American scientists design super materials to release energy transfer information in the form of photons
zhongguokejiwangkeji· 2016-05-13 08:58:40
< p >, the original title: American scientists design materials in the form of photon energy release information < p < p > [introduction] Lawrence Berkeley National Laboratory and the University of California, Berkeley scientists in the journal Physical Review Letters, wrote an article pointing out that, they design the A has not in the nature of the novel attributes "quantum metamaterials, which is composed of a light of artificial crystal and captured ultra cold atoms, similar in many ways and crystal, but the structure is more" perfect ", there is no natural materials in common flaws. < p < p > original title: Super materials in the form of photons to release energy transfer information < p < p align = "center" > < p > Science and technology daily, Beijing, May 12 (reporter Liu Xia), the Lawrence Berkeley National Laboratory and the University of California, Berkeley, scientists in the journal Physical Review Letters, wrote an article pointing out that, they designed a have not in the nature of the novel attributes "quantum metamaterials, which is composed of a light of artificial crystal and captured ultra cold atoms, similar in many ways and crystal, but the structure is more" perfect ", there is no natural materials in common flaws. < p > researchers say them or to precise positioning in this optical crystal probe atomic positions, and use another laser (near infrared) to tuning the behavior, so that the atoms in the form of photon on-demand release energy; in turn, the atoms can be another atom probe (located in the same or different lattice absorption, thus forming a simple exchange of information. < p > led the study of Berkeley Lab, materials science division responsible person Zhang Xiang (transliteration) said: "for the release of a single photon enhancement and ultra fast control is quantum technologies, especially the core of quantum information processing, the previous scheme can only do one thing, and our scheme can be considered at the same time." "The new method allows us to control the speed of the photon release, so we can process and transmit the information more efficiently and efficiently," said Pankaj Gaha, author of the paper." < p > the new scheme is expected to atom probe release speed of photons from ns (a second one billionth) accelerated to picosecond (a second one trillion), more important is, this process is "lossless". This means that photon does not like in the traditional materials as energy loss, overcame the obstacles faced by quantum computation and quantum information processing of. A crucial step in the processing of information in quantum computing is to rapidly release photons and transfer photons between atoms. < p > researchers found that Rb atoms are very suitable for the study, but Ba, Ca and Cs atoms can also be within the implantation of artificial crystal. Although the obtained artificial crystal is one dimensional, it may also be able to use this method to create two-dimensional, three-dimensional quantum super material crystal structure. < p < p > Jiaha stressed that the new study "ultra cold atoms" with metamaterials research combined together, "this kind of marriage to solve the metamaterial platform facing some of the major challenges." Zhang Xiang said: "the latest research for optical metamaterials and is expected to open up new areas of interaction."
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