5 papers · 1 filter
Experimental demonstration of entanglement pumping with bosonic logical qubits
Jie Zhou, Chuanlong Ma, Yifang Xu +9
Entanglement is crucial for quantum networks and computation, yet maintaining high-fidelity entangled quantum states is hindered by decoherence and resource-intensive purification…
Global Parametric Gates for Multi-qubit Entanglement
Jize Yang, Lin Guo, Haonan Xiong +8
We propose and experimentally demonstrate a global parametric gate that generates multi-qubit entangled states in a single step. By applying a parametric drive to a common qubit at…
Scalable Low-overhead Superconducting Non-local Coupler with Exponentially Enhanced Connectivity
Haonan Xiong, Jiahui Wang, Juan Song +8
Quantum error correction codes with non-local connections such as quantum low-density parity-check (qLDPC) incur lower overhead and outperform surface codes on large-scale devices.…
A cryogenic on-chip microwave pulse generator for large-scale superconducting quantum computing
Zenghui Bao, Yan Li, Zhiling Wang +7
For superconducting quantum processors, microwave signals are delivered to each qubit from room-temperature electronics to the cryogenic environment through coaxial cables. Limited…
Unambiguous discrimination of general quantum operations
Weizhou Cai, Jing-Ning Zhang, Ziyue Hua +10
The discrimination of quantum operations has long been an intriguing challenge, with theoretical research significantly advancing our understanding of the quantum features in discr…