dorsal/arxiv
View SchemaInformation-technology approach to quantum feedback control
| Authors | Dao-Yi Dong, Chen-Bin Zhang, Zong-Hai Chen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0503010 |
| URL | https://arxiv.org/abs/quant-ph/0503010 |
| DOI | 10.1142/S0217979206033942 |
| Journal | Int. J. Mod. Phys. B, 20(2006)1304-1316 |
Abstract
Quantum control theory is profitably reexamined from the perspective of quantum information, two results on the role of quantum information technology in quantum feedback control are presented and two quantum feedback control schemes, teleportation-based distant quantum feedback control and quantum feedback control with quantum cloning, are proposed. In the first feedback scheme, the output from the quantum system to be controlled is fed back into the distant actuator via teleportation to alter the dynamics of system. The result theoretically shows that it can accomplish some tasks such as distant feedback quantum control that Markovian or Bayesian quantum feedback can't complete. In the second feedback strategy, the design of quantum feedback control algorithms is separated into a state recognition step, which gives "on-off" signal to the actuator through recognizing some copies from the cloning machine, and a feedback (control) step using another copies of cloning machine. A compromise between information acquisition and measurement disturbance is established, and this strategy can perform some quantum control tasks with coherent feedback.
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"abstract": "Quantum control theory is profitably reexamined from the perspective of\nquantum information, two results on the role of quantum information technology\nin quantum feedback control are presented and two quantum feedback control\nschemes, teleportation-based distant quantum feedback control and quantum\nfeedback control with quantum cloning, are proposed. In the first feedback\nscheme, the output from the quantum system to be controlled is fed back into\nthe distant actuator via teleportation to alter the dynamics of system. The\nresult theoretically shows that it can accomplish some tasks such as distant\nfeedback quantum control that Markovian or Bayesian quantum feedback can\u0027t\ncomplete. In the second feedback strategy, the design of quantum feedback\ncontrol algorithms is separated into a state recognition step, which gives\n\"on-off\" signal to the actuator through recognizing some copies from the\ncloning machine, and a feedback (control) step using another copies of cloning\nmachine. A compromise between information acquisition and measurement\ndisturbance is established, and this strategy can perform some quantum control\ntasks with coherent feedback.",
"arxiv_id": "quant-ph/0503010",
"authors": [
"Dao-Yi Dong",
"Chen-Bin Zhang",
"Zong-Hai Chen"
],
"categories": [
"quant-ph"
],
"doi": "10.1142/S0217979206033942",
"journal_ref": "Int. J. Mod. Phys. B, 20(2006)1304-1316",
"title": "Information-technology approach to quantum feedback control",
"url": "https://arxiv.org/abs/quant-ph/0503010"
},
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