From: utzoo!miles
Newsgroups: net.space
Title: Re: quantum and FTL 
Article-I.D.: utzoo.2346
Posted: Fri Aug  6 07:31:30 1982
Received: Fri Aug  6 07:31:30 1982

	Quantum tunneling is NOT instantaneous in any sense of the word.
	"A particle which appears on one side of a potential barrier at a 
	particular instant in time...", the instant in this is a completely
	different instant as in 'instantaneous'. The word instant in this
	statement should be replaced by 'point in time'. And as for the    
	instantaneous travel, which would be suggested by no "transmission"...
	, it does take the particle finite time to cross the barrier, the measur	e of time is to small to measure by conventional, standard timing
	devices, so out of convenience one says it is "instantaneous", although
	it is not. It could be measured, but one would need a very,very acurate
	timing device. And yes, there is transmission. The particle is not prese	nt at one barrier, and then just appears at the other barrier.  

		Raymond S.