All Questions
7
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Modelling incoherent sources
Suppose some (coherent) light propagates onto a one-dimensional barrier with two open slits, each of length $\delta$ and separated by a distance $s$ (we can assume the centroid is known and placed at $...
- 21
1
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0
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65
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Coherence, Correlation and causality in Quantum Field Theory
I've started to study in details quantum optics and I find difficulties in linking the concepts of coherence and correlation among fields, especially because I'm building right now a background on ...
- 11
1
vote
2
answers
88
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Gaining Quantum information without destroying the coherence
I've read about new optical interference among several telescopes all around the globe. It is supposed to work by combining the quantum states of a photon A arriving at once in every telescope of the ...
- 84
6
votes
2
answers
497
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Optical coherence versus quantum coherence
Optical coherence is usually defined to be the measure of statistical correlation (for example if the phase difference is constant) of a pair of waves.
Recently I came across the notion of quantum ...
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1
vote
1
answer
121
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State emitting from an extended thermal source
This calculation is for a double slit experiment setup which is experiencing a far field radiation from an extended monochromatic thermal source. I assume the source is 1-D and it's length is $b$. ...
- 422
2
votes
1
answer
612
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Physical significance of effective wave function
In Yanhua Shih's book on quantum optics, the coherence functions are expressed in terms of effective wave function. Here are the expressions for single photon wave packets.
To derive the coherence ...
- 422
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1
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204
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Photon detection rate for pure / mixed states coming from single mode point source
Let the pure states be in superposition of horizontal and vertically polarized basis states. They are arriving at the point detector one at a time. So, a pure state is $|\Psi\rangle = \alpha|V\rangle ...
- 422