Sen Yang research lab
Department of Physics, The Chinese University of Hong Kong
Research highlights
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A universal method for depositing patterned materials in-situ
The core of high-performance chip manufacturing is to pattern microscale and nanoscale material structures with high precision. We proposed and developed a single step laser direct writing technology. This method significantly simplifies electronics fabrication, especially for making quantum technology chips, flexible device and repairing circuits.
Quantum sensing of superconductivity in extreme conditions
Material properties can change dramatically under pressure. We developed monitoring techniques based on nitrogen-vacancy (NV) centers in diamond. The NV centers can act as sensors because their energy levels and the associated spectra are sensitive to strain and magnetic fields. This enabled optical readout of a spatially resolved signal.
Coherent photon states storage in a single nuclear spin in diamond
Long distance quantum communication requires photons and quantum nodes that comprise qubits for interaction with light, good memory capabilities and processing qubits for storage and manipulation of photons. Here, we demonstrate a high fidelity (~98%) coherent transfer of a photon polarisation state to a single solid state nuclear spin that has a coherence time of over 10 seconds. This nuclear spin based optical quantum memory demonstrated here paves the way towards an absorption based quantum repeater network.
contact us:
- 香港特別行政區、新界、沙田、香港中文大學物理系
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- (852) 39431122
- (852) 26035204
- senyang(at)phy(dot)cuhk(dot)edu(dot)hk
- © Sen Yang, Department of Physics, CUHK. All rights reserved.