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## Main Question or Discussion Point

Hello everybody, I have few queries in Quantum.Can anybody tell me:-

1.) Ladder operators are very well defined as L+/- = LX (+/-) iLY.

But what is its significance and from where it found its origination.

2.) Condition for any operator being HERMITIAN, plz don’t give mathematical response of this i.e. adjoint(operator) = operator, i know that. Please tell me in sense of physically , by giving example if possible.

With regards

1.) Ladder operators are very well defined as L+/- = LX (+/-) iLY.

But what is its significance and from where it found its origination.

2.) Condition for any operator being HERMITIAN, plz don’t give mathematical response of this i.e. adjoint(operator) = operator, i know that. Please tell me in sense of physically , by giving example if possible.

With regards