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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

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Submission summary

Authors (as registered SciPost users): Peter Drummond · Piero Naldesi · Maxim Olshanii · Juan Polo
Submission information
Preprint Link: scipost_202210_00072v2  (pdf)
Date accepted: 2023-09-15
Date submitted: 2023-07-28 10:20
Submitted by: Naldesi, Piero
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • Atomic, Molecular and Optical Physics - Theory
  • Condensed Matter Physics - Theory
  • Quantum Physics
Approaches: Theoretical, Computational


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.

Author comments upon resubmission

With this letter, we would like to resubmit our manuscript "Massive particle interferometry with lattice solitons" to SciPost.

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

Published as SciPost Phys. 15, 187 (2023)

Reports on this Submission

Anonymous Report 1 on 2023-8-7 (Invited Report)


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".

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