121 citations · 514 across the 50 of their papers we have counts for
6 papers · 2 filters
Regularly Decomposable Tensors and Classical Spin States
Liqun Qi, Guofeng Zhang, Daniel Braun +2
A spin- state can be represented by a symmetric tensor of order and dimension . Here, can be a positive integer, which corresponds to a boson; can also be a po…
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…
The Kalman Decomposition for Linear Quantum Stochastic Systems
Symeon Grivopoulos, Guofeng Zhang, Ian R. Petersen +1
The Kalman decomposition for Linear Quantum Stochastic Systems in the real quadrature operator representation, that was derived indirectly in [1] by the authors, is derived here di…
Dynamical analysis of quantum linear systems driven by multi-channel multi-photon states
Guofeng Zhang
In this paper, we investigate the dynamics of quantum linear systems where the input signals are multi-channel multi-photon states, namely states determined by a definite number of…
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…
The Kalman Decomposition for Linear Quantum Systems
Guofeng Zhang, Symeon Grivopoulos, Ian R. Petersen +1
This paper studies the Kalman decomposition for linear quantum systems. Contrary to the classical case, the coordinate transformation used for the decomposition must belong to a sp…