most citedRandom phase approximation and its extension for the quantum O(2) anharmonic oscillator

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hep-ph2003★ 1 cited

Random phase approximation and its extension for the quantum O(2) anharmonic oscillator

Zoheir Aouissat, Cecile Martin

We apply the random phase approximation (RPA) and its extension called renormalized RPA to the quantum anharmonic oscillator with an O(2) symmetry. We first obtain the equation for…