Length of time interval for an atom in excited state to drop to lower energy level
9370
How long does it take for an excited electron to return to ground state?
86156
Do photons have a duration?
55226
Expectation of Exit Time of Brownian Motion from Interval
54174
Conversion of mass to energy in chemical/nuclear reactions
58960
Time dependent Schrödinger equation with time independent potential and separation of variables
88660
Time derivative in Schrödinger equation
21186
Why is the second order perturbative correction to the ground state energy always down?
64508
Where exactly does energy quantisation come in for light?
38482
What is $\Delta t$ in the time-energy uncertainty principle?
139741
Better method to measure the time period of a pendulum
49617
How does a Wavefunction collapse?
8760
Is the harmonic oscillator potential unique in having equally spaced discrete energy levels?
82418
Why not drop $\hbar\omega/2$ from the quantum harmonic oscillator energy?
30152
Derivation of time-dependent Schrödinger equation from De Broglie hypothesis
133259
Loss in energy by light after reflections
140005
How will a particle with energy less than $V_{\rm min}$ behave?
84971
Photoelectric effect, low frequency light