Ralph, JF;
Oxtoby, NP;
(2011)
Quantum Filtering One Bit at a Time.
Physical Review Letters
, 107
(26)
, Article 260503. 10.1103/PhysRevLett.107.260503.
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Abstract
In this Letter we consider the purification of a quantum state using the information obtained from a continuous measurement record, where the classical measurement record is digitized to a single bit per measurement after the measurements have been made. Analysis indicates that efficient and reliable state purification is achievable for one- and two-qubit systems. We also consider quantum feedback control based on the discrete one-bit measurement sequences.
| Type: | Article |
|---|---|
| Title: | Quantum Filtering One Bit at a Time |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.107.260503 |
| Publisher version: | http://link.aps.org/doi/10.1103/PhysRevLett.107.26... |
| Language: | English |
| Additional information: | © 2011 American Physical Society date-added: 2012-10-05 15:43:08 +0100 date-modified: 2012-10-05 15:43:16 +0100 issue: 26 numpages: 5 bdsk-url-1: http://link.aps.org/doi/10.1103/PhysRevLett.107.260503 bdsk-url-2: http://dx.doi.org/10.1103/PhysRevLett.107.260503 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1366182 |
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