Study of Packet Traffic Fluctuations Near Phase Transition Point from Free Flow to Congestion in Data Network Model

2007 ◽  
Author(s):  
Anna T. Lawniczak ◽  
Pietro P. Lio ◽  
Shengkun Xie ◽  
Jiaying Xu
Keyword(s):  
Phase Transition ◽  
Network Model ◽  
Transition Point ◽  
Phase Transition Point ◽  
Free Flow ◽  
Data Network

scholarly journals Распространение поверхностной магнитоупругой волны в ферромагнетике в области ориентационного фазового перехода

2020 ◽  
Vol 62 (6) ◽  
pp. 851
Author(s):  
И.В. Мальцев ◽  
И.В. Бычков ◽  
Д.А. Кузьмин ◽  
В.Г. Шавров
Keyword(s):  
Phase Transition ◽  
Group Velocity ◽  
Yttrium Iron Garnet ◽  
Transition Point ◽  
Phase Transition Point ◽  
Yttrium Iron ◽  
Orientational Phase Transition ◽  
Velocity Changes ◽  
Iron Garnet ◽  
Magnetoelastic Surface

In this paper, we have studied the dependencies of group velocity and damping of magnetoelastic surface waves on the frequency at various external magnetic fields and propagation angles. The group velocity spikes occur at frequencies at which the damping peaks of the surface wave are detected. The behavior of a surface magnetoelastic wave in the vicinity of the orientational phase transition was also investigated. At the phase transition point, the group velocity changes by 1%. Dependences of the damping along the surface at various propagation angles point out on the nonreciprocal nature of the wave. All dependencies in this work were obtained using computer modeling. The parameters of the ferromagnet are taken typical for yttrium-iron garnet.

Dielectric lossbs near the phase transition point in DTGSel crystal

1989 ◽  
Vol 10 (6) ◽  
pp. 167-172
Author(s):  
S. A. Gridnev ◽  
B. N. Prasolov ◽  
O. V. Dybova
Keyword(s):  
Phase Transition ◽  
Transition Point ◽  
Phase Transition Point

scholarly journals The Entanglement Generation in P T -Symmetric Optical Quadrimer System

Symmetry ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1110 ◽  
Author(s):  
Joanna K. Kalaga
Keyword(s):  
Phase Transition ◽  
Transition Point ◽  
Single Mode ◽  
Phase Transition Point ◽  
Bipartite Entanglement ◽  
Entanglement Generation ◽  
Linear Interaction ◽  
Gain And Loss ◽  
A Chain

We discuss a model consisting of four single-mode cavities with gain and loss energy in the first and last modes. The cavities are coupled to each other by linear interaction and form a chain. Such a system is described by a non-Hermitian Hamiltonian which, under some conditions, becomes P T -symmetric. We identify the phase-transition point and study the possibility of generation bipartite entanglement (entanglement between all pairs of cavities) in the system.

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