Recent content by jk22
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I Measurement problem - will this work?
For a qubit the measurement could be written as a transition operator ##\Psi_{n+1}=T\Psi_n/||T\Psi_n||## where T is not forcedly a unitary operator. But the problem is that it remains probabilities and in fact there would be infinite number of ways to extrapolate. It is like saying something...- jk22
- Post #5
- Forum: Quantum Physics
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Collection of Lame Jokes
Ìt is supposed that the handicap is deafness while look is predominent, the symbols would come before the explanation of calculation.- jk22
- Post #22,038
- Forum: General Discussion
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Collection of Lame Jokes
By substitution rule : If 5+5+5=15, we substitute the symbol 5 by 8 this means 8+8+8=18- jk22
- Post #22,036
- Forum: General Discussion
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I Diffraction of point source/s and duality
I mean an idealized point source not a slit. But quantum mechanics could be involved by computing the diffusion of a delta function or 2 and superposing the resulting wavefunction at different times. In the case of one source, the wf after the source is a chirp of modulus 1, but the factor in...- jk22
- Post #3
- Forum: Quantum Physics
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I Diffraction of point source/s and duality
Consider 1 and 2 point sources. Then corpuscular view gives a single peak in those cases, whereas considering the undulation of a quantity along the path gives fringes in both cases. My question is : is it true that the case single point source gives a single peak and two would give fringes...- jk22
- Thread
- Diffraction Quantum mechanics Wave-particle duality
- Replies: 2
- Forum: Quantum Physics
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I Confused by nonlocal models and relativity
I don't know which prediction for CHSH is made by QFT ? QM predicts ##2\sqrt2## and HV 2, whereas experimental values are inbetween, 2.67, 2.25, 2.47, 2.73, 2.07, 2.22 which is on average nearer to 2 than to QM ?- jk22
- Post #374
- Forum: Quantum Interpretations and Foundations
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I Confused by nonlocal models and relativity
I would say that the usage of ##\lambda## is neither local nor temporal. I.e. all covariances in CHSH are simultaneously measured, I don't know if this is experimentally the case. It is also at all places simultaneously.- jk22
- Post #372
- Forum: Quantum Interpretations and Foundations
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I Confused by nonlocal models and relativity
Thanks for all the explanations. Even if this mixing of math I have done seems local, there remain to calculate ##\max A(\lambda_1)B(\lambda_2)## which is non locsl, like if the computer or the consciousness would modify the wanted results.- jk22
- Post #364
- Forum: Quantum Interpretations and Foundations
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I Confused by nonlocal models and relativity
I'm just considering that a particle s1 is going to A and another particle s2 to B measurement places. But I'm still mixing information (math) and the physics described by the symbols. This I call local in the sense that "every element of physical reality (particles 1 and 2, each flying in one...- jk22
- Post #360
- Forum: Quantum Interpretations and Foundations
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I Confused by nonlocal models and relativity
That's ok if lambda is information, but let suppose it is a physical particle. In a spacetime diagram lambda is first at the source, then it goes with at most speed of light in both directions ? For then arriving in A and B ? This seems physically impossible, or that formula is a mixture of...- jk22
- Post #357
- Forum: Quantum Interpretations and Foundations
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I Confused by nonlocal models and relativity
Coming back to Bell's CHSH inequality, I'm confused that the formula : $$\int A(\vec{a},\lambda)B(\vec{b},\lambda)\rho(\lambda)$$ is considered local. Like how can the "element" lambda be at the same time both in A and B ? It seems lambda is non local there, at the measurement time. Or am I...- jk22
- Post #355
- Forum: Quantum Interpretations and Foundations
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I Why the integral of a differential does not give the function back in 2D?
What if in fact x and y would represent the position of relativistic particles with their own proper time ##x(\tau_1)y(\tau_2)## -
I Why the integral of a differential does not give the function back in 2D?
In fact to have two path we would need ##\int x_1dy_1+\int y_2dx_2##. Classically What If we suppose the path were probabilists ? Then like in quantum mechanics, it could follow both path, or a superposition of them ? It gives back xy because of the sum of the weights. -
I Why the integral of a differential does not give the function back in 2D?
What about if we say x depends on a parameter fw1 and y on fw2 where fwi represented free will of person i. Could freewill be linked to a single parameter time ? -
I Why the integral of a differential does not give the function back in 2D?
I rather see as x and y are independent. It's clear that if one assumes a common cause parameter that determines the variables x and y it could change, (like in Bell's theorem)