This is the mail archive of the cygwin-talk mailing list for the cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: SNR calculations (was Re: setup.exe missing from FTP site)


On Wed, 30 May 2007, Corinna Vinschen wrote:

> On May 30 09:32, Igor Peshansky wrote:
> > On Tue, 29 May 2007, Warren Young wrote:
> >
> > > Dave Korn wrote:
> > > >   Say, what is the square of a photon, anyway?
> > >
> > > One way to square photons is to make them pass through a sufficiently
> > > small square hole in an opaque plate.  The squared photons will undergo
> > > a diffraction distortion, so whether the resulting value is 1 or 0
> > > (photons visible or not) will depend on the angle between the hole and
> > > your observation apparatus.
> > >
> > > The basic technique has already been studied.  You can see a simulation
> > > of the results here:
> > >
> > > 	http://en.wikipedia.org/wiki/Image:Square_diffraction.jpg
> >
> > My notion of a square photon is a photon that would not fit into a
> > photon-sized round hole.  I don't believe there is a way to achieve that
> > via diffraction...
>
> What if the square photon isn't as powerful (lower frequency) as the
> round photon for which the round photon hole has been designed in the
> first place?  Is it too far-fetched to assume that in this case the
> diagonal size is less than the diameter of the hole?
>
> Just a hippothesis...

Even if the diagonal size wasn't less than the diameter of the hole, my
son, when he was 1 year old, usually just used a hammer.

That, or assume that at the speed of light either the hole or the photon
will give...
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha@cs.nyu.edu | igor@watson.ibm.com
ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name changed!)
     |,4-  ) )-,_. ,\ (  `'-'		old name: Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

Freedom is just another word for "nothing left to lose"...  -- Janis Joplin


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]