Quantum random walk is the quantum counterpart of a classical random walk. The classical
random walk concept has long been used as a computational framework for designing …

Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …

Photonics is a promising platform for demonstrating a quantum computational advantage
(QCA) by outperforming the most powerful classical supercomputers on a well-defined …

The classical random walk formalism plays an important role in a wide range of applications.
Its quantum counterpart, the quantum walk, is proposed as an important theoretical model …

The development of universal quantum computers has achieved remarkable success in
recent years, culminating with the quantum supremacy reported by Google. Now it is …

The quantum walk (QW) has proven to be a valuable testbed for fundamental inquiries in
quantum technology applications such as quantum simulation and quantum search …

摘要量子精密测量作为当代量子力学的主要应用方面之一, 近些年来一直是量子科技的重要研究
和发展方向. 量子精密测量的主要研究目标是针对物理系统中的未知参数 …

We address metrological problems where the parameter of interest is encoded in the
internal degree of freedom of a discrete-time quantum walker, and provide evidence that …

The ability to apply user-chosen large-scale unitary operations with high fidelity to a
quantum state is key to realizing future photonic quantum technologies. Here, we realize the …

In real photonic quantum systems losses are an unavoidable factor limiting the scalability to
many modes and particles, restraining their application in fields as quantum information and …