Questions tagged [quantum-eraser]

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Help creating a dyi delayed-choice quantum eraser experiment for teens

We're planning the science fair for my wife's high school later this year (if the quarantine allows us...). We are looking into doing this simple quantum eraser experimenter from Scientific American, ...
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Conclusions from the delayed choice eraser double slit experiment?

Is it safe to say the point of all of these one particle slit experiments is that the very existence of "which way" information is what collapses the wave function even in the case that information ...
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Quantum Eraser under Lorentz Boost

Suppose I am conducting the Quantum Eraser experiment. The results of this experiment are easy to understand with the traditional quantum mechanical interpretation of a pair of entangled photons. ...
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In the Delayed “Choice” Quantum Eraser experiment, what is observed between detection of the signal photon and the idler photon?

It is mentioned in the study that: In the experiment the optical delay (LA,B 2 L0) is chosen to be 2.3 m, where L0 is the optical distance between the output surface of BBO and detector D0, and LA ...
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what we call “erase” in the delayed choice quantum eraser experiment?

im thinking about the quantum eraser experiment and I got some insight that I want to check. Suppose that I have the system of the experiment (S): a closed box with 2 slits, with a 1 bit detector (D)...
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Would the results of the Double Slit Quantum Eraser be the same using massive particles?

I'm wondering if the double slit quantum eraser experiment would produce (or does produce, if it's already been done) the same results if massive particles were used instead of photons. My reason ...
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Is it possible to reconduct “The delayed quantum eraser experiment” in home?

The delayed quantum eraser was conducted by Kim et al. in 1999 with the use of BBO crystals, polarizers, detectors and so on. I believe some of these equipments can be found online kinda cheaply, ...
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In the Quantum eraser experiment, Why doesn't detector D1 or D2 cause wave function collapse?

I thought measurement at detectors is what collapes the wave function. So why aren't these detectors causing collapse? Why is there an interference pattern?
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Question about the shift of patterns in the Delayed Choice Quantum Eraser

In the double-slit Delayed Choice Quantum Eraser experiment by Scully with the installation in the figure below, as in Wikipedia, when a photon hits D4 or D3 the intricated photon hits D0 with a ...
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52 views

When does the exchange of energy take place in the Quantum Eraser experiment?

I found this PBS video regarding the delayed choice / quantum eraser experiment, which, like all the others I've seen, states that the interference pattern generated by the photons that pass through a ...
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Why a 45° polarizer brings back the interference pattern in the quantum eraser experiment?

I'm not a physicist, I'm just a physic-enthusiast.I have a practical sense of experiments and results but i cannot deal with the actual calculation involved. I was reading about the quantum eraser ...
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Quantum eraser experiment with unbalanced interfereometers

In quantum eraser experiments, which path information is made available and then destroyed before the photon hits the screen. Now, say we had an experiment in which a photon is sent to a double slit ...
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Double Slit Eraser - does the wave function collapse and restore or never collapse

This video shows a rudimentary double slit eraser experiment. He sends photons through a double slit with a polarization film before the double slits (with a 90 degree difference) to obtain "which-way"...
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Could a form of (temporally-limited non-superdeterministic) strong determinism resolve retrocausality in quantum theories?

It looks like "superdeterminism" is considered as a potential way to resolve EPR paradox/Bell's theorem/quantum theory. It seems "retrocausality" (or what could be or is called ...
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Why is there a π phase shift in Fig.4 compare to R01 shown in Fig.3?

About Kim 's delayed choice quantum eraser experiment. Is it possible to adjust the phase of interference fringes from $D_1$ and $D_2$ by adjusting the distance of $D_0$ screen?... Shouldn't they ...
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Alternative to the “eraser” in the Quantum Eraser experiment?

I haven't seen any literature on the difference between erasing the photon's which-slit information vs just hiding it forever. Erasing quantum-information is effectively just a perpetual quarantine ...
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Some clarification on Kim et al.'s “Delayed Choice Quantum Eraser”

First, what is the optical delay in the experiment.In the arxiv paper published in 1999 it states it is roughly a 2.5 meter difference between the path to D0 from the BBO and the path to D1-4 from the ...
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In Scully Duhl quantum eraser experiment, how is it ensured that only one atom is excited?

The Scully Duhl quantum eraser experiment uses lasers to excite one of the two atoms (which each releases two photons in opposite directions) where each atom acts as a proxy for a slit in the ...
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Can delayed choice be resolved by special relativity?

I learned about the delayed choice phenomena a while ago, it was an experiment with double slit with a beam splitter behind so the entangled photon pair after the split goes to a screen and two photon ...
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Delayed choice double slit experiment

I want to be certain, was there an experiment ever performed, like, where if we do not look at the screen and then the detector at the double slit destroyed(which path information is lost). And then ...
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3answers
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Scully’s DCQE paper 1999 - reasons for phase shift

http://Arxiv.org/abs/1103.0117 Or better Google the paper using string: arxiv:quant-ph/9903047v1 In order to “see” (detect) the interference pattern we have to take care about the shift of Lambda ...
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Simple Quantum Eraser

I am familiar with the standard Quantum Eraser experiment. I was thinking of the following. My hunch is that the screen will show an interference pattern since the which way information for the ...
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What happens if you put the BBO before the slits in a delayed choice quantum eraser experiment?

I've read that you can't detect an interference pattern at D0 in the image below without correlating with data from D1, D2, D3, and D4 due to the coherence being broken by the BBO crystal. Does this ...
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One simple question regarding delayed choice quantum eraser

My question is similar to Questions About The Delayed Choice Quantum Eraser Experiment. You may read this question and related answers first (or not). My question is, in the delayed eraser setup, if ...
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Is there a theoretical derivation of Kim's delayed choice quantum eraser?

Is there a theoretical derivation of Kim's delayed choice quantum eraser? The original paper only shows the experimental data.
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Quantum Eraser Mars Communicator and Alien Detector!

Build a Quantum Eraser Mars Communicator (QEMC) with one detector E on Earth and another detector M on Mars. The detector M also has an eraser QE which can be turned on or off by Elon Musk on Mars. ...
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Question about delayed choice quantum eraser

I'm using figure 2 of wikipedia's entry https://en.wikipedia.org/wiki/Delayed-choice_quantum_eraser If the idler beam is undetected, we get a interference pattern. If it's detected, there's no ...
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Modified delayed choice quantum eraser with a game of rock paper scissors

Okay, I came up with this great idea to intuitively understand retrocausality which is implicated in the delayed choice quantum eraser experiment. Alice and Bob have decided to do an experiment. If ...