Metamaterials are able to manipulate the spread of light through them. A few years ago, it gave rise to the projects to create metamaterials that allow photons to move through its substance only in the areas that characterize the space surrounding us. At the same time other parts of such a facility should have a different geometry, different from Minkowski space.
Igor Smolyaninov colleagues at the University of Maryland (USA) has created just such a metamaterial. The physical basis for this proposal is self-assembling nanoparticles of cobalt.
|Nanocolonies constructed of cobalt particles suspended in kerosene, can give different geometries modeled space. (Here and below illustrate the Igor I. Smolyaninov et al.)|
The result was a model of the multiverse, one of which is the essence of the model of Minkowski space, and the other corresponds to the other possible space-time geometry. Of course, built a similar, that is, in Minkowski space tamoshnem not three dimensions plus time, and the model of two dimensions, plus a third, to a time in our continuum. "These regions act as migratory 2 +1 space-time continuum of Minkowski, which periodically appear and disappear within the" multivselenskogo "metamaterial" – say the developers.
To create an ordered structure of cobalt nanoparticles, they are influenced by the magnetic field. At high particle density field made them line up in columns, which are mathematically consistent with Minkowski space-time in the version 2 +1.
When light passes through them, they behave as if this region is Nanocolonies time, and the two dimensions perpendicular to the column, – space.
|Scheme for obtaining information in the course of the experiment.|
But by itself, this technique is not able to create a model of the multiverse, with varying geometry. To do this, scientists have chosen a density of cobalt nanoparticles, which was just below the threshold required for the formation of the "right" nanocolonies. When then they influenced by the magnetic field, Nanocolonies emerged as a solid structure on small regions of space. To discover them and to use for the experimental data, a group of Mr. Smolyaninova applied polarized light.
So, says Igor Smolyaninov Multiverse model or close this kind can be used for experimental physicists studying exotic space-time geometries that are not found in our region of the universe. This is facilitated by the fact that photons can be made to them behave as particles with mass, and how bezmassivnye, according to pre-defined properties such "universe."
With appropriate research preprint is available here.
Prepared according to Technology Review.