Note on the Back Reaction Term in Ferromagnetic Relaxation Equations

1961 ◽  
Vol 32 (4) ◽  
pp. 738-738 ◽  
Author(s):  
Herbert Callen
Keyword(s):  
Back Reaction ◽  
Reaction Term ◽  
Ferromagnetic Relaxation

scholarly journals Derivation of the Landau–Pekar Equations in a Many-Body Mean-Field Limit

2021 ◽  
Vol 240 (1) ◽  
pp. 383-417
Author(s):  
Nikolai Leopold ◽  
David Mitrouskas ◽  
Robert Seiringer
Keyword(s):  
Mean Field ◽  
Einstein Condensate ◽  
Back Reaction ◽  
Many Body ◽  
Field Limit ◽  
Mean Field Limit ◽  
Phonon Field ◽  
Bose Einstein Condensate ◽  
Weakly Couple ◽  
Bose Einstein

AbstractWe consider the Fröhlich Hamiltonian in a mean-field limit where many bosonic particles weakly couple to the quantized phonon field. For large particle numbers and a suitably small coupling, we show that the dynamics of the system is approximately described by the Landau–Pekar equations. These describe a Bose–Einstein condensate interacting with a classical polarization field, whose dynamics is effected by the condensate, i.e., the back-reaction of the phonons that are created by the particles during the time evolution is of leading order.

scholarly journals Estimates of solutions of elliptic equations with a source reaction term involving the product of the function and its gradient

2019 ◽  
Vol 168 (8) ◽  
pp. 1487-1537 ◽  
Author(s):  
Marie-Françoise Bidaut-Véron ◽  
Marta García-Huidobro ◽  
Laurent Véron
Keyword(s):  
Elliptic Equations ◽  
Reaction Term ◽  
Estimates Of Solutions

scholarly journals Gauge field back reaction on a black hole

1993 ◽  
Vol 47 (4) ◽  
pp. 1465-1470 ◽  
Author(s):  
David Hochberg ◽  
Thomas W. Kephart
Keyword(s):  
Black Hole ◽  
Gauge Field ◽  
Back Reaction

scholarly journals On back-reaction in special relativity

2013 ◽  
Vol 81 (7) ◽  
pp. 492-497 ◽  
Author(s):  
William M. Nelson
Keyword(s):  
Special Relativity ◽  
Back Reaction

Periodic Problems with the Scalar p-Laplacian Resonant at any Eigenvalue via Critical Point Methods

2013 ◽  
Vol 13 (3) ◽  
Author(s):  
Sophia Th. Kyritsi ◽  
Donal O’ Regan ◽  
Nikolaos S. Papageorgiou
Keyword(s):  
Critical Point ◽  
Morse Theory ◽  
Critical Point Theory ◽  
Smooth Solution ◽  
Point Theory ◽  
Reaction Term ◽  
Variational Techniques ◽  
Periodic Problems

AbstractWe consider nonlinear periodic problems driven by the scalar p-Laplacian with a Carathéodory reaction term. Under conditions which permit resonance at infinity with respect to any eigenvalue, we show that the problem has a nontrivial smooth solution. Our approach combines variational techniques based on critical point theory with Morse theory.

scholarly journals ON VACUUM-ENERGY DECAY FROM PARTICLE PRODUCTION

2012 ◽  
Vol 27 (25) ◽  
pp. 1250150 ◽  
Author(s):  
F. R. KLINKHAMER
Keyword(s):  
Vacuum Energy ◽  
Particle Production ◽  
Energy Decay ◽  
Back Reaction ◽  
De Sitter Spacetime ◽  
De Sitter ◽  
Consistent Description ◽  
Sitter Spacetime

A simplified (but consistent) description of particle-production back-reaction effects in de Sitter spacetime is given.

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