In hyralnyh metamaterialov found reverse the Casimir effect
Physics were able to identify so-called hyralnyh metamaterialov reverse the Casimir effect, ie these materials vidshtovhuyutsya convergence of nanometers at a distance. Research article appeared in the journal Physical Review Letters, and its summary is given in the press release Eymsa Laboratory, whose staff participated in the work.
Hyralnymi metamaterialami called metamaterialy (ie, materials whose properties are determined by internal structure, rather than chemical composition), whose structure is such that any movement in space can not be combined with its own mirror image.
Casimir effect, of which the question was provided in 40 of the last century. A typical example is his next: two metal plates, without charge, placed in a vacuum at the races, standing less than 10 nanometers, a magnetic attraction.
Within the new work, which, however, was of a theoretical nature, scientists have modeled the behavior metamaterialov computer. The fact that the practical production of such semiconductor structures as long as there is in rudimentary condition.
As a result, researchers were able to establish that the two plates of similar material arise repulsion forces. This is due to the fact that the unusual structure of semiconductor materials have an impact on the energy of vacuum fluctuations that underlie the effect.
Recently repellent Casimir effect was obtained in another experiment of American Scientists. In the study researchers placed the gold sector over the quartz plate in brombenzol. Casimir effect vynykav not only between the sphere and plate, but between them and the liquid. This brombenzol "vtyahuvavsya in the gap between objects, supporting field afloat.