Lihua Sun

TL;DR: This work reports the development and launch of a low-Earth-orbit satellite for implementing decoy-state QKD—a form ofQKD that uses weak coherent pulses at high channel loss and is secure because photon-number-splitting eavesdropping can be detected.

TL;DR: Zuchongzhi as mentioned in this paper is a two-dimensional programmable superconducting quantum processor, which is composed of 66 functional qubits in a tunable coupling architecture, and performs random quantum circuits sampling for benchmarking.

TL;DR: The demonstration of quantum walks on a quantum processor, using superconducting qubits as artificial atoms and tomographic readout, paves the way to quantum simulation of many-body phenomena and universal quantum computation.

TL;DR: The preparation and verification of a genuine 12-qubit entanglement in a superconducting processor and the entangling circuit to generate linear cluster states is depth invariant in the number of qubits and uses single- and double- qubit gates instead of collective interactions.

TL;DR: In this article, an 8-by-8 two-dimensional square superconducting qubit array composed of 62 functional qubits was used to demonstrate high-fidelity single and two-particle quantum walks.