PHASE TRANSITIONS IN A SPIN POLARIZED FLUID : THERMAL EQUILIBRIUM AND KINETIC PHENOMENA

1980 ◽  
Vol 41 (C7) ◽  
pp. C2-299-C2-299 ◽  
Author(s):  
P. Nozières
Keyword(s):  
Phase Transitions ◽  
Thermal Equilibrium ◽  
Spin Polarized

scholarly journals Interfacial mechanisms in active emulsions

Soft Matter ◽  
2014 ◽  
Vol 10 (36) ◽  
pp. 7008-7022 ◽  
Author(s):  
Stephan Herminghaus ◽  
Corinna C. Maass ◽  
Carsten Krüger ◽  
Shashi Thutupalli ◽  
Lucas Goehring ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Pattern Formation ◽  
Thermal Equilibrium ◽  
Collective Phenomena

Active emulsions, i.e., emulsions whose droplets perform self-propelled motion, are of tremendous interest for mimicking collective phenomena in biological populations such as phytoplankton and bacterial colonies, but also for experimentally studying rheology, pattern formation, and phase transitions in systems far from thermal equilibrium.

scholarly journals PHASE TRANSITIONS IN PARTIALLY SPIN-POLARIZED 3He

1987 ◽  
Vol 48 (C2) ◽  
pp. C2-101-C2-106
Author(s):  
M. BARRANCO ◽  
A. POLLS ◽  
S. STRINGARI ◽  
P. J. NACHER ◽  
F. LALOË
Keyword(s):  
Phase Transitions ◽  
Spin Polarized

Local Excitation as Transport Phase Transition in Phonon Systems

1977 ◽  
Vol 32 (7) ◽  
pp. 697-703
Author(s):  
Fr. Kaiser
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Steady State ◽  
Transport Equation ◽  
Thermal Equilibrium ◽  
Boltzmann Transport Equation ◽  
Boltzmann Transport ◽  
Local Excitation ◽  
Steady State Solutions ◽  
Transport Phase

Abstract The Peierls-Boltzmann transport equation for phonons, which was re-formulated and modified in a previous paper, is extended to be applicable to arbitrary interactions and phonon processes. As a rule, it turns out that only two types of steady state solutions are possible: hysteresis and threshold. These two solutions reveal the possibility of “transport phase transitions”, i. e. a transition from the “thermodynamic” branch to a “nonthermodynamic” one via a cumulative excitation. It is shown that both the threshold and the hysteresis situation exhibit pronounced analogies to phase transi­tions in thermal equilibrium. The dependence of the steady states from the relevant parameters is discussed.

Structural Investigation of the Photoinduced Spin Transition in the [Fe(PM-BiA)2(NCS)2] Compound

2006 ◽  
Vol 112 ◽  
pp. 81-88 ◽  
Author(s):  
Kouhei Ichiyanagi ◽  
Johan Hebert ◽  
Loic Toupet ◽  
Hérve Cailleau ◽  
Eric Collet ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Low Temperature ◽  
High Spin ◽  
Thermal Equilibrium ◽  
Molecular Crystal ◽  
Structural Investigation ◽  
Spin Transition ◽  
X Ray Diffraction ◽  
Structural Reorganization ◽  
X Ray

We investigated the thermo- and photo-induced phase transitions between low spin (LS) and high spin (HS) states of the molecular crystal of [Fe(PM-BiA)2(NCS)2] in the orthorhombic form, by using X-ray diffraction. The structure of the photoinduced HS state, generated from the LS state at low temperature, is compared to the structures of the HS and LS phases at thermal equilibrium and to the thermally trapped HS state. The preliminary results presented here show that the structural reorganization is similar in the different HS states.

scholarly journals On the mechanism of photoinduced phase transitions in ternary liquid crystal systems near thermal equilibrium

2008 ◽  
Vol 129 (2) ◽  
pp. 024502 ◽  
Author(s):  
Wilson Quevedo ◽  
Marcel Petri ◽  
Gerhard Busse ◽  
Simone Techert
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Thermal Equilibrium

Baryogenesis

2018 ◽  
Author(s):  
Michael Kachelriess
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Boltzmann Equation ◽  
Thermal Equilibrium ◽  
Baryon Asymmetry ◽  
Electroweak Phase Transition ◽  
First Order ◽  
The Boltzmann Equation ◽  
First Order Phase ◽  
Particle Decays

This chapter shows that a baryon asymmetry can be generated only if the Sakharov conditions are satisfied. The required departure from thermal equilibrium can be realised either in first-order phase transitions or in out-of-equilibrium decays. Sphaleron transitions as a possible way to transfer a lepton into a baryon asymmetry are covered and the Boltzmann equation governing the baryon asymmetry generated in particle decays is derived. A brief review of baryogenesis during the electroweak phase transition is presented.

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