7 papers
Symplectic H2 Model Reduction for High-Dimensional Linear Quantum Systems
Alfo Borzi, Guofeng Zhang
The model reduction problem for high-dimensional linear quantum systems is studied under the constraint of physical realizability (PR). This constraint requires pre…
On Realization of Back-Action-Evading Measurements and Quantum Non-Demolition Variables via Linear Systems Engineering
Zhiyuan Dong, Weichao Liang, Guofeng Zhang
We establish a framework for realizing back-action-evading (BAE) measurements and quantum non-demolition (QND) variables in linear quantum systems. The key condition, a purely imag…
Coherent feedback control of quantum linear systems
Guofeng Zhang, Ian R. Petersen
The purpose of this paper is to investigate the coherent feedback control problem for linear quantum systems. A key contribution is a simplified design methodology that…
Optimal filtering for a giant cavity in waveguide QED systems
Guangpu Wu, Shibei Xue, Yuting Zhu +2
In waveguide quantum electrodynamics (QED) systems, a giant cavity can be engineered to interact with quantum fields by multiple distant coupling points so that its non-Markovian d…
Back-Action-Evading Measurements and Quantum Non-Demolition Variables via Linear Systems Engineering
Zhiyuan Dong, Weichao Liang, Guofeng Zhang
We establish a framework for realizing back-action-evading (BAE) measurements and quantum non-demolition (QND) variables in linear quantum systems. The key condition, a purely imag…
Model Reduction for Augmented Model of Linear Non-Markovian Quantum Systems
Guangpu Wu, Shibei Xue, Guofeng Zhang +3
An augmented system model provides an effective way to model non-Markovian quantum systems, which is useful in filtering and control for this class of systems. However, since a lar…