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  • Letter
  • Open Access

Fast and direct preparation of a genuine lattice Bose-Einstein condensate via the quantum Mpemba effect

Philipp Westhoff1,*, Sebastian Paeckel1,†, and Mattia Moroder2,‡

  • *Contact author: p.westhoff@physik.uni-muenchen.de
  • †Contact author: sebastian.paeckel@physik.uni-muenchen.de
  • ‡Contact author: moroderm@tcd.ie
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Phys. Rev. A 112, L061304 – Published 22 December, 2025

DOI: https://doi.org/10.1103/nm4b-9w5c

Abstract

We demonstrate that dissipative state preparation protocols in many-body systems can be substantially accelerated via the quantum Mpemba effect. Our approach exploits weak symmetries to analytically identify a class of simple, experimentally realizable states that converge exponentially faster to the steady state than typical random initializations. In particular, we study the preparation of a lattice Bose-Einstein condensate (BEC), where the depletion can be controlled via the dissipation strength. We also show how to tune the momentum of the created high-fidelity BEC by combining superfluid immersion with lattice shaking. Our theoretical predictions are confirmed by numerical simulations of the dissipative dynamics. This protocol paves the way to unlock the enormous potential of the dissipative preparation of highly entangled states in analog quantum simulators.

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Outline

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Phys. Rev. A 112, L061304– Published 22 December, 2025
  • Received 3 June 2025
  • Revised 8 October 2025
  • Accepted 24 November 2025
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