A research field within general optical physics concerned with light and its material interaction: where light is modelled by full quantum mechanical description.
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What is the “direction” of the transition dipole moment? (Understanding Eq. 9.29, Charge and Energy Transfer 3rd Ed, May & Kuhn)
For a real vector $\mathbf{r}$, the direction is given by: $\hat{\mathbf{n}}=\mathbf{r}/\left|\mathbf{r}\right|$.
The transition dipole moment is a complex vector. How do you define its direction?
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Relationship between photon polarization and photon angular momentum
What direction is the angular momentum of right hand polarized light points to? Is it vertical to its propagating direction? I want to recognize this in quantum theory.
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double slit experiment with two opposite quarter waveplates
Consider the usual double slit experiment involving laser and a double slit and a screen. Now place in front of the left slit a quarter waveplate (let's call it QWP1) that changes a certain linear ...
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First order coherence through double slit
The state $$|\Psi \rangle = |0\rangle + \sum_j \int d\omega f_j(\omega)\hat{a}^\dagger_j (\omega) |0\rangle $$ is coming from a far field and incident on a double slit setup. Here j is the index of ...
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Stark effect in two level atomic system
In a two level atomic system ( rabi oscillating problem) the perturbative potential is oscillating / sinusoidal because it comes from the electric field from the laser.
Now stark effect is the ...
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How to estimate number of Laue Spot
Why are "Laue Spots" spots instead of rings? Or is there an effective way to estimate the number of Laue spots? I can't find any formulas or theory concerning this issue. Thanks for your attention!
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Dyson Series Second Order Term Importance vs. Time
Given a time ordered Dyson series expansion of
$$H_I=e^{-\frac{i}{\hbar}\sigma_3t}V_0\sin(\omega t)\sigma_1e^{\frac{i}{\hbar}\sigma_3t}$$
$${\cal ...
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uncertainty deviations for vacuum astronomy
Since i've done this question, i've been trying to improve and make more precise the statements regarding cosmic squeezed states and how different uncertainties affect the vacuum energy, but as it ...
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back-action noise
I recently have come across with two key-concepts: shot noise and back-action noise in quantum optics. This is very important for me to know: first, are shot noise and back-action the same? Please let ...
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What is three-photon interference?
Whilst reading this paper on a quantum processor that performs a type of matrix computation, I came across the concept of 'three-photon interference'. A quick Google search shows that this process is ...
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Do Bell inequality violations appear instantly when the source is turned on, or do they increase over time?
This experimental Question is a result of reading a particular article on Bell violations. I addressed the e-mail below to the corresponding authors —because who knows, they might reply— but it is not ...
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Why is low temperature required for optical lattice systems to enter magnetic regime?
"Optical lattice requires a very low temperature scale to enter magnetism regime."
Why is that?
What I know:
optical lattice systems suppress kinetic energy (hopping parameter: $t$ small);
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How to calculate radiative transition rate of exciton in a quantum dot with specific dimension?
I am writing rate equations for a nanophotonic system including three quantum dots. I need to calculate that radiative transition rates of exciton in ground state in those quantum dots.
In the paper ...
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fiber optic second order PMD as an operator on the tensor product Hilbert space
Second order polarization mode dispersion (SOPMD) is a coupling mechanism between polarization and frequency. Take our photon to be the following tensor product:
$\psi = \int \gamma_{\omega} | ...
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What characterizations are available for two-photon Bell state light sources?
It is often technologically important to know how photon statistics change over time when a light source is turned on. A light source that comes to full intensity/visibility in a nanosecond after it ...
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Are virtual photons affected by effective gravity in non-linear quantum electrodynamics?
Quantum electrodynamics based upon Euler-Heisenberg or Born-Infeld Lagrangians predict photons to move according to an effective metric, which is dependent on the background electromagnetic field in a ...
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Excitation probability for 2 Level Atom
I currently started learning Quantum Optics using the book "Atom Physics" of Christopher Foot. Currently I am working through Chapter 7 and a question occured concerning the intuitively physical ...
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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 ...
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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 ...
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Polarization photon and Stokes parameters
I have the following situation: About the polarization of the photon, I introduce the basis:
Horizontal polarization $|\leftrightarrow>=\binom{1}{0}$
Vertical polarization ...
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Intensity of the diffraction pattern of the double slit
I am trying another approach for my last unanswered question. (Bounty still on for 3 days. Anyone? Please?) Note that this is not the same question but a greatly simplified version concerning a much ...
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103 views
Atomic Coherence(Polarization) of Two Dipole-Dipole Coupled Atoms
My question is about generalization of most simple problem in semi-classical quantum optics. Composite system of two-level systems.
single system's diagram
where atomic frequency: wab=wa - wa; ...
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64 views
polarization - quantum point of view
polarization could be easily imagined in classical model: direction of E vector. is there any simple image for polarization of single photon?
