Quantum Sensing of Phenomena under Extreme Conditions (PI: Prof. Sen YANG) Extreme conditions like ultra-low temperatures and high magnetic fields are frequently required for the elimination of thermal noise and fluctuations to unravel the underlying intrinsic physics. For example, cooling down solid state quantum computing nodes made of point defect or dopant to tens of milli-Kelvin temperatures will quench the relaxation channels which hamper intrinsic long decoherence time and manipulate coupling with photon and phonon fields in a controlled manner; and the pairing of the electrons when a given quantum material undergoes. Furthermore, pressure is a clean, continuous, and systematic tuning parameter among the competing ground states in strongly correlated electron systems such as superconductivity and magnetism. Sensing with qubits and novel quantum measurement techniques can provide higher resolution and sensibility. In this project, Prof. Sen Yang and his team use qubit based on point defect in diamond to realize sensing under extreme conditions. 24
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