Feedback control of quantum entanglement in a two-spin system
Automatica (Journal of IFAC)
Eigenpath traversal by phase randomization
Quantum Information & Computation
Sliding mode control of two-level quantum systems
Automatica (Journal of IFAC)
Non-smooth Lyapunov function-based global stabilization for quantum filters
Automatica (Journal of IFAC)
Quantum Measurement-Based Feedback Control: A Nonsmooth Time Delay Control Approach
SIAM Journal on Control and Optimization
Notes on sliding mode control of two-level quantum systems
Automatica (Journal of IFAC)
Generation of steady three- and four-dimensional entangled states via quantum-jump-based feedback
Quantum Information Processing
Minimal resources identifiability and estimation of quantum channels
Quantum Information Processing
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We propose a general framework for investigating a large class of stabilization problems in Markovian quantum systems. Building on the notions of invariant and attractive quantum subsystem, we characterize attractive subspaces by exploring the structure of the invariant sets for the dynamics. Our general analysis results are exploited to assess the ability of open-loop Hamiltonian and output-feedback control strategies to synthesize Markovian generators which stabilize a target subsystem, subspace, or pure state. In particular, we provide an algebraic characterization of the manifold of stabilizable pure states in arbitrary finite-dimensional Markovian systems, that leads to a constructive strategy for designing the relevant controllers. Implications for stabilization of entangled pure states are addressed by example.