User talk:Ldussan

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Welcome!

Hello, Ldussan, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few good links for newcomers:

I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your name and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or place {{helpme}} on your talk page and someone will show up shortly to answer your questions. Again, welcome!  RJFJR 14:59, 25 April 2006 (UTC)

Image Details[edit]

Hi! In the beautiful images of the Whirlpool Galaxy We can see a great illustration about how light carrying information is transferred to us. An event occurs at a distant point and a tremendously large number of energy carrying particles are emitted in all directions. They then travel through an evidently very transparent spacial volume where they are absorbed by some kind of matter. If the absorption occurs in the eye of a sentient being it will create a mental impression. If it is absorbed by certain materials on a film substrate it will cause a chemical reaction. But it is the means by which energy in discrete amounts is created and disseminated. However the details of how this transfer process works is under discussion. We see that light can be reflected by mirrors and refracted by media and bent around the edge of corners and even deviated from a linear path by gravity. But that doesn't alter the basic properties of the light energy carrying entity. And we shouldn't be confused into not trying to understanding what it is as well as what it does. And whereas images on paper can be transferred and looked at and understood to represent a field of view of details of light emission events on a flat piece of paper, The raw observation data tells you that the light emission energy comes to you from the direction in which it originated, and probably in the original package.WFPM (talk) 10:27, 21 April 2010 (UTC)

PS: What's an EO Engineer?WFPM (talk) 15:01, 3 August 2010 (UTC)

Electro-Optical Engineer Ldussan (talk) 16:42, 14 August 2010 (UTC)

Well, as an Optical Engineer, do you think that the details in the image of the Whirlpool Galaxy can be communicated to the USA as a modulated wave front? Or do you think that maybe each significant light source sends to earth the photons of light Energy that we receive? I don't want to be presumptuous, but I'm pretty sure you believe in the latter. And I'm an EE who made my best grades in Physics. But my failing is that I really like Nuclear Physics, including its Optics subject matter details.WFPM (talk) 01:44, 17 August 2010 (UTC)


Hi, You seem to be an important contibutor to no-communication_theorem. Maybe you could help me to understand something.. Here's the question I posted at the discussion there: "Regarding erasers experiments. Do I understand correctly that the only reason they do not show FTL communication is because of the filtering? Is the filtering really needed? What if the source of the entangled particles already provides a well defined state - say, with a given polarization? " Thanks Srjmas (talk) 14:33, 14 October 2010 (UTC)


I agree with you Srjmas if by filtering you mean they must use a coincidence circuit transmitted on a classical channel. Is that what you mean?Ldussan (talk) 18:59, 8 April 2014 (UTC)

Civility[edit]

Please remember to be civil and assume good faith regardless of what you'd like to say. This is not and I would highly advise you to go back and either change it or strike it out. New comments in an AfD should go at the bottom of the page as well, rather than the top. Thanks SmartSE (talk) 19:10, 31 October 2011 (UTC)

In an effort to counter the no cloning theorem corollary here iposted this a while back but had it erased with no explanation[edit]

  • From a purely philosophical point of view, this theorem is unsatisfactory for ensemble states. A simple Gedanken experiment can show that the theorem does not seem to apply to an ensemble of particles. This video https://www.youtube.com/watch?v=wGkx1MUw2TU shows an ensemble state of momentum entangled photons having their wavefunctions (interference pattern) altered by their partners interaction with the environment. While this particular video is about a short range lab environment experiment with frame summing over time where theoretically an alleged interaction between the partner photons could occur without traveling faster than light, it is easy to imagine the experiment being done at distances beyond the "reach" of classical communication channels (space-like distances) e.g. Earth and Alpha Centauri Prime. The interaction would still be instant! The classic example for an FTL link would be an entangled photon source in the middle somewhere and Alice and Bob at the space-like distances where the detectors are located. Initially it would take several years (some time to place a source in the middle and some time to establish the link) to communicate with Alpha Centauri Prime but once the light reaches Bob there, Bob would have the ability to send information superluminally to Alice by simply interacting with the setup either through the changes in the which way path info or the diffraction pattern in a loosely general sense. Ldussan (talk) 14:08, 13 February 2016 (UTC)