What is the role of vortices in superfluids

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SUMMARY

Vortices play a crucial role in energy dissipation within superfluids, which are characterized by their frictionless flow. The discussion highlights the importance of understanding how vortices contribute to maintaining low temperatures through self-regulation mechanisms. Key references include Thouless' book "Topological Quantum Numbers in Nonrelativistic Physics" and works by expert G.E. Volovik, which provide insights into the energy dynamics in superfluids. These resources are essential for comprehending the complex behavior of superfluid systems.

PREREQUISITES
  • Understanding of superfluidity and its properties
  • Familiarity with vortex dynamics in fluid mechanics
  • Knowledge of topological quantum numbers
  • Basic principles of thermodynamics related to low temperatures
NEXT STEPS
  • Read Thouless' "Topological Quantum Numbers in Nonrelativistic Physics"
  • Explore G.E. Volovik's research papers on superfluid dynamics
  • Investigate the mechanisms of energy dissipation in superfluids
  • Study the self-regulation processes in low-temperature fluids
USEFUL FOR

Physicists, researchers in condensed matter physics, and students studying superfluidity and vortex dynamics will benefit from this discussion.

yanniru
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I recently learned that vortices dump energy in otherwise frictionless superfluids, (or is there other ways?). Can someone point to a paper or article, on-line preferred, that explains energy dissapation in superfluids. Is it how a low temperature is maintained- a kind of self-regulation by the fluid. And where does the energy go?
 
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I remember there is this answer in Thouless' book "topological quantum numbers in nonrelativistic physics". And Volovik is a expert in this field also. You can search their paper.
 
Thanks. The book is online.
 

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