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Conferences > EQEC > 2017 > EC_1 > EC_1_2
  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper EC_1_2

Critical Velocity and Dissipation of an Ultracold Bose-Fermi Counterflow

Marion Delehaye, Sébastien Laurent, Igor Ferrier-Barbut, Frédéric Chevy, and Christophe Salomon

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Abstract

Superfluidity is amongst the most impressive macroscopic manifestations of quantum behavior. Frictionless flow has been observed in several low-temperature quantum systems, such as liquid helium [1,2], or more recently ultracold gases [3–5]. Several hallmarks of superfluidity such as critical velocity, quantized vortices, and second sound have been observed [6–11], in both liquid helium and ultracold gases, and in both Bose and Fermi systems.

© 2017 IEEE

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