The research team at Stanford University in the United States successfully superimposed the two states of the atomic cloud at a distance of half a meter, extending the largest scale record of the quantum state superposition effect from 1 cm to 54 cm. Related research papers published in the latest issue of "Nature" magazine. The team believes the new research may mean finding the demarcation point between the quantum and classical worlds because the new research is more applicable to large-scale macroscopic objects than to those at the quantum level. Nature also published editorials directed at the team's research, describing their experiments and summarizing the results. In the past few years, news about the entanglement of quantum particles with the entire atom has been extensively reported. At present, researchers want to entangle two particles at a longer distance, so there is a problem about the size of the entangled object. Schrödinger had such discussions as a theorist and those in the field of application experts trying to find out if the cats might actually have appeared in two places at the same time. The so-called superimposed state is the assumption that when a cat is enclosed in an unknown inside information box with a gun shot to the box, if only fired a bullet, then the cat is non-death that live, this When the cat's quantum state is a mixture of dead cats and live cats (because people can not accurately know the cat's state at this time). Superimposed state will cause quantum entanglement, which has become one of the basis of quantum random events. According to the Physicists Network reported on the 29th, researchers created a Bose-Einstein Condensate Cloud (BEC) consisting of all 10,000 rubidium atoms (in a super-freezer compartment) initially in the same state. BEC is a new state of science predicted by Einstein 80 years ago that the atoms of different states suddenly "coalesced" into the same state. Then, use a laser to push the cloud into the 10-meter-high chamber to bring the atom into a given state. When the cloud reaches the apex, the wave function is a half-mixture of the given state, representing a position of 54 cm. When the cloud was allowed to return to the bottom of the cavity, the study confirmed that the atomic descent from two different heights proved that the cloud was in a superimposed state. The team realized that while the experiment set a new record for macro-level superposition states, it was still done with a single atom. Single Overcenter Valves,Single Overcenter Valves Vbcd-Se,Truck Mounted Crane Vbcd Se,Crane Accessories Vbcd Se Jiangsu haohong hydraulic Co.Ltd , https://www.jshhhydraulic.com