Quantum Coherent Spin in Hexagonal Boron Nitride at Ambient Conditions

Report on the Study of Quantum Coherent Spins in Hexagonal Boron Nitride at Room Temperature Introduction The realization of quantum networks and sensors requires solid-state spin-photon interfaces that possess single-photon emission capabilities and long-lived spin coherence, which can be integrated into scalable devices. Ideally, these devices sh...

Sweet-spot operation of a germanium hole spin qubit with highly anisotropic noise sensitivity

Sweet-spot operation of a germanium hole spin qubit with highly anisotropic noise sensitivity

Optimal Working Point of Heavy Hole Spin Qubit in Germanium and Its High Anisotropic Noise Sensitivity Background and Motivation The development of quantum computers holds great promise for solving complex problems. However, building a fault-tolerant quantum computer requires the integration of a large number of highly coherent qubits. Spin qubits,...

A Programmable Topological Photonic Chip

A Programmable Topological Photonic Chip

Research Progress on Programmable Topological Photonic Chips Research Background In recent years, topological insulators (TI) have garnered significant attention in the physics community due to their rich physical mechanisms and the potential applications of topological boundary modes, leading to rapid development in this field. Since the discovery...

Efficient Learning of Accurate Surrogates for Simulations of Complex Systems

This research proposes an online learning method for efficiently constructing surrogate models that can accurately emulate complex systems. The method consists of three key components: Sampling strategy for generating new training and testing data; Learning strategy for generating candidate surrogate models based on the training data; Validation me...