Re: strings near the speed of light
From: Funland (Funland_at_seed.net)
Date: 08/30/04
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Date: Tue, 31 Aug 2004 02:40:37 +0800
It seems that you are right, they don't address this.
Why?
I don't know.
Maybe they are more concerned with the starting points from the quantum
mechanics.
They read the general relativity from the quantum perspective.
The space-time is assumed to be quanta in very small one.
"N:dlzc D:aol T:com (dlzc)" <N: dlzc1 D:cox T:net@nospam.com> ???
news:mAmYc.5684$bT1.1935@fed1read07 ???...
> cross-posting to sci.physics.relativity
> "Mike" <no..spam@please.com> wrote in message
> news:l1mYc.578$Pd2.232416@monger.newsread.com...
> >I have two questions about how the mass of the string might change due to
> > relativistic effects. As I understand it, the mass of fermions is
> > determined
> > by the amplitude and frequency of vibrations of strings. The greater the
> > frequency, the greater the mass. Also in special relativity, time slows
> > down
> > as you approach the speed of light. So frequencies slow near c. Clock
run
> > slower. Also in general relativity, again, time slows down near heavy
> > objects, or in other words, frequencies get faster as you move away from
> > heavy objects.
> >
> > If this is so, then question one is: Wouldn't the vibration frequency of
> > strings slow down as a string approaches the speed of light. And
wouldn't
> > this mean that mass (string frequency) approach zero near c? And
question
> > two: Wouldn't the frequency of strings (and thus the mass of objects)
> > tend
> > to increase as it moves out of a gravitational well? This latter
question
> > might be the explanation for effects attributed to dark matter and dark
> > energy. But I will save that discussion for after my premises are
> > confirmed.
> >
> > I've looked in Zwiebach's new book and in Hatfield's introduction to QFT
> > of
> > points and string. Neither book seems to address this question, though I
> > may
> > not have looked carefully enough. Yet this does seem to be a fundamental
> > question that should be asked. So I do appreciate any insight you might
> > have
> > in this area. Thanks.
> >
> > Mike
> >
>
>
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