Luming Duan

Experimental realization of secure multi-party computation in an entanglement access to network

2015 · arXiv (Cornell University)

To construct a quantum network with many end users, it is critical to have a cost-efficient way to distribute entanglement over different network ends. We demonstrate an entanglement access network, where the expensive resource, the …

A twofold quantum delayed-choice experiment in a superconducting circuit

2017 · Science Advances

Wave-particle complementarity lies at the heart of quantum mechanics. To illustrate this mysterious feature, Wheeler proposed the delayed-choice experiment, where a quantum system manifests the wave- or particle-like attribute, depending on the experimental arrangement, which …

Quantum switch for itinerant microwave single photons with superconducting quantum circuits

2024 · Physical Review Applied

A classical switch or router determines which of several inputs to the device passes through the output. In analogy, a quantum switch that coherently links the input to a superposition of several outputs plays an …

Scalable low-overhead superconducting nonlocal coupler for circuit connectivity enhancement

2026 · Physical Review Applied

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. These codes are not applicable on current superconducting devices with nearest-neighbor connections. …

Realization of a functioning dual-type trapped-ion quantum network node

2025 · Science Advances

Trapped ions constitute a promising platform for implementation of a quantum network. Recently, a dual-type qubit scheme has been realized in a quantum network node where communication qubits and memory qubits are encoded in different …