All Questions
Tagged with reflection quantum-mechanics
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$\pi$ phase shift upon reflection in quantum wells
Is there a similar phenomenon to the $\pi$ phase shift experienced by light upon reflection from a medium of lower to higher refracted index for particles in different potentials?
For instance, does a ...
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Are reflection and transmission coefficients in 1D problem are independent of the direction in which we choose as incident?
I was watching a lecture series of Quantum mechanics of Professor V. Balakrishnan,
There was a problem session,
“For an arbitrary potential barrier (any potential function of position and it need not ...
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Free particle encountering an infinite potential barrier
I understand that a wave function cannot penetrate through a barrier that has infinite potential. However when the wave function reflects off from the barrier what does this look like? If we're in a ...
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Doubleslit (single slit and a mirror)
Imagine a setup similar to a doubleslit but it has only 1 slit and the other slit is just a reflection on a mirror. Will I still get interference pattern despite only 1 real slit?
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Mirror momentum in a Mach-Zehnder interferometer
As I understand it, the mirrors in a MZI should gain momentum from the reflected photons. How much momentum should the mirrors get for a single photon? In a simple photon-mirror incident at $\pi/4$ ...
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Reflections from both edges of a finite well
In section 11.3.1 in Richard Robinnett's Quantum Mechanics book, it says that in the case of transmission resonance ($T=1$), there's complete destructive interference between waves reflected from the ...
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Why the spatial inversion operation $P$ in two space dimensions is $(x, y)→(−x, y)$, whereas in three space dimensions it is $(x, y, z)→(−x,−y,−z)$?
The parity operation in quantum mechanics and quantum field theory is $\hat P|\vec r\rangle=|-\vec r\rangle$, which we can check from the Fourier transform.
Why the spatial inversion operation $P$ in ...
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How do we calculate the probability of each path a photon would take to reach from point A to B?
I was reading about how reflection and refraction work at a quantum scale. What I understood was that the photon "can" take multiple paths to reach the end point and when we consider all ...
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Why white body cannot emit photons (quantum level)?
As far as I've found white body by definition reflects 100% of electromagnetic radiation (EMR). According to thermal equilibrium as I've read it (but not been able to fully agree with the proof - so ...
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How does photon reflection work quantum mechanically? [duplicate]
When a single photon strikes a mirror, it is reflected back such that the incident angle= the reflected angle. When the photon interacts with the surface lattice of the mirror, what exactly is ...
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Specular Light Reflection and Quantum Mechanics [duplicate]
How is specular light reflection from, for example a metallic surface, modeled by quantum mechanics?
For transmission and absorption of radiation, I understand how the wave functions of the band ...
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Beam splitter that splits two incoming beams differently
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Is there any way to build a beam splitter that will split two incoming beams differently?
Say, beam coming from the left (x axes) will transfer 70% and reflect 30% while beam coming from ...
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Why do we suppose that reflected quantum state has the same energy that initial state?
I just read in my lecture notes that the teacher assumed the wave vector $k_+$ of reflected (from potential) state the same (but inverted) as wave vector of initial psi function (that goes to the ...
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Question about hard well potential in quantum mechanics
How we can treat the potential that is infinity on one side and zero for other side
$$V(x)=\begin{cases}0~~~~~~~~~x>0\\ +\infty~~~~~ x<0 \end{cases}$$
I think we must apply the one boundary ...
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Reflection of light on a colorless material. What happens on atomic level?
I try to understand reflection explained with photons that are interacting with molecules on atomic level.
For this I would like to start with an example and ask the question based on this:
Say I have ...
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