Bell — 222 discussions

The famous Bell experiment would somehow proof non-locality and/or traveling of information faster then light. A very simple explenation of the experiment is this: there is a subatomic event that creates a particle pair going opposite directions. The subatomic event determines the possible...

hi all, I return to post after about a year. one of the acknowledged loopholes in the bell experiments is how the coincidence circuitry behaves under what might be called "simultaneous H/V measurements" where H/V represent horizontal/vertical polarized photons at one arm. basically, if you...

Hi, I like to build a Farnsworth-Hirsch-Fusor for a school project. I want to use an ordinary bell jar but I am not quite sure if it will work at the pressure I need (0.1-10pa). Does anybody know how much pressure a bell jar can take?

This is too soon. I predict he'll be happy he didn't sell his Nevada ranch. Is she even 18?

I've argued here in the past (with dr chinese and others) about what, exactly, is proved by Bell's Theorem. Here is a new paper which addresses and clarifies many of those points: http://www.arxiv.org/abs/quant-ph/0601205 I suspect it will be of interest to people here. But before...

I hadn't checked in on C to C for awhile and had absolutely no idea! She died on Jan 5th, apparently from an asthma attack. Bell talked about it in detail on the Sunday night show. This must have hit Art Bell very hard as he and his wife were obviously very much in love. She seemed like a...

I've just finished reading Nick Herbert's book 'Quantum Reality,' and I was a bit puzzled by his intuitive proof of Bell's theorem. The part that puzzles me is the graphs on pp. 223 and 224, Fig 12.4 and 12.5. These show the 'matches per four marks' as a function of 'calcite difference.'...

Is it possible to find any of John Stewart Bell's lecture papers anywhere? I am looking for a famous lecture he gave at the International Centre for Theoretical Physics (italy) in 1989.

In reading about Bell tests I found this link:http://www.abc.net.au/science/features/quantum/, which has discussion of numerous loopholes in both theory and experimental design of Bell tests, which when combined, appear to suggest that "local realist" explanations of all Bell test violations...

Questions regarding the Franklin Bell experiment. 1. Given the iron nut suspended between the positive bell and negative bell were equidistant (theoretically in the middle). Which pole would the nut hit first? 2. Does the electron quality change when the suspended nut hits either...

what are the materials needed to make a simple electromagnetic bell? pleasezzzzzzzzzzzzz i've searched all over the web and would you believe it, THERE ISN'T A SINGLE PLACE THAT EXPALINS HOW TO MAKE A SIMPLE ELECTROMAGNETIC BELL! i need to make one for this marking period, but I'm not quite...

[I invite people to post links as responses in case the idea I'm putting forward is already covered someplace that I missed.] Something has been bothering me about this type of experiment for a long time, but this is clearly the place to bring it up. My problem is this: that in an...

After a lookback at the current flap on EPR's validity I found that the Aspect Quantum Chemistry seemed to be invalid in that the modeling involved Calcium's configurational electrons. The model assumes that there are a pair of valence (4s) electrons and a pair of 4p electrons?? There are only...

Last year two very similar proposals were put forward for "loophole-free" Bell tests: R. García-Patrón Sánchez, J. Fiurácek , N. J. Cerf , J. Wenger , R. Tualle-Brouri , and Ph. Grangier, “Proposal for a Loophole-Free Bell Test Using Homodyne Detection”, Phys. Rev. Lett. 93, 130409 (2004)...

I will split this post so to make it easier to reply, if needed. I. Background ============= The EPR Paradox (1935) left the scientific community in a divided state. Some saw QM, even then a successful theory, as the likely victor in the debate over realism. But many remained unconvinced...

The four bell states are 1: (|00>+|11>)(2)^-0.5 2: (|00>-|11>)(2)^-0.5 3: (|01>+|10>)(2)^-0.5 4: (|01>-|10>)(2)^-0.5 I'm looking at super dense coding and the way i thought of it at first was that if a measurement of the first qubit was made then if we consider the first bell state (1)...

Do polarization cross-sections from opposite microwave background n-poles disobey the Bell inequality?

When a photon's spin is measured, the photon must exert a force on the device that measures its spin.Since a force is associated with an acceleration and an acceleration with gravity,could the photon have created a gravity wave that travels through space and determines the spin of a second...

Just as the thermal equilibrium between two relatively receding (c<v<2c) cosmological horizons is justified by inflation, such a Higgs phase transition could account locally for correlations violating the Bell inequality through superluminal (c<v<2c) "signaling."

Bell J.S. Physics. 1964,1,195. Whether is not present at somebody? Whether is it possible download it somewhere ? There is interesting to my what purpose had Bell, proving an inequality. Is it to deny a quantum mechanics? I hope, that from this article it will be possible to gather the...

From Skeptic vol. 3, no. 3, 1995, pp. 72-80. The following article is copyright © 1995 by the Skeptics Society, P.O. Box 338, Altadena, CA 91001, (818) 794-3119. Permission has been granted for noncommercial electronic circulation of this article in its entirety, including this notice. For...

Hi, I would appreciate help with the following problems: 1.) A diving bell in the shape of a cylinder with a height of 1.00 m is closed at the upper end and open at the lower end. The bell is lowered from air into sea water (p=1.025 g/cm^3). The air in the bell is...