. TAO ◽  
Y. TANG ◽  
J. F. PENG ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Electric Fields ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Response ◽  
Optical Study ◽  
Solid States ◽  
Linear And Nonlinear ◽  
Er Fluids

Linear and nonlinear optical study on electrorheological (ER) fluids is reported. The ER fluids under the investigation were glass beads, zeolite and ferroelectrics. The linear optical response of some ER fluids showed sharp changes near critical electric fields. An enhancement of electric field induced second harmonic generations (EFISH) was observed as the function of E2, where E is the external electric field. The said enhancement is considered to be corresponding to a modulation of the material's refractive index associated with the electric field induced polarization of the delocalized electrons. The enhanced nonlinear optical response on the transition between liquid and solid states can be related to the phase transition in ER fluids.

Linear and nonlinear light scattering near the phase transition inKH2PO4

1994 ◽  
Vol 49 (5) ◽  
pp. 3082-3088 ◽  
Author(s):  
I. Drevenšek ◽  
M. Zgonik ◽  
M. Čopič ◽  
R. Blinc ◽  
A. Fuith ◽  
...  
Keyword(s):  
Phase Transition ◽  
Light Scattering ◽  
Linear And Nonlinear ◽  
Nonlinear Light Scattering

scholarly journals Vector Spatiotemporal Solitons in cold atomic gases with linear and nonlinear PT symmetric potentials

2021 ◽  
Author(s):  
Gan-Ming Li ◽  
Ao Li ◽  
Shengjie Shu ◽  
Yuan Zhao ◽  
Guo-Peng Zhou ◽  
...  
Keyword(s):  
Atomic Gases ◽  
Linear And Nonlinear ◽  
Cold Atomic Gases

Effect of confined geometry on linear and nonlinear dielectric properties of triglycine sulfate near the phase transition

2011 ◽  
Vol 53 (6) ◽  
pp. 1212-1215 ◽  
Author(s):  
S. V. Baryshnikov ◽  
E. V. Charnaya ◽  
Yu. A. Shatskaya ◽  
A. Yu. Milinskiy ◽  
M. I. Samoilovich ◽  
...  
Keyword(s):  
Phase Transition ◽  
Dielectric Properties ◽  
Triglycine Sulfate ◽  
Confined Geometry ◽  
Nonlinear Dielectric ◽  
Linear And Nonlinear

scholarly journals Gradient estimates via linear and nonlinear potentials

2010 ◽  
Vol 259 (11) ◽  
pp. 2961-2998 ◽  
Author(s):  
Frank Duzaar ◽  
Giuseppe Mingione
Keyword(s):  
Gradient Estimates ◽  
Nonlinear Potentials ◽  
Linear And Nonlinear

scholarly journals Сдвиговые упругие свойства ВТСП керамики в области перехода в сверхпроводящую фазу

2020 ◽  
Vol 90 (6) ◽  
pp. 954
Author(s):  
А.И. Коробов ◽  
А.И. Кокшайский ◽  
Н.В. Ширгина ◽  
Н.И. Одина ◽  
А.А. Агафонов ◽  
...  
Keyword(s):  
Phase Transition ◽  
Elastic Properties ◽  
Room Temperature ◽  
Experimental Studies ◽  
Acoustic Parameter ◽  
Superconducting Transition ◽  
Electronic Phase ◽  
Nonlinear Acoustic Parameter ◽  
Linear And Nonlinear ◽  
Nonlinear Elastic

The results of studies of shear elastic properties of a high-temperature superconducting (HTSC) of YBa2Cu3O7 - x ceramics in the vicinity of the phase transition to the superconducting state at at a temperature of 91.3 K, as well as at room temperature of 293 K are presented. For the first time, a local increase in the shear nonlinear acoustic parameter N was investigated. Experimental studies of the linear and nonlinear elastic properties of HTSC ceramics YBa2Cu3O7 - x in the region of the superconducting transition showed that the electronic phase transition has significant influence on its elastic properties. Based on the results of experimental measurements linear and nonlinear elastic parameters were determined both at room temperature and in the region phase transition temperature.

scholarly journals Solitary matter waves in combined linear and nonlinear potentials: Detection, stability, and dynamics

2013 ◽  
Vol 88 (3) ◽  
Author(s):  
Scott Holmes ◽  
Mason A. Porter ◽  
Peter Krüger ◽  
Panayotis G. Kevrekidis
Keyword(s):  
Matter Waves ◽  
Nonlinear Potentials ◽  
Linear And Nonlinear

scholarly journals Dynamics of a Nonlinear Diatomic Chain

1983 ◽  
Vol 36 (3) ◽  
pp. 339 ◽  
Author(s):  
BI Henry ◽  
J Oitmaa
Keyword(s):  
Equations Of Motion ◽  
Structural Phase ◽  
Field Equations ◽  
Nonlinear Modes ◽  
Discrete Equations ◽  
Diatomic Chain ◽  
Nonlinear Potentials ◽  
Continuum Description ◽  
Linear And Nonlinear ◽  
The Continuum

We examine nonlinear lattice excitations in a model for a solid which may undergo a displacive structural phase transition. In particular, we investigate the field equations for a diatomic chain of atoms including nonlinear potentials on one species. We identify three classes of excitations in this model. These are linearized phonons, large amplitude solitary waves, and nonlinear phonons. Interactions between the linear phonons and the nonlinear modes give rise to a translation mode which is a further solution of the field equations. The linear and nonlinear phonons are also direct solutions of the discrete equations of motion. However, using the molecular dynamics technique we find that kink-type configurations occur for a much larger parameter space in the discrete lattice than they do in the continuum description. All the stable excitations of the field equations should be included in a formal description (e.g. statistical mechanics) of the model.

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