From: rick_s on
In article
<77830c83-75ea-469e-ae89-770fad9d7939(a)k31g2000vbu.googlegroups.com>,
huangxienchen(a)yahoo.com says...
>
>
>
>> ----------------------
>> Mr genius
>> can a single photon interfere with itself
>> as QM claim � ??
>>
>> TIA
>> Y.Porat
>> -------------------------
>
>
>Yes, experiments have shown that a single photon will interfere with
>itself.



A photon is not a little piece of dust. It is a wave packet. It has some
length to it. It is a wave. A short wave. So? Cut it in half and you have
two waves. Make a small enough effect and it will interfere with itself.

People are sure stuck on this notion that matter is like little pieces of
rock. It has never ever been shown to exist in that way.
In fact experiments ever done, have shown that E=mc2 where E is kinetic
energy, andothger term for momentum type of energy. Physical force.
Not electricity. rolling eyes.

From: Inertial on
"rick_s" <me(a)my.com> wrote in message
news:pDZNn.90985$rE4.80918(a)newsfe15.iad...
> In article
> <77830c83-75ea-469e-ae89-770fad9d7939(a)k31g2000vbu.googlegroups.com>,
> huangxienchen(a)yahoo.com says...
>>
>>
>>
>>> ----------------------
>>> Mr genius
>>> can a single photon interfere with itself
>>> as QM claim ??
>>>
>>> TIA
>>> Y.Porat
>>> -------------------------
>>
>>
>>Yes, experiments have shown that a single photon will interfere with
>>itself.
>
>
>
> A photon is not a little piece of dust. It is a wave packet. It has some
> length to it. It is a wave. A short wave. So? Cut it in half and you have
> two waves. Make a small enough effect and it will interfere with itself.

Except a photon is a quantum .. you can't split it into two.

Calling a photon a particle is misleading. Calling it a wave is misleading.
It has some particle-like and wave-like properties/behaviours.

Trying to visualise things in the quantum microcosm in terms of our everyday
experience is almost always misleading, if not plain wrong.


From: Y.Porat on
On Jun 3, 8:34 pm, rick_s <m...(a)my.com> wrote:
> In article
> <77830c83-75ea-469e-ae89-770fad9d7...(a)k31g2000vbu.googlegroups.com>,
> huangxienc...(a)yahoo.com says...
>
>
>
> >> ----------------------
> >> Mr genius
> >> can a single photon interfere with itself
> >> as QM claim ??
>
> >> TIA
> >> Y.Porat
> >> -------------------------
>
> >Yes, experiments have shown that a single photon will interfere with
> >itself.
>
> A photon is not a little piece of dust. It is a wave packet. It has some
> length to it. It is a wave. A short wave. So? Cut it in half and you have
> two waves. Make a small enough effect and it will interfere with itself.
--------------
while you say

to cut it in half
you are only hardly on the right way!!
there is another truth about it
that even you still didnt get !!!
E=hf
is not the right definition of the *real single photon*
it is just a human arbitrary definition !!

nature doe snot know what is that 'one second' of yours that defines
f !!!........
see my thread
'a better new new definition of the real single photon energy'

ATB
Y.Porat
-----------------------



ATB
Y.Porat
-----------------------------------
>
> People are sure stuck on this notion that matter is like little pieces of
> rock. It has never ever been shown to exist in that way.
> In fact experiments ever done, have shown that E=mc2 where E is kinetic
> energy, andothger term for momentum type of energy. Physical force.
> Not electricity. rolling eyes.

From: Sam Wormley on
On 6/3/10 1:34 PM, rick_s wrote:
> A photon is not a little piece of dust. It is a wave packet. It has some
> length to it. It is a wave. A short wave. So? Cut it in half and you have
> two waves. Make a small enough effect and it will interfere with itself.
>
> People are sure stuck on this notion that matter is like little pieces of
> rock. It has never ever been shown to exist in that way.

These are misunderstandings on your part, rick_s.

Background on the Photon
http://en.wikipedia.org/wiki/Photon
http://en.wikipedia.org/wiki/Photon#Physical_properties


From: Benj on
On Jun 3, 2:34 pm, rick_s <m...(a)my.com> wrote:

> >Yes, experiments have shown that a single photon will interfere with
> >itself.

Single slit diffraction. duh.

> A photon is not a little piece of dust. It is a wave packet. It has some
> length to it. It is a wave. A short wave. So? Cut it in half and you have
> two waves. Make a small enough effect and it will interfere with itself.

Yes, only it doesn't happen, or at least nobody has seen it happen.
The problem is that nobody knows exactly WHAT a "photon" is. A "wave
packet" is a neat theory only it doesn't work. Because the energy of a
photon is known. It is known that this determines a wavelength. And
the physical extent of a photon is known. It is also known they don't
split in two. And it is known that they transfer energy much too fast
to have wavelengths compatible with the two slit patterns.

Hence even if a photon is a "wave packet" it still only goes through
one slit at a time. It still does not have enough physical extent to
"sense" the second slit. It's wavelength must be so short (due to
energy transfer and size measurements) that it cannot be the source of
either single or double slit diffraction patterns! If it interferes
with itself it must do so well outside the parameters of light
diffraction patterns!

> People are sure stuck on this notion that matter is like little pieces of
> rock. It has never ever been shown to exist in that way.
> In fact experiments ever done, have shown that E=mc2 where E is kinetic
> energy, another term for momentum type of energy. Physical force.
> Not electricity. rolling eyes.

Well we know photons are little pieces of SOMETHING. They travel
through empty vacuum so that with no medium waves cannot transmit
energy. Hence either the MEDIUM isn't being recognized or the photons
are matter that can travel without a medium! As Maxwell noted, there
aren't any other choices! All else is hand-waving.