Structure factor for a Bose fluid |
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Authors: | KM Khanna OP Sinha |
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Institution: | Department of Applied Physics, Birla Institute of Technology, Mesra-835215, Ranchi, India |
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Abstract: | The structure factor is calculated for a Bose fluid using an expression for S(k), which is approximately valid for all values of k. Marked fluctuations appear for , near the roton dip in Ek, and at near the dip in the second branch of Ek. Our calculations are indirectly a theoretical justification for the existence of a second branch in Ek. The results presented here agree fairly well with the experimental values for along with a dip at which has not been reported earlier. It also suggests the existence of two waves, phonons and rotons, for . |
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