Macroscopically distinct quantum-superposition states as a bosonic code for amplitude damping

Authors
Cochrane, PT Milburn, GJ Munro, WJ
Citation
Pt. Cochrane et al., Macroscopically distinct quantum-superposition states as a bosonic code for amplitude damping, PHYS REV A, 59(4), 1999, pp. 2631-2634
Citations number
13
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
59
Issue
4
Year of publication
1999
Pages
2631 - 2634
Database
ISI
SICI code
1050-2947(199904)59:4<2631:MDQSAA>2.0.ZU;2-W
Abstract
We show how macroscopically distinct quantum superposition states (Schrodin ger cat states) may be used as logical qubit encodings for the correction o f spontaneous emission errors. Spontaneous emission causes a bit flip error , which is easily corrected by a standard error correction circuit. The met hod works arbitrarily well as the distance between the amplitudes of the su perposed coherent states increases. [S1050-2947(99)06503-8].