138
Manifestation of superfluidity in an evolving bose - einstein condensed Gas We study the generation of excitations due to an " impurity " ( static perturbation ) placed into an oscillating Bose - Einstein condensed gas in the time - dependent trapping field .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None