Time, Quantum Physics and the Mystic.

[Guest guest]

Namaste,

 

Time is an illusion within an illusion caused by Kala which is also

an illusion. Once one brick in the wall is pulled out the entire

edifice collapses. It is evident if you penetrate even what science

says, that this didn't happen at all..........ONS...Tony.

 

 

 

 

No paradox for time travellers

10:00 18 June 2005

NewScientist.com news service

Mark Buchanan

THE laws of physics seem to permit time travel, and with it,

paradoxical situations such as the possibility that people could go

back in time to prevent their own birth. But it turns out that such

paradoxes may be ruled out by the weirdness inherent in laws of

quantum physics.

 

Some solutions to the equations of Einstein's general theory of

relativity lead to situations in which space-time curves back on

itself, theoretically allowing travellers to loop back in time and

meet younger versions of themselves. Because such time travel sets

up paradoxes, many researchers suspect that some physical

constraints must make time travel impossible. Now, physicists Daniel

Greenberger of the City University of New York and Karl Svozil of

the Vienna University of Technology in Austria have shown that the

most basic features of quantum theory may ensure that time

travellers could never alter the past, even if they are able to go

back in time.

 

The constraint arises from a quantum object's ability to behave like

a wave. Quantum objects split their existence into multiple

component waves, each following a distinct path through space-time.

Ultimately, an object is usually most likely to end up in places

where its component waves recombine, or " interfere " , constructively,

with the peaks and troughs of the waves lined up, say. The object is

unlikely to be in places where the components interfere

destructively, and cancel each other out.

 

Quantum theory allows time travel because nothing prevents the waves

from going back in time. When Greenberger and Svozil analysed what

happens when these component waves flow into the past, they found

that the paradoxes implied by Einstein's equations never arise.

Waves that travel back in time interfere destructively, thus

preventing anything from happening differently from that which has

already taken place (www.arxiv.org/quant-ph/0506027). " If you travel

into the past quantum mechanically, you would only see those

alternatives consistent with the world you left behind you, " says

Greenberger.

 

" This is a very nice idea, " says physicist Avshalom Elitzur of the

Weizmann Institute in Rehovot, Israel, who also suggests that

further work in the area could help to clarify the nature of time

itself. " Time is a very mysterious thing. "