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  • Letter
  • Open Access

Exponentially faster preparation of quantum dimers via driven-dissipative stabilization

Kian Hwee Lim1,*,†, Wai-Keong Mok2,*, Jia-Bin You3, Jian Feng Kong3, and Davit Aghamalyan3

  • *These authors contributed equally to this work.
  • †Contact author: kianhwee_lim@u.nus.edu
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Phys. Rev. Research 6, L032047 – Published 29 August, 2024

DOI: https://doi.org/10.1103/PhysRevResearch.6.L032047

Abstract

We propose a rapid, high-fidelity, and noise-resistant scheme to generate many-body entanglement between multiple qubits stabilized by dissipation into a 1D bath. Using a carefully designed time-dependent drive, our scheme achieves a provably exponential speedup over state-of-the-art dissipative stabilization schemes in 1D baths, which require a timescale that diverges as the target fidelity approaches unity and scales exponentially with the number of qubits. To prepare quantum dimer pairs, our scheme only requires local 2-qubit control Hamiltonians, with a protocol time that is independent of system size. This provides a scalable and robust protocol for generating a large number of entangled dimer pairs on-demand, serving as a fundamental resource for many quantum metrology and quantum information processing tasks.

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Phys. Rev. Research 6, L032047– Published 29 August, 2024
  • Received 3 November 2023
  • Revised 5 April 2024
  • Accepted 23 July 2024
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