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Quantum Computing Breakthrough: Stable Qubits at Room Temperature
Researchers observe the quantum coherence of a quintet state with four electron spins in molecular systems for the first time at room temperature. In a study published in Science Advances, a group of researchers led by Associate Professor Nobuhiro Yanai from Kyushu University's Faculty of Enginee
This breakthrough was made possible by embedding a chromophore, a dye molecule that absorbs light and emits color, in a metal-organic framework, or MOF, a nanoporous crystalline material composed of metal ions and organic ligands. “It will be possible to generate quintet multiexciton state qubits more efficiently in the future by searching for guest molecules that can induce more such suppressed motions and by developing suitable MOF structures,” speculates Yanai. Reference: “Room-temperature quantum coherence of entangled multiexcitons in a metal-organic framework” by Akio Yamauchi, Kentaro Tanaka, Masaaki Fuki, Saiya Fujiwara, Nobuo Kimizuka, Tomohiro Ryu, Masaki Saigo, Ken Onda, Ryota Kusumoto, Nami Ueno, Harumi Sato, Yasuhiro Kobori, Kiyoshi Miyata and Nobuhiro Yanai, 3 January 2024, Science Advances.
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