5 papers
Control-centric quantum noise spectroscopy of time-ordered polyspectra
Kaiah Steven, Elliot Coupe, Qi Yu +1
Precise environmental-noise characterisation in open quantum systems is a key step toward high-fidelity quantum control and targeted decoherence suppression in computing and sensin…
Model-free Quantum Gate Design and Calibration using Deep Reinforcement Learning
Omar Shindi, Qi Yu, Parth Girdhar +1
High-fidelity quantum gate design is important for various quantum technologies, such as quantum computation and quantum communication. Numerous control policies for quantum gate d…
Simultaneous estimation of parameters and the state of an optical parametric oscillator system
Qi Yu, Shota Yokoyama, Daoyi Dong +2
In this paper, we consider the filtering problem of an optical parametric oscillator (OPO). The OPO pump power may fluctuate due to environmental disturbances, resulting in uncerta…
On the capability of a class of quantum sensors
Qi Yu, Yuanlong Wang, Daoyi Dong +1
Quantum sensors may provide extremely high sensitivity and precision to extract key information in a quantum or classical physical system. A fundamental question is whether a quant…
Hybrid Filtering for a Class of Quantum Systems with Classical Disturbances
Qi Yu, Daoyi Dong, Ian R. Petersen +1
A filtering problem for a class of quantum systems disturbed by a classical stochastic process is investigated in this paper. The classical disturbance process, which is assumed to…