Bad Qubits — Learn Quantum by Doing

Multiple choice

The time-dependent Schrodinger equation can be written compactly as i*hbar * d(Psi)/dt = H-hat * Psi. Because the equation is FIRST-order in time, what does this imply about the evolution of the wavefunction?

The wavefunction cannot evolve in time at all because the equation has an imaginary unit i
Two initial conditions (Psi and its time derivative) are needed to determine the future, as in Newton's law
Psi at a later time is completely undetermined by Psi now; quantum evolution is fundamentally random
Specifying Psi at one moment completely determines Psi at all later (and earlier) times; evolution of Psi is deterministic