Torque, spin and energy currents in chiral magnets (Conference Presentation)

2016 ◽  
Author(s):  
Alexey Kovalev
Keyword(s):  
Energy Currents

Supradegeneracy and the Second Law of Thermodynamics

2020 ◽  
Vol 45 (2) ◽  
pp. 121-132
Author(s):  
Daniel P. Sheehan
Keyword(s):  
Steady State ◽  
Statistical Mechanics ◽  
Population Inversion ◽  
Laboratory Experiments ◽  
Second Law Of Thermodynamics ◽  
Second Law ◽  
Boltzmann Factor ◽  
Energy Currents ◽  
Non Equilibrium

AbstractCanonical statistical mechanics hinges on two quantities, i. e., state degeneracy and the Boltzmann factor, the latter of which usually dominates thermodynamic behaviors. A recently identified phenomenon (supradegeneracy) reverses this order of dominance and predicts effects for equilibrium that are normally associated with non-equilibrium, including population inversion and steady-state particle and energy currents. This study examines two thermodynamic paradoxes that arise from supradegeneracy and proposes laboratory experiments by which they might be resolved.

Partition asymptotics from one-dimensional quantum entropy and energy currents

2001 ◽  
Vol 42 (12) ◽  
pp. 5713-5717 ◽  
Author(s):  
Miles P. Blencowe ◽  
Nicholas C. Koshnick
Keyword(s):  
Quantum Entropy ◽  
One Dimensional ◽  
Energy Currents

High-energy currents and nuclei

1968 ◽  
Vol 57 (4) ◽  
pp. 830-836
Author(s):  
G. Faucher
Keyword(s):  
High Energy ◽  
Energy Currents

scholarly journals WELL-POSEDNESS FOR THE EULER–NORDSTRÖM SYSTEM WITH COSMOLOGICAL CONSTANT

2009 ◽  
Vol 06 (02) ◽  
pp. 313-358 ◽  
Author(s):  
JARED SPECK
Keyword(s):  
Cosmological Constant ◽  
Hyperbolic Systems ◽  
Compact Perturbation ◽  
Initial Value ◽  
Scalar Theory ◽  
Energy Principle ◽  
First Order ◽  
Energy Currents ◽  
Standard Energy ◽  
Well Posed

In this paper, the author considers the motion of a relativistic perfect fluid with self-interaction mediated by Nordström's scalar theory of gravity. The evolution of the fluid is determined by a quasilinear hyperbolic system of PDEs, and a cosmological constant is introduced in order to ensure the existence of nonzero constant solutions. Accordingly, the initial value problem for a compact perturbation of an infinitely extended quiet fluid is studied. Although the system is neither symmetric hyperbolic nor strictly hyperbolic, Christodoulou's constructive results on the existence of energy currents for equations derivable from a Lagrangian can be adapted to provide energy currents that can be used in place of the standard energy principle available for first-order symmetric hyperbolic systems. After providing such energy currents, the author uses them to prove that the Euler–Nordström system with a cosmological constant is well-posed in a suitable Sobolev space.

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