3.3k citations · 16.3k across the 118 of their papers we have counts for
9 papers · 1 filter
Quantum natural gradient generalised to noisy and non-unitary circuits
Bálint Koczor, Simon C. Benjamin
Variational quantum algorithms are promising tools whose efficacy depends on their optimisation method. For noise-free unitary circuits, the quantum generalisation of natural gradi…
QuESTlink -- Mathematica embiggened by a hardware-optimised quantum emulator
Tyson Jones, Simon C Benjamin
We introduce QuESTlink, pronounced "quest link", an open-source Mathematica package which efficiently emulates quantum computers. By integrating with the Quantum Exact Simulation T…
Variational circuit compiler for quantum error correction
Xiaosi Xu, Simon C. Benjamin, Xiao Yuan
Quantum error correction is vital for implementing universal quantum computing. A key component is the encoding circuit that maps a product state of physical qubits into the encode…
Variational algorithms for linear algebra
Xiaosi Xu, Jinzhao Sun, Suguru Endo +3
Quantum algorithms have been developed for efficiently solving linear algebra tasks. However, they generally require deep circuits and hence universal fault-tolerant quantum comput…
Variational-State Quantum Metrology
Bálint Koczor, Suguru Endo, Tyson Jones +2
Quantum technologies exploit entanglement to enhance various tasks beyond their classical limits including computation, communication and measurements. Quantum metrology aims to in…
Experimental exploration of five-qubit quantum error correcting code with superconducting qubits
Ming Gong, Xiao Yuan, Shiyu Wang +19
Quantum error correction is an essential ingredient for universal quantum computing. Despite tremendous experimental efforts in the study of quantum error correction, to date, ther…
Mitigating Coherent Noise Using Pauli Conjugation
Zhenyu Cai, Xiaosi Xu, Simon C. Benjamin
Coherent noise can be much more damaging than incoherent (probabilistic) noise in the context of quantum error correction. One solution is to use twirling to turn coherent noise in…
Demonstration of Adiabatic Variational Quantum Computing with a Superconducting Quantum Coprocessor
Ming-Cheng Chen, Ming Gong, Xiao-Si Xu +15
Adiabatic quantum computing enables the preparation of many-body ground states. This is key for applications in chemistry, materials science, and beyond. Realisation poses major ex…
A Silicon Surface Code Architecture Resilient Against Leakage Errors
Zhenyu Cai, Michael A. Fogarty, Simon Schaal +3
Spin qubits in silicon quantum dots are one of the most promising building blocks for large scale quantum computers thanks to their high qubit density and compatibility with the ex…