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Massive particle interferometry with lattice solitons
by Piero Naldesi, Juan Polo, Peter D. Drummond, Vanja Dunjko, Luigi Amico, Anna Minguzzi and Maxim Olshanii
This Submission thread is now published as
|Authors (as registered SciPost users):||Peter Drummond · Piero Naldesi · Maxim Olshanii · Juan Polo|
|Preprint Link:||scipost_202210_00072v2 (pdf)|
|Date submitted:||2023-07-28 10:20|
|Submitted by:||Naldesi, Piero|
|Submitted to:||SciPost Physics|
We discuss an interferometric scheme employing interference of bright solitons formed as specific bound states of attracting bosons on a lattice. We revisit the proposal of Castin and Weiss [Phys. Rev. Lett. vol. 102, 010403 (2009)] for using the scattering of a quantum matter-wave soliton on a barrier in order to create a coherent superposition state of the soliton being entirely to the left of the barrier and being entirely to the right of the barrier. In that proposal, it was assumed that the scattering is perfectly elastic, i.e., the soliton's center-of-mass kinetic energy is lower than the chemical potential of the soliton. Here we relax this assumption: By employing a combination of Bethe ansatz and DMRG-based analysis of the dynamics of the appropriate many-body system, we find that the interferometric fringes persist even when the center-of-mass kinetic energy of the soliton is above the energy needed for its complete dissociation into constituent atoms.
Published as SciPost Phys. 15, 187 (2023)
Author comments upon resubmission
We thank the Referees very much for their careful reading of our manuscript and for their positive comments which are answered in the following. We have updated the main text following their suggestions. We are confident that now the manuscript is ready for being published.
Yours Sincerely, Piero Naldesi, Juan Polo, Peter D. Drummond, Vanja Dunjko, Luigi Amico, Anna Minguzzi, and Maxim Olshanii
List of changes
Besides many small changes to improve the readability of the manuscript, we have discussed two main topics:
1) Number of particles postselection to reduce shot-to-shot errors
2) Influence of the dimensionality on the protocol's sensitivity
Submission & Refereeing History
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Reports on this Submission
I am satisfied with the authors' answers to my questions. Now it is clear that the paper satisfies the acceptance criteria of SciPost Phys. and can be surely published.
A very small editorial comment. In the newly added text in the Section "Conclusions", the words "For larger particles" should be changed to "For larger numbers of particles" or "For more particles".