Second Quantized Landau Variables in the Case of Dilute Bose-Einstein Condensates

28 Aug 2017  ·  Yee D. D. H., Myers Richard ·

Landau was the first to advance hydrodynamic concepts such as density and velocity to describe the superfluidity of liquid He$^4$. Due to the recent spectacular success of experiments demonstrating Bose Einstein condensation in dilute Bose atomic gases, interest has been revitalized in the theoretical description of Bose Einstein condensates... Many of the properties of these gases were obtained by using the Gross-Pitaevskii equation (GPE) to derive the hydrodynamic equations for the gases. However, it is interesting to apply the hydrodynamic equations obtained by Yee for bosons. Many of the properties obtained for the dilute Bose gases are also consequences of Yee's hydrodynamic equations, which derive from a formalism distinct from that of the GPE. read more

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Quantum Gases