| 1. | The virtual state argument is quite orthogonal to the anharmonic oscillator argument.
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| 2. | The best known example is the sextic QES anharmonic oscillator with the Hamiltonian
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| 3. | Alternatively, the material may react in an anharmonic fashion to the fields.
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| 4. | The two most important anharmonic effects are the thermal expansion and the phonon thermal conductivity.
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| 5. | The anharmonic group is generated by and.
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| 6. | This behavior is an extension of the harmonic potential, mentioned earlier, into the anharmonic regime.
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| 7. | Anharmonic oscillators, however, are characterized by the nonlinear dependence of the restorative force on the displacement x.
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| 8. | For this reason, anharmonic motion can be approximated as harmonic motion as long as the oscillations are small.
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| 9. | This group is called the anharmonic group . talk ) 12 : 18, 15 September 2014 ( UTC)
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| 10. | The method proved too difficult to immediately apply to realistic problems, so Heisenberg turned to a simpler example, the anharmonic oscillator.
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