Enhanced quantum state transfer: Circumventing quantum chaotic behavior
- URL: http://arxiv.org/abs/2402.00936v1
- Date: Thu, 1 Feb 2024 19:00:03 GMT
- Title: Enhanced quantum state transfer: Circumventing quantum chaotic behavior
- Authors: Liang Xiang, Jiachen Chen, Zitian Zhu, Zixuan Song, Zehang Bao, Xuhao
Zhu, Feitong Jin, Ke Wang, Shibo Xu, Yiren Zou, Hekang Li, Zhen Wang, Chao
Song, Alexander Yue, Justine Partridge, Qiujiang Guo, Rubem Mondaini, H. Wang
and Richard T. Scalettar
- Abstract summary: We show how to transfer few-particle quantum states in a two-dimensional quantum network.
Our approach paves the way to short-distance quantum communication for connecting distributed quantum processors or registers.
- Score: 35.74056021340496
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The ability to realize high-fidelity quantum communication is one of the many
facets required to build generic quantum computing devices. In addition to
quantum processing, sensing, and storage, transferring the resulting quantum
states demands a careful design that finds no parallel in classical
communication. Existing experimental demonstrations of quantum information
transfer in solid-state quantum systems are largely confined to small chains
with few qubits, often relying upon non-generic schemes. Here, by using a
large-scale superconducting quantum circuit featuring thirty-six tunable
qubits, accompanied by general optimization procedures deeply rooted in
overcoming quantum chaotic behavior, we demonstrate a scalable protocol for
transferring few-particle quantum states in a two-dimensional quantum network.
These include single-qubit excitation and also two-qubit entangled states, and
two excitations for which many-body effects are present. Our approach, combined
with the quantum circuit's versatility, paves the way to short-distance quantum
communication for connecting distributed quantum processors or registers, even
if hampered by inherent imperfections in actual quantum devices.
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