18 citations · 28 across the 13 of their papers we have counts for
14 papers
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…
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…
Linear quantum systems: poles, zeros, invertibility and sensitivity
Zhiyuan Dong, Guofeng Zhang, Heung-wing Joseph Lee +1
The non-commutative nature of quantum mechanics imposes fundamental constraints on system dynamics, which, in the linear realm, are manifested through the physical realizability co…
On Poles and Zeros of Linear Quantum Systems
Zhiyuan Dong, Guofeng Zhang, Heung-wing Joseph Lee
The non-commutative nature of quantum mechanics imposes fundamental constraints on system dynamics, which in the linear realm are manifested by the physical realizability condition…
The Quantum Kalman Decomposition: A Gramian Matrix Approach
Guofeng Zhang, Jinghao Li, Zhiyuan Dong +1
The Kalman canonical form for quantum linear systems was derived in \cite{ZGPG18}. The purpose of this paper is to present an alternative derivation by means of a Gramian matrix ap…
Linear quantum systems: a tutorial
Guofeng Zhang, Zhiyuan Dong
The purpose of this tutorial is to give a brief introduction to linear quantum control systems. The mathematical model of linear quantum control systems is presented first, then so…
On the Dynamics of the Tavis-Cummings Model
Zhiyuan Dong, Guofeng Zhang, Ai-Guo Wu +1
The purpose of this paper is to present a comprehensive study of the Tavis-Cummings model from a system-theoretic perspective. A typical form of the Tavis-Cummings model is compose…
On the dynamics of a quantum coherent feedback network of cavity-mediated double quantum dot qubits
Zhiyuan Dong, Wei Cui, Guofeng Zhang
The purpose of this paper is to present a comprehensive study of a coherent feedback network where the main component consists of two distant double quantum dot (DQD) qubits which…
Quantum filtering for a two-level atom driven by two counter-propagating photons
Zhiyuan Dong, Guofeng Zhang, Nina H. Amini
The purpose of this paper is to propose quantum filters for a two-level atom driven by two continuous-mode counter-propagating photons and under continuous measurements. Two scenar…
Single-photon quantum filtering with multiple measurements
Zhiyuan Dong, Guofeng Zhang, Nina H. Amini
The single-photon quantum filtering problems have been investigated recently with applications in quantum computing. In practice, the detector responds with a quantum efficiency of…
On the response of a two-level system to two-photon inputs
Zhiyuan Dong, Guofeng Zhang, Nina H. Amini
The purpose of this paper is to study the interaction between a two-level system and two continuous-mode photons. Two scenarios are investigated: Case 1, how a two-level system cha…
Mixed LQG and Coherent Feedback Control for Linear Quantum Systems
Lei Cui, Zhiyuan Dong, Guofeng Zhang +1
The purpose of this paper is to study the mixed linear quadratic Gaussian (LQG) and optimal control problem for linear quantum stochastic systems, where the controller i…
Wigner spectrum and coherent feedback control of continuous-mode single-photon Fock states
Zhiyuan Dong, Lei Cui, Guofeng Zhang +1
Single photons are very useful resources in quantum information science. In real applications it is often required that the photons have a well-defined spectral (or equivalently te…
Quantum filtering for multiple measurements driven by fields in single-photon states
Zhiyuan Dong, Guofeng Zhang, Nina H. Amini
In this paper, we derive the stochastic master equations for quantum systems driven by a single-photon input state which is contaminated by quantum vacuum noise. To improve estimat…