The Holy Grail of Quantum Artificial Intelligence: Major Challenges in Accelerating the Machine Learning Pipeline

Can we detect the quantum nature of weak gravitational fields?

A theoretical framework for the quantization of gravity has been an elusive Holy Grail since the birth of quantum theory and general relativity. While generations of scientists have attempted solutions to this deep riddle, an alternative path built upon the idea that experimental evidence could determine whether gravity is quantized has been decades in the making. The possibility of an experimental answer to the question of the quantization of gravity is of renewed interest in the era of gravitational wave detectors. We review and investigate an important subset of phenomenological quantum gra…

Electronic Structure Calculations and the Ising Hamiltonian

The exact solution of the Schrodinger equation for atoms, molecules and extended systems continues to be a "Holy Grail" problem for the field of atomic and molecular physics since inception. Recently, breakthroughs have been made in the development of hardware- efficient quantum optimizers and coherent Ising machines capable of simulating hundreds of interacting spins through an Ising-type Hamiltonian. One of the most vital questions associated with these new devices is: "Can these machines be used to perform electronic structure calculations?" In this study, we discuss the general standard pr…

Challenges in Open-air Microwave Quantum Communication and Sensing

Quantum communication is a holy grail to achieve secure communication among a set of partners, since it is provably unbreakable by physical laws. Quantum sensing employs quantum entanglement as an extra resource to determine parameters by either using less resources or attaining a precision unachievable in classical protocols. A paradigmatic example is the quantum radar, which allows one to detect an object without being detected oneself, by making use of the additional asset provided by quantum entanglement to reduce the intensity of the signal. In the optical regime, impressive technological…

量子中继器：从量子网络到量子互联网

Quantum repeaters: From quantum networks to the quantum internet

本文综述量子中继器的概念框架、架构与实验进展，旨在克服量子信道损耗噪声，突破点对点通信速率限制，推动量子互联网的实现。

量子解码算法：优化中的量子加速

Quantum Decoding Algorithms: Quantum Speedups in Optimization

本文介绍Decoded Quantum Interferometry算法，通过结合编码理论和干涉度量技术，实现对max-LINSAT优化问题的超多项式加速。