# Re: The Problem of (and Solution to) Time

*From*: Matej Pavsic <matej.pavsic@xxxxxx>*Date*: Tue, 27 Jan 2009 12:58:58 +0000 (UTC)

Rock Brentwood wrote:

You don't need to go too far in exotic directions for any of this. In

fact, the 5-D geometry is a commonly used device in the representation

theory of the Galileii group and even finds application in such fields

as solid state physics (e.g. semiconductor and transistor physics,

where on is making use of the *non-relativistic* formulation of

quantum field theory; Dirac equation, path integrals, etc.)

As it is necessary to solve the problem of time, so it is necessary to

explain the fundamental interactions. Approaches based on Clifford

algebra and the concept of 16-D Clifford space seem to be very

promising. A by product is a possible resolution of the issue of time,

since a 5-D geometry is embedded in Clifford space.

Although the term "Clifford space" sounds very abstract mathematical, it

is just an extension of the space of points to the space of higher grade

objects -- oriented areas and volumes. The latter objects can be handled

mathematically by means of Clifford algebra, whereas physically they are

associated with extended objects living in space time. Once one extends

a vector space (which is a tangent space to the spacetime manifold) to

the corresponding Clifford algebra (which in turn is a tangent space to

the Clifford space) one finds that "miraculously" spinors enter the

game. Spinors are nothing but certain Clifford numbers, for instance the

sum of a time-like and a space-like vector acting on a special Clifford

number (a "vacuum"). This is a well known result in mathematical

physics.

In a curved 16-D Clifford space, one obtains not only the 4-D gravity,

but also other interactions ('a la Kaluza-Klein). It appears that a nice

and coherent picture is starting to emerge, the issue of time being just

a part of it.

.

**References**:**The Nature of "Now"***From:*James D Jones

**The Problem of (and Solution to) Time (was: The Nature of "Now")***From:*Rock Brentwood

**Re: The Problem of (and Solution to) Time***From:*Matej Pavsic

**Re: The Problem of (and Solution to) Time***From:*Rock Brentwood

- Prev by Date:
**Re: Question about photon wavefunction** - Next by Date:
**Re: coherent states of light as ensembles** - Previous by thread:
**Re: The Problem of (and Solution to) Time** - Next by thread:
**Re: The Problem of (and Solution to) Time** - Index(es):