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arXiv · 2309.12705

Exponentially faster preparation of quantum dimers via driven-dissipative stabilization

Kian Hwee Lim·Wai-Keong Mok·Jia-Bin You·Jian Feng Kong·Davit Aghamalyan
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Abstract

We propose a novel 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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Kian Hwee Lim, Wai-Keong Mok, Jia-Bin You, Jian Feng Kong, Davit Aghamalyan. 2023-09-22. Exponentially faster preparation of quantum dimers via driven-dissipative stabilization. https://doi.org/10.1103/physrevresearch.6.l032047

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