. . "Hamiltonians" . "Hamiltonian operators" . . "spectrum of the Hamiltonian" . . . "Hamiltonian" . . . "Hamiltonian operator" . "evolution operator" . "Time evolution operator" . "Hamiltonian (quantum mechanics)" . "quantum Hamiltonian operator" . . "time evolution operator" . . . "Hamiltonian matrix" . . . "quantum Hamiltonian" . . "Hamiltonian Quantum Mechanics" . "Magnetic Hamiltonians" . . . "energy spectrum" . "energy operator" . . . . "energy eigenvalue" . . "Hamiltonian (quantum mechanics)" . . "operator" . . "hamiltonian" . . . . "quantum-mechanical Hamiltonian" . "degeneracy" . . "Hamiltonian_(quantum_mechanics)" .