Wall Street Journal on Entanglement

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SUMMARY

The Wall Street Journal's article titled "Science, Spirituality, and Some Mismatched Socks" discusses quantum entanglement, highlighting a quote from Nicolas Gisin and referencing Einstein's theories. The article inaccurately represents the role of PDC crystals in photon entanglement. Additionally, it mentions Professor Eberly's recent discovery that quantum entanglement can experience sudden death, which may impact quantum computation and philosophical definitions of free will. The discussion also points to a significant number of preprints on entanglement, EPR, and Bell's theorem available in Cornell's archives, indicating a vibrant research landscape in this field.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly quantum entanglement.
  • Familiarity with EPR (Einstein-Podolsky-Rosen) paradox and Bell's theorem.
  • Knowledge of photon behavior and PDC (parametric down-conversion) crystals.
  • Basic concepts of quantum computation and its philosophical implications.
NEXT STEPS
  • Research the implications of Professor Eberly's discovery on quantum entanglement and computation.
  • Explore the latest preprints on quantum entanglement in Cornell's archives.
  • Study the inaccuracies in popular science articles regarding quantum mechanics.
  • Investigate the philosophical ramifications of quantum entanglement on free will and determinism.
USEFUL FOR

Physicists, quantum computing researchers, philosophers of science, and anyone interested in the implications of quantum entanglement and its portrayal in mainstream media.

DrChinese
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Yes, entanglement has gone mainstream (if it wasn't already) with an article in the 5/6/2009 Wall Street Journal on the subject:

Science, Spirituality, and Some Mismatched Socks : Researchers Turn Up Evidence of 'Spooky' Quantum Behavior and Put It to Work in Encryption and Philosophy

The article includes a quote from Nicolas Gisin, a reference to Einstein, and a not-so-accurate chart explaining how photons are entangled (leaving out the PDC crystal's role).

Meanwhile, I thought I would post a link for those who are interested in recent articles in on EPR, Bell and/or entanglement. The link below yields anything with those keywords submitted in 2009 to Cornell's preprint archives. There were 356 such articles as of this morning. :smile:

ArXiv Articles (Pre-print) with EPR, Bell or Entanglement in the Abstract or Title, 2009

This gives you a pretty good idea of the wide variety of work being done in this area. There were over a 1000 articles last year, so there is a lot out there! Please keep in mind that the preprints themselves are NOT peer-reviewed, although they are widely read - and occasionally commented on in the archives themselves.
 
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I thought entanglement was weird.
Finding out people still read WSJ after Murdoch bought it is weirder though.
 
alxm said:
I thought entanglement was weird.
Finding out people still read WSJ after Murdoch bought it is weirder though.

:smile:

Guess I am guilty. Please don't hold it against me. I read Dilbert too, and sometimes it seems like real life.
 
Dear Group, since I always try to speak honestly, I feel that I should mention that Professor Eberly's discovery of the sudden death of quantum entanglement could place an important restraint not just upon quantum computation but also upon Conway and Kochen's recent mathematical physics definition of free will as the opposite of both determinism and randomness.

Of course, this will depend upon how prevalent the sudden death of quantum entanglement is in Nature.
 
cstromeyer said:
Hi, you might also be interested to know that Professor Eberley recently discovered that quantum entanglement can suddenly die:

http://www.wired.com/wiredscience/2009/01/quantumloss/

When the journal says this:

"The relationship persists independently of distance, making possible the near-instantaneous transmission of binary information."

It sounds like it's saying FTL communication of information is possible, but that shouldn't be the case, even in Entangled states.
 
Matterwave said:
When the journal says this:

"The relationship persists independently of distance, making possible the near-instantaneous transmission of binary information."

It sounds like it's saying FTL communication of information is possible, but that shouldn't be the case, even in Entangled states.

Of course, being a popular account, it manages to get a few things wrong in the process. But maybe it will increase interest or awareness a bit. Never hurts.
 

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