Questions tagged [epr-experiment]
A thought experiment initially proposed to argue that the description of physical reality provided by quantum mechanics was incomplete. It involves a pair of particles prepared in an entangled state; if the position of the first particle were measured, the result of measuring the position of the second particle could be immediately predicted.
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Is a spacetime-extended wavefunction interpretation of collapse equivalent to Cramer's Transactional Interpretation? [closed]
I've been thinking through an interpretive idea about wavefunction collapse and want to know whether it's just a restatement of Cramer's Transactional Interpretation (TI), or something distinct.
The ...
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Simulating EPR experiments
I know very little about quantum mechanics. I would like to introduce myself to some aspects of it through simulation, and ultimately recover a Bell inequality via monte-carlo simulations of ...
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What is missing in Bell's theorem? [closed]
Some may think of it as a beaten horse. But I've read through prior questions and answers and find only one close to my question
Assumptions in Bell's Theorem
Still, I don't have an answer.
The ...
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Speed of light as limit of information or limit of energy transfer
We say that the speed of light is the limit at which information can be transferred and resolve the EPR issue with non-determinism and how effective information transfer is still limited to $c$.
This ...
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Spin EPR Problem and Locality
Assume that two spin 1/2 particles are entangled in a singlet state:
\begin{equation}
\Psi = \frac{1}{\sqrt{2}}\left(|\uparrow\downarrow\rangle - |\downarrow\uparrow\rangle\right)
\end{equation}
And ...
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Question about entanglement (solving the EPR problem) [closed]
Veritasium 2015 YouTube video https://www.youtube.com/watch?v=ZuvK-od647c&t=43s
I am hoping to understand more about Bell's theorem, and in particular, the experiment in the video. I feel like I ...
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What does it mean that a photon is a particle?
Everyone agrees on the particle-wave dual nature of quantum physics. It is probably one of the axioms of quantum theory. No one questions the wave nature of photons and electrons. However, the ...
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Validity of EPR Argument and Causality
From my understanding, Bell's theorem rests on the EPR argument, where it is argued that either the quantum state does not completely specify a physical system, or the theory is non-local.
Because ...
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Clarification regarding argument in EPR paper
I read through the original EPR paper recently and ran into some confusion regarding the central argument. As I understand it, the authors assert the following two definitions:
Assumption 1: A ...
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Don't Bell tests assume entanglement to begin with?
In descriptions of Bell-type tests (or EPR-inspired tests), the explanation always starts with the assumption that a source produces a pair of entangled particles.
For instance: Aspect, Grangier and ...
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Einstein–Podolsky–Rosen (EPR) paradox and Everett interpretation [closed]
Can Einstein–Podolsky–Rosen paradox be satisfactory explained outside of the Everett interpretation of QM?
Can it be easily explained within Everett interpretation?
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Why are particles assumed to be entangled even after a measurement in EPR thought experiment?
$\newcommand{\Ket}[1]{\left|#1\right>}$
The EPR paradox proposes that for two entangled particles AB sent in different directions, one can measure the position of particle A and calculate that of ...
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Can somebody explain to me one of the Bell experiments?
I can't understand the experiment in this paper.
In this experiment, two electrons at different points $A$ and $B$ are entangled with one photon each. Then, the photons are entangled in point $C$ ...
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Doesn't nonlocality follow from nonrealism in the EPR thought experiment and Bell tests? (Or: How is nonlocal realism viable?)
Original Post, 9/13/2024
It is often said that the Bell test disqualifies "local realistic" theories from quantum physics. But some people emphasize the issue of realism, while others ...
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EPR effect, non-locality, positivism and realism
In the framework of EPRB experiments, has an experimental verification been performed of the conservation of 2-time correlations of Bob's photons polarization despite Alice's polarization measurements?...
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