Question

Is the variational technique of quantum mechanics restricted to the energy?

Answer 1

yes there can be a variational technique of quantum mechanics restricted to energy because energy was being converted into many sources which varies with each other

Answer 2

In quantum mechanics, the variational method is one way of finding approximations to the lowest energyeigenstate or ground state, and some excited states. This allows calculating approximate wavefunctions such as molecular orbitals. The basis for thismethod is the variational principle.


So this is possible