We have predicted that in a high magnetic field the electron liquid in nanowires supports two hybrid sound waves, combining oscillations of density and temperature.
Significance and Impact
Our discovery offers a possibility of effective cooling of computer circuits through nanowires.
- Electrons in the wire are described as a quantum liquid, in which excitations form a gas moving at its own velocity.
- The system supports two sound modes propagating at different speeds.
- This contrasts with ordinary fluids where only one sound, the density wave, is supported.
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