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quant-ph2002
Quantum fluctations of coherent light in nonlinear media
Anirban Pathak
The interaction of coherent light with a nonlinear medium is modeled here by a general quantum anharmonic oscillator. The model is not exactly solvable in a closed analytical form.…
quant-ph2002
Aharanov Anandan Phase for the Quasi Exactly Solvable Bose Systems
Anirban Pathak
An extended notion of quasi-exactly solvable potential model is used here to treat quasi exactly solvable (QES) Bose systems. We report an analytic expression for the Ahoronov Anan…
math-ph2002
Generalised quantum anharmonic oscillator using an operator ordering approach
Anirban Pathak
We construct a generalised expression for the normal ordering of (a+a^{\dagger})^{m} for integral values of m and use the result to study the quantum anharmonic oscillator problem…