Freethought & Rationalism Archive

Answerer · 06-23-2002, 04:57 AM

Guys, there is a recent breakthrough in quantum teleportation, here is the link:
<a href="http://news.bbc.co.uk/hi/english/sci/tech/newsid_2049000/2049048.stm" target="_blank">http://news.bbc.co.uk/hi/english/sci/tech/newsid_2049000/2049048.stm</a>

Anyway, I'm not fully clear with the entire process. For instance, why will the original copy be destoryed in order for teleportation to take place and what actually is quantum connection?

liquid · 06-23-2002, 01:49 PM

Simply put?

Because EPR entanglement basically means that you need to alter the state of one set of photons (i.e. 'destroy' them) in order to get the entangled photons to alter correspondingly (i.e. to 'make them exist')

Of course, it's a lot more messy than that, but one good thing about quantum effects is that they be simplified into very entertaining and odd models for lay understanding (including, to an extent, my own).

And what is it? About as much as anything else in physics, simply a model of reality. No-one is quite sure how it all really works, to be honest. Just a lot.

Veil of Fire · 06-23-2002, 04:09 PM

Quantam physics, string theory, super string theory, etc, are just fancy scientific ways for people to say "Pfffft. I dunno."

tronvillain · 06-23-2002, 04:15 PM

Sorry, you do not get to put quantum mechanics in with string theory. The various interpretations perhaps...

NialScorva · 06-23-2002, 08:24 PM

Quote:

Originally posted by Veil of Fire:
Quantam physics, string theory, super string theory, etc, are just fancy scientific ways for people to say "Pfffft. I dunno."

Considering that quantum electro dynamics have been verified better than *any* other human knowledge, I think that it's unwarranted for you to put it into the same basket as *much* smaller areas of science that are acknowledged works in progress.

Friar Bellows · 06-24-2002, 02:26 AM

Quote:

Originally posted by Veil of Fire:
Quantam physics, string theory, super string theory, etc, are just fancy scientific ways for people to say "Pfffft. I dunno."

No, it's a fancy way for you to say "Pfffft. I dunno."

Answerer · 06-24-2002, 03:25 AM

Is Quantum teleportation by any chances linked to string theory?

Answerer · 06-24-2002, 04:02 AM

Hi Liquid, do you have any other links to ERp entanglement?

Bluenose · 06-24-2002, 05:19 AM

Quote:

Originally posted by Answerer:
Is Quantum teleportation by any chances linked to string theory?

NO

Bluenose · 06-24-2002, 05:49 AM

Alain Aspect showed EPR entanglement in 1982, so I put: EPR Aspect 1982 in Google and it said there were 1900 plus references. Lots of them in other languages <img src="graemlins/banghead.gif" border="0" alt="[Bang Head]" />

Start with EPR_paradox which gives 9 google ref; then try the other phrase. I guess the new results in the OP are improved laser tests of the original Aspect lab work.

I would try to find the best ref but I have to go out for a while. I'll dig some more when I get back.

[ June 24, 2002: Message edited by: Bluenose ]

06-23-2002, 04:57 AM	#1
Answerer Veteran Member Join Date: Feb 2002 Location: Singapore Posts: 3,956	Quantum teleportation Guys, there is a recent breakthrough in quantum teleportation, here is the link: <a href="http://news.bbc.co.uk/hi/english/sci/tech/newsid_2049000/2049048.stm" target="_blank">http://news.bbc.co.uk/hi/english/sci/tech/newsid_2049000/2049048.stm</a> Anyway, I'm not fully clear with the entire process. For instance, why will the original copy be destoryed in order for teleportation to take place and what actually is quantum connection? <img src="confused.gif" border="0">

06-24-2002, 05:49 AM	#10
Bluenose Regular Member Join Date: Jul 2001 Location: small cold water flat Posts: 471	Alain Aspect showed EPR entanglement in 1982, so I put: EPR Aspect 1982 in Google and it said there were 1900 plus references. Lots of them in other languages <img src="graemlins/banghead.gif" border="0" alt="[Bang Head]" /> Start with EPR_paradox which gives 9 google ref; then try the other phrase. I guess the new results in the OP are improved laser tests of the original Aspect lab work. I would try to find the best ref but I have to go out for a while. I'll dig some more when I get back. [ June 24, 2002: Message edited by: Bluenose ]</p>

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search

06-23-2002, 01:49 PM	#2
liquid Veteran Member Join Date: Jan 2001 Location: UK Posts: 1,440	Simply put? Because EPR entanglement basically means that you need to alter the state of one set of photons (i.e. 'destroy' them) in order to get the entangled photons to alter correspondingly (i.e. to 'make them exist') Of course, it's a lot more messy than that, but one good thing about quantum effects is that they be simplified into very entertaining and odd models for lay understanding (including, to an extent, my own). And what is it? About as much as anything else in physics, simply a model of reality. No-one is quite sure how it all really works, to be honest. Just a lot.

06-23-2002, 04:09 PM	#3
Veil of Fire Regular Member Join Date: Apr 2002 Location: South Carolina Posts: 451	Quantam physics, string theory, super string theory, etc, are just fancy scientific ways for people to say "Pfffft. I dunno."

06-23-2002, 04:15 PM	#4
tronvillain Veteran Member Join Date: Oct 2000 Location: Alberta, Canada Posts: 5,658	Sorry, you do not get to put quantum mechanics in with string theory. The various interpretations perhaps...

06-24-2002, 03:25 AM	#7
Answerer Veteran Member Join Date: Feb 2002 Location: Singapore Posts: 3,956	Is Quantum teleportation by any chances linked to string theory?

06-24-2002, 04:02 AM	#8
Answerer Veteran Member Join Date: Feb 2002 Location: Singapore Posts: 3,956	Hi Liquid, do you have any other links to ERp entanglement?

Freethought & Rationalism Archive

The archives are read only.