A research group led by Professor Kenji Ohmori at the Institute for Molecular Science, National Institutes of Natural Sciences are using an artificial crystal of 30,000 atoms aligned in a cubic array with a spacing of 0.5 micron, cooled to near absolute zero temperature. By manipulating the atoms with a special laser light that blinks for 10 picoseconds, they succeeded in executing quantum simulation of a model of magnetic materials.
A quantum simulator is a device that simulates the complex behavior of electrons and otherin a solid by mapping them onto a highly controllable model material.
The ultrafast quantum simulator succeeded in simulating the formation of quantum entanglement , which is a correlation unique to quantum mechanical particles, in 600 picoseconds, the fastest in the world. The ultrafast quantum simulator applies the novel"ultrafast quantum computer" scheme to a quantum simulator: it circumvents the Rydberg blockade effect with an ultrafast laser.
This achievement, which simulates the formation of large-scale"quantum entanglement" at an ultrafast timescale, is expected to contribute to the development of quantum technology by understanding"quantum entanglement," an essential resource for quantum computers and quantum networks, in future large-scale systems close to the practical level.
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