New set of equations predicts hydrodynamic behavior of magnons in a magnet

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New set of equations predicts hydrodynamic behavior of magnons in a magnet
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The term 'quantum transport' may conjure images of a fantastic futuristic commuting option. In condensed matter physics, however, this is a fundamental concept in the hydrodynamics of electrons in solid and fluid materials.

and heat currents showed a significant deviation from expectations based on the standard magnetic"Wiedmann-Franz law."

Now, a team of researchers led by Kyoto University and the Kavli Institute for Theoretical Sciences in Beijing has formulated a new set of equations that could predict this difference between the conventional currents carried by magnons in a magnetic medium.

Sano's team posits that hydrodynamic magnon transport offers higher potential than conventional noninteracting electrons. With this hypothesis comes the anticipation that magnon transport properties will change, showing hydrodynamic traits and facilitating magnon fluid detection. "The direct observation of magnon fluids has been an ongoing issue due to the technical inability to probe for characteristics of time and length scales," adds Mamoru Matsuo of KITS,"but we expect our results to become key evidence for an emergent hydrodynamic magnon behavior, leading to the direct observation of magnon fluids.

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