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4 papers · 2 filters
Observation of parity-time symmetry breaking in a single spin system
Yang Wu, Wenqiang Liu, Jianpei Geng +5
A fundamental axiom of quantum mechanics requires the Hamiltonians to be Hermitian which guarantees real eigen-energies and probability conservation. However, a class of non-Hermit…
Room-temperature Composite-pulses for Robust Diamond Magnetometry
Jing-Yan Xu, Yang Dong, Shao-Chun Zhang +6
The sensitivity of a practical quantum magnetometer is challenged by both inhomogeneous coupling between sensors and environment and errors in quantum control. Based on the physica…
Uncertainty-Complementarity Balance as a General Constraint on Non-locality
Liang-Liang Sun, Sixia Yu, Zeng-Bing Chen
We propose an uncertainty-complementarity balance relation and build quantitative connections among non-locality, complementarity, and uncertainty. Our balance relation, which is f…
Emergence of Classical Objectivity of Quantum Darwinism in a Photonic Quantum Simulator
Ming-Cheng Chen, Han-Sen Zhong, Yuan Li +6
Quantum-to-classical transition is a fundamental open question in physics frontier. Quantum decoherence theory points out that the inevitable interaction with environment is a sink…