CORRECTING THE EFFECTS OF SPONTANEOUS EMISSION ON COLD-TRAPPED IONS

Authors
DHELON C MILBURN GJ
Citation
C. Dhelon et Gj. Milburn, CORRECTING THE EFFECTS OF SPONTANEOUS EMISSION ON COLD-TRAPPED IONS, Physical review. A, 56(1), 1997, pp. 640-644
Citations number
16
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
56
Issue
1
Year of publication
1997
Pages
640 - 644
Database
ISI
SICI code
1050-2947(1997)56:1<640:CTEOSE>2.0.ZU;2-5
Abstract
We propose two quantum error-correction schemes which increase the max imum storage time for qubits in a system of cold-trapped ions, using a minimal number of ancillary qubits. Both schemes consider only the er rors introduced by the decoherence due to spontaneous emission from th e upper levels of the ions. Continuous monitoring of the ion fluoresce nce is used in conjunction with selective coherent feedback to elimina te these errors immediately following spontaneous emission events.