Physicists create weird quantum ‘area partitions’ in new experiment

Scientists can now reliably create an odd quantum object known as a site wall. The invention might result in new quantum expertise and to a greater understanding of quantum particles typically.

Area partitions type when teams of atoms at very low temperatures segregate into completely different clumps, or “domains.” Between these domains types a “wall” that behaves so otherwise from the atoms themselves that scientists contemplate it an unbiased quantum object. 

Scientists have witnessed area partitions earlier than, however that is the primary time {that a} staff has developed a dependable solution to create and research them. The researchers simulated a Bose-Einstein condensate, a state of matter the place the constituent particles are cooled to the purpose that they condense right into a single quantum object. By tweaking sure situations, the staff was capable of make atoms within the condensate separate into high- and low-density domains with a site wall in between them. That wall acted like a totally separate object. For instance, pushing the atoms in a single course led the wall to maneuver in the other way.

Associated: What is quantum entanglement?

“It is type of like a sand dune within the desert — it is made up of sand, however the dune acts like an object that behaves otherwise from particular person grains of sand,” first writer and doctoral scholar Kai-Xuan Yao said in a statement.


That places area partitions within the class of “emergent phenomena,” or ones wherein the particles in an object behave otherwise collectively than they do on their very own. Finding out emergent phenomena might help make clear different occasions that contain many particles performing in unison — for instance, within the early universe, when particles first clumped collectively to type stars and galaxies. 

The flexibility to generate quantum objects like these might additionally assist within the growth of recent expertise. 

“It may be used to create a extra sturdy solution to retailer quantum info or allow new features in supplies,” co-author Cheng Chin mentioned within the assertion. “However earlier than we will discover that out, step one is to know how one can management them.”

Initially printed on Stay Science.


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