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Dynamics of systems with isotropic competing interactions in an external field: a Langevin approach
Dynamics of systems isotropic competing interactions external field: a Langevin approach
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2010/11/25
We study the Langevin dynamics of a ferromagnetic Ginzburg-Landau Hamiltonian with a competing longrange repulsive term in the presence of an external magnetic field. The model is analytically solved ...
Path Integral Evaluation of a Time-Dependent Oscillator in an External Field
Path Integral Propagator Green functions and harmonic oscillator
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2010/4/8
The Lagrangian of a system describing the dynamical behaviour of a time-dependent harmonic oscillator is modified and then used to evaluate the Feynman path integral of the oscillator. The path integr...
Magnetic Properties of Heisenberg Thin Films in an
External Field
thin film
Heisenberg ferromagnet variational-cumulant expansion
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2007/8/15
2004Vol.42No.5pp.768-772DOI:
Magnetic Properties of Heisenberg Thin Films in an
External Field
CHEN Hong and ZHANG Jing
School of Physics, Southwest China Normal Univer...