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This Demonstration plots the Wigner function corresponding to a canonical ensemble of harmonic oscillators at temperature

. Even though excited states of the harmonic oscillator are oscillatory, their mutual interference at finite temperatures leads to a smooth positive Wigner function.

Contributed by: Samira Bahrami

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Simple Harmonic Oscillator—Quantum Mechanical (ScienceWorld)

"Wigner Function of a Canonical Ensemble of Harmonic Oscillators at a Given Temperature" from the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/WignerFunctionOfACanonicalEnsembleOfHarmonicOscillatorsAtAGi/

Contributed by: Samira Bahrami

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Wigner Function of a Canonical Ensemble of Harmonic Oscillators at a Given Temperature

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