SciPost Submission Page
Matter Wave Isotope Separation in a Ring Trap
by Sriganapathy Raghav, Suranjana Ghosh, Barun Halder and Utpal Roy
This is not the latest submitted version.
Submission summary
| Authors (as registered SciPost users): | Utpal Roy |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202309_00020v1 (pdf) |
| Date submitted: | 2023-09-18 15:31 |
| Submitted by: | Roy, Utpal |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
|
| Approach: | Theoretical |
Abstract
We devise a novel mechanism of isotope separation from a mixture of Bose-Einstein condensate in the presence of interspecies interaction. Fractional revivals of this miscible system are studied inside a ring waveguide for spatially resolving the isotopes of $Rb$. The characteristic time scale is influenced by the ring radius and the strength of interspecies interaction. We identify the physical parameters for which the autocorrelation function displays the signature of distinguishability. A study of the separability function further suggests favourable time instances for separating the isotopes with greater yields. The precise ranges of ring radius and interspecies interaction strength are revealed. We illustrate condensate densities at proposed time instances, which confirms our results and also validates our method.
Current status:
Reports on this Submission
Report
The paper reports theoretical results which may be usable for practical applications to the important problem of the isotope separation in binary BEC trapped in an annular potential. Systematic simulations of the evolution of the azimuthal density profiles are performed with actual physical parameters of the mixture, and optimal parameter regions are identified. The results are appropriate for the publication, provided that some essential points will be clarified.
First, it is correctly indicated that effective coefficients of the nonlinear interactions cab be adjusted by means of the Feshbach resonance (FR). Then, it will be quite relevant to produce a parameter chart similar to Fig. 6 in which one control parameter will be the strength of the magnetic field which controls the FR.
Next, it would be quite relevant to compare the results reported in the paper for the 2D model with what can be produced by the 1D equations in the limit of an infinitely thin ring. I assume it is not too difficult to add some results of the simulations of the 1D system.
Finally, as an optional recommendation, it might be quite interesting to extend these results for the case when vorticity imparted onto one or both components of the mixture.
Author: Utpal Roy on 2024-01-17 [id 4257]
(in reply to Report 1 on 2024-01-06)We would like to extend our sincere thanks to the reviewer for appreciating the importance and experimental relevance of our work and also for giving important suggestions. We have made the appropriate changes in the revised manuscript as per the Reviewer’s comments.
The point-wise reply and a list of changes in the manuscript are attached herewith (Reviewer_Reply_Isotope_Separation.pdf).
Attachment:
Reviewer_Reply_Isotope_Separation.pdf