Science, Space and Technology News 2024
Engineering atom interactions inside an artificial quantum material resulted in a new quantum state: the higher-order topological magnet. Credit: Jose Lado/Aalto University
This new state could offer unprecedented protection against decoherence, enhancing quantum technologies with its robust topological excitations that maintain higher quantum coherence than their individual components.When different quantum states combine, new collective states of matter can emerge.
To manipulate how the atoms behaved inside the quantum material the researchers had assembled, they poked each individual atom with a tiny needle. This technique allows for the accurate probing of qubits at the atomic level. The needle, in reality an atomically sharp metal tip, served to excite the atoms’ local magnetic moment, which resulted in topological excitations with enhanced coherence.
France Dernières Nouvelles, France Actualités
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