Are there, or could there be, more than one time dimensions?

  • 7 Replies
  • 3147 Views

0 Members and 1 Guest are viewing this topic.

*

Offline Lamprey5

  • Jr. Member
  • **
  • 38
    • View Profile
I'm curious if there are more than one time dimensions. Maybe, like extra spatial dimensions, the extra time dimensions  are too small, or too large to have been observed. Or perhaps there are other 'directions' in time, not just the future and the past.
It appears that in all physical theories about the universe, such as general & special relativity, super-symmetric string theory, M-theory, etc. it is assumed that time only goes in one direction, that is the direction in which entropy increases.
Although not consistent among observers in relative motion (i.e. they won't agree on how much time has elapsed), is it possible for time to have more than one dimension? and would another time dimension be another 'direction' to go in time?
...or what WOULD another time dimension be like?

*

Offline Soul Surfer

  • Neilep Level Member
  • ******
  • 3345
  • keep banging the rocks together
    • View Profile
    • ian kimber's web workspace
Are there, or could there be, more than one time dimensions?
« Reply #1 on: 13/02/2011 18:49:19 »
Experts on these things have suggested that the only complex long term metastable universes that can exist are those with three space and one time  OR  three time and one space dimensions. 

see  http://en.wikipedia.org/wiki/Time-space#Privileged_character_of_3.2B1_spacetime
this also contains citations of the root papers that lead to this conclusion


These may be in some way complementary to each other, that is, by exchanging space and time we can get similar results.  I feel that this concept may be very significant but to go beyond that here would venture into new theories territory.
« Last Edit: 13/02/2011 18:53:23 by Soul Surfer »
Learn, create, test and tell
evolution rules in all things
God says so!

*

Offline yor_on

  • Naked Science Forum GOD!
  • *******
  • 12188
  • (Ah, yes:) *a table is always good to hide under*
    • View Profile
Are there, or could there be, more than one time dimensions?
« Reply #2 on: 13/02/2011 20:06:20 »
Yes, that's really interesting SoulSurfer. You could say that we need the dimensions to have a physics theory. Without 'flux' nothing is measurable.
"BOMB DISPOSAL EXPERT. If you see me running, try to keep up."

*

Offline jfellers

  • First timers
  • *
  • 2
    • View Profile
Are there, or could there be, more than one time dimensions?
« Reply #3 on: 14/02/2011 18:24:52 »
I propose you introduce only the concept of paired negative and positive time vectors, and infinitely multiple pairs.  Then, you can disregard the role of antimatter, as antimatter (as we know it) exists in our (positive) time vector.  All we can assume is that the universe in the negative time vector unfolded exactly -- exactly -- as the universe in our positive time vector.  In each universe, every particle played exactly the same influence on every other particle in the unfolding. 

Consider oscillation -- this depends on your perspective of time.  From the perspective of the singularity, it is a complex unfolding in both positive and negative time vectors that sum to -- essentially -- nothing.  A zero-sum game, so to speak.

In this view, we can rest assured that whatever matter exists at a point in time in the negative time direction -- in the negative universe -- directly offsets the structure and amount of matter the positive time direction.  There is no instability "event" as is proposed in the Nothing Universe Theory.

From this viewpoint, there is no time without matter, and vice-versa.  It also helps me to conceptually grasp an infinitely expanding universe.  I perceive it to be infinitely expanding only because -- from my limited perspective -- I can only perceive a "positive" flow of time.

I am so comfortable in the beauty of this epiphany, that it regularly reassures me in times of stress.  It reinforces my belief in predeterminism.  Everything, in the end, amounts to nothing.  Or what I tell my friends: "What will happen, can happen."  In summary: "Everything is nothing."  (Can someone translate this to Latin for me?). 

*

Offline Bill S

  • Neilep Level Member
  • ******
  • 1862
    • View Profile
Are there, or could there be, more than one time dimensions?
« Reply #4 on: 14/02/2011 21:06:38 »
You might find it helpful to take a look at the work of Itzhak Bars.

Itzhak Bars of the University of Southern California in Los Angeles believes that there are two dimensions of time, and has evolved a theory in support of this.  Of course, Bars is fully aware of the difficulties involving negative probability and the paradoxes surrounding time travel, but he thinks there may be constraining symmetries that could overcome these potential problems.

*

Offline Bill S

  • Neilep Level Member
  • ******
  • 1862
    • View Profile
Are there, or could there be, more than one time dimensions?
« Reply #5 on: 14/02/2011 21:25:27 »
Quote
(Can someone translate this to Latin for me?).

No, but will this do instead?

Nimium vetus sum pro hoc stercore!

*

Offline imatfaal

  • Neilep Level Member
  • ******
  • 2787
  • rouge moderator
    • View Profile
Are there, or could there be, more than one time dimensions?
« Reply #6 on: 15/02/2011 11:06:11 »
You're never too old for new theories of everything
Thereís no sense in being precise when you donít even know what youíre talking about.  John Von Neumann

At the surface, we may appear as intellects, helpful people, friendly staff or protectors of the interwebs. Deep down inside, we're all trolls. CaptainPanic @ sf.n

*

Offline graham.d

  • Neilep Level Member
  • ******
  • 2208
    • View Profile
Are there, or could there be, more than one time dimensions?
« Reply #7 on: 15/02/2011 13:33:26 »
"Everything is nothing" 

Panton est nihilum