Exponentially faster preparation of quantum dimers via driven-dissipative stabilization
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866917532458287104 |
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| author | Lim, Kian Hwee Mok, Wai-Keong You, Jia-Bin Kong, Jian Feng Aghamalyan, Davit |
| author_facet | Lim, Kian Hwee Mok, Wai-Keong You, Jia-Bin Kong, Jian Feng Aghamalyan, Davit |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_12705 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Exponentially faster preparation of quantum dimers via driven-dissipative stabilization Lim, Kian Hwee Mok, Wai-Keong You, Jia-Bin Kong, Jian Feng Aghamalyan, Davit Quantum Physics 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. |
| title | Exponentially faster preparation of quantum dimers via driven-dissipative stabilization |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2309.12705 |