Applications of Feedback Control in Quantum Systems
arXiv:quant-ph/0605015
Abstract
We give an introduction to feedback control in quantum systems, as well as an overview of the variety of applications which have been explored to date. This introductory review is aimed primarily at control theorists unfamiliar with quantum mechanics, but should also be useful to quantum physicists interested in applications of feedback control. We explain how feedback in quantum systems differs from that in traditional classical systems, and how in certain cases the results from modern optimal control theory can be applied directly to quantum systems. In addition to noise reduction and stabilization, an important application of feedback in quantum systems is adaptive measurement, and we discuss the various applications of adaptive measurements. We finish by describing specific examples of the application of feedback control to cooling and state-preparation in nano-electro-mechanical systems and single trapped atoms.
Plenary paper for ASCC06. Gives an introductory review of the field
References in corpus (29)
- Feedback-control of quantum systems using continuous state-estimation
- Quantum feedback control and classical control theory
- Feedback control of quantum state reduction
- Optomechanical Cooling of a Macroscopic Oscillator by Homodyne Feedback
- Adaptive homodyne measurement of optical phase
- Continuous quantum error correction via quantum feedback control
- Feedback cooling of a single trapped ion
- Feedback cooling of a nanomechanical resonator
- Spin squeezing via quantum feedback
- Quantum Feedback Control of Atomic Motion in an Optical Cavity
- Capture and release of a conditional state of a cavity QED system by quantum feedback
- Risk-Sensitive Optimal Control of Quantum Systems
- Squeezing of a nanomechanical resonator by quantum nondemolition measurement and feedback
- Robust quantum parameter estimation: coherent magnetometry with feedback
- Information, disturbance and Hamiltonian quantum feedback control
- How to project qubits faster using quantum feedback
- A practical scheme for error control using feedback
- Adaptive Quantum Measurements of a Continuously Varying Phase
- Distinguishing between optical coherent states with imperfect detection
- The noise in gravitational-wave detectors and other classical-force measurements is not influenced by test-mass quantization
- Bellman equations for optimal feedback control of qubit states
- Suppression of Spin Projection Noise in Broadband Atomic Magnetometry
- Feedback cooling of atomic motion in cavity QED
- Sensitivity optimization in quantum parameter estimation
- Single-shot measurement of quantum optical phase
- Adaptive phase estimation is more accurate than non-adaptive phase estimation for continuous beams of light
- Quantum error correction for continuously detected errors with any number of error channels per qubit
- Guidance and Control in a Josephson Charge Qubit
- Topics in Quantum Measurement and Quantum Noise