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Magnon squeezing in the quantum regime
Yuan-Chao Weng, Da Xu, Zhen Chen +8
Squeezed states, crucial for quantum metrology and emerging quantum technologies, have been demonstrated in various platforms, but quantum squeezing of magnons in macroscopic spin…
Giant-atom quantum acoustodynamics in hybrid superconducting-phononic integrated circuits
Lintao Xiao, Bo Zhang, Yu Zeng +11
We demonstrate a giant atom by coupling a superconducting transmon qubit to a lithium niobate phononic waveguide at two points separated by about 600 acoustic wavelengths, with a p…
Circuit Quantum Acoustodynamics in a Scalable Phononic Integrated Circuit Architecture
Weiting Wang, Lintao Xiao, Bo Zhang +11
Previous demonstrations of quantum acoustic systems have been limited to isolated devices, with limited capability to route phonons and interconnect multi-port acoustic elements fo…
High-Fidelity Controlled-Phase Gate for Binomial Codes via Geometric Phase Engineering
Yifang Xu, Yilong Zhou, Lida Sun +12
High-fidelity two-logical-qubit gates are essential for realizing fault-tolerant quantum computation with bosonic codes, yet experimentally reported fidelities have rarely exceeded…
Extending coherence time beyond break-even point using only drives and dissipation
Lida Sun, Yifang Xu, Yilong Zhou +11
Quantum error correction (QEC) aims to mitigate the loss of quantum information to the environment, which is a critical requirement for practical quantum computing. Existing QEC im…
Many-body delocalization with a two-dimensional 70-qubit superconducting quantum simulator
Tian-Ming Li, Zheng-Hang Sun, Yun-Hao Shi +35
Quantum many-body systems with sufficiently strong disorder can exhibit a non-equilibrium phenomenon, known as the many-body localization (MBL), which is distinct from conventional…