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Emergent Magnetic Monopoles Isolated Using Quantum-Annealing Computer

By Los Alamos National Laboratory

July 29, 2021

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Scientists at the U.S. Department of Energy's Los Alamos National Laboratory (LANL) used a D-Wave quantum-annealing computer to test the behavior of isolated emergent magnetic monopoles.

LANL's Cristiano Nisoli said the achievement hinged on leveraging the collective dynamics of quantum bits (qubits).

The team generated an artificial spin ice by using the quantum system's superconducting qubits as a magnetic building block.

The approach trapped monopoles using Gauss's law, and the team was able to monitor their quantum-activated dynamics and mutual interaction.

This confirmed that magnetic monopoles cannot just manifest from an underlying spin structure, but can be controlled, isolated, and analyzed precisely.

D-Wave's Andrew King said, "The ability to programmatically manipulate emergent quasiparticles may become a key aspect to materials engineering and even topological quantum computing; we hope it will be foundational for future research."

From Los Alamos National Laboratory News
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