New posts in Hamiltonian

What is a "picture" in quantum mechanics?

Inonu-Wigner Group Contraction

Why do excited states decay if they are eigenstates of Hamiltonian and should not change in time?

Does the Hilbert space include states that are not solutions of the Hamiltonian?

Is it possible to reconstruct the Hamiltonian from knowledge of its ground state wave function?

Increasing a potential causes increase in energy levels

What is $\langle \phi | H | \psi \rangle$ in QM?

Why do we need both Hamiltonian and Hilbert Space to specify a Quantum System?

Where does the $i$ come from in the Schrödinger equation?

Why does time evolution operator have the form $U(t) = e^{-itH}$?