We conduct a theoretical study on the properties of a bound polaron in a quantum well under an electric field using linear combination operator and unitary transformation methods, which are valid in the whole range of electron-LO phonon coupling.
In other words, The Hermiticity of a matrix is invariant under unitary transformations.
The properties of strong coupling magnetoploron in the semiconductor quantum dot are investigated by the linear combination operator and unitary transformation methods.
unitary transformation group
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