Starship Asterisk*

I'm pretty sure you're just a poorly written computer program. A real person wouldn't keep asking the same question over and over after it had already been answered (many times). I figure he's the one from the future who actually invents the time machine, but it's not working quite right and he kee...

I think this is the article that says virtual particles travel faster than light and even backwards in time. http://www.desy.de/user/projects/Physics/Quantum/virtual_particles.html I'm pretty sure you're just a poorly written computer program. A real person wouldn't keep asking the same question ov...

if im reading relativity correct,please correct me if im wrong,if something were to travel faster than light in one frame it will travel backwards in time? If pigs could fly. The "if" in this case is physically meaningless. Since nothing physical can travel faster than c with respect to a...

On this article,maybe i reading it wrong if you scroll down to "faster than light?" it says they do travel backwards in time. http://en.wikipedia.org/wiki/Propagator You are reading it wrong. You are failing to distinguish between a mathematical (or even physical) equivalency to going fas...

So virtual particles don't time travel backwards? In the way you seem to intuit the meaning of traveling backwards in time, no, they don't. No particles travel backwards in time, although it is sometimes convenient to treat them that way mathematically, within the framework of current theory. On th...

What do you mean by time travel? The movie definition? Or relativistic and quantum effects? what would be the difference? The "movie definition" suggests something physically traveling backwards in time, carrying information. No particle does that, virtual or otherwise. But in quantum mec...

Aescens wrote:

outlaw wrote:do virtual particles time travel?

What do you mean by time travel? The movie definition? Or relativistic and quantum effects?

what would be the difference?

neufer wrote:

outlaw wrote:
do virtual particles time travel?

• You have no idea

[url=http://www.realmagick.com/path-integral-example/]Path Integral Example of a virtual outlaw[/url] :wink:

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so they do time travel backwards?

do virtual particles time travel?

neufer wrote:

outlaw wrote:
can hawking radiation be explained without virtual particles?

Of course.

The main advantage of virtual particles is in providing for simplified explanations.

how come all the information i get is connecting virtual particles with hawking radiation?

The article first gives a little background on Hawking radiation. Then says that a team of researchers claims to have found another way to separate particle/anti-particle pairs without using black holes (because we cannot create ones to experiment with this). However their experiment is only a clai...

neufer wrote:

outlaw wrote:
is this evidence of hawking radiation?
also is there any other evidence for it?
http://blogs.discovermagazine.com/80bea ... radiation/

1) probably not
2) no

what does the article talk about?

is this evidence of hawking radiation?also is there any other evidence for it? http://blogs.discovermagazine.com/80bea ... radiation/

you also said they travel from future to present? are there experts who think that virtual particles don't exist?and also hawking radiation deal with virtual particles but has never been observed.

Chris Peterson wrote:

outlaw wrote:is there evidence for virtual particles? i also read of a physics professor named arnold neumier who says that virtual paticles dont exist.

Previously answered. Yes.

yes what?

i also read that there are experts who think they are mathematical and are not real? There are people who think that about "ordinary" particles like electrons and photons, as well- and not unreasonably. In the end, we don't really know what the "real" nature of most things is li...

so they do some sort of sci fi stuff without information? I wouldn't put it that way. It's just the way the math that describes things works out. Nobody said that everything in the Universe needs to be obvious or intuitive. Indeed, very little is. i also read that there are experts who think they a...

Chris Peterson wrote:

outlaw wrote:so virtual particles are not traveling backwards in time? or are they traveling backwards in time without information?

They travel backwards in time in a manner that doesn't carry information from the future.

so they do some sort of sci fi stuff without information?

i was also reading that some people dont think virtual particles dont exist.is this a view?

so virtual particles are not traveling backwards in time? or are they traveling backwards in time without information?

i thought nothing can travel backwards in time without violating causality?

Do virtual particles time travel backwards in time the way tachyons do?

I know that when something travels faster than light it has to deal with time travel backwards in the past and causality,do these things such as shadows travel into the past?

I also read that a non thing can travel faster than light such as a shadow?

Hello,Im doing research on virtual particles and was wondering if their are different views on virtual particles, Are they real or exist or are they not real? Quantum electrodynamics is our most accurate verified physical theory. Quantum electrodynamics is based upon the assumption of the temporary...