Stabilizing distinguishable qubits against spontaneous decay by detected jump correcting codes

G. Alber, Th. Beth, Ch. Charnes, A. Delgado, M. Grassl, M. Mussinger

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

A new class of error-correcting quantum codes is introduced capable of stabilizing qubits against spontaneous decay arising from couplings to statistically independent reservoirs. These quantum codes are based on the idea of using an embedded quantum code and exploiting the classical information available about which qubit has been affected by the environment. They are immediately relevant for quantum computation and information processing using arrays of trapped ions or nuclear spins. Interesting relations between these quantum codes and basic notions of design theory are established.
Original languageEnglish
Pages (from-to)4402-4405
Number of pages4
JournalPhysical Review Letters
Volume86
Issue number19
DOIs
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • quantum codes
  • cubits
  • design theory

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