CNOT and bell-state analysis in the weak-coupling cavity QED regime

Cristian Bonato*, Florian Haupt, Sumant S. R. Oemrawsingh, Jan Gudat, Dapeng Ding, Martin P. van Exter, Dirk Bouwmeester

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

273 Citations (Scopus)

Abstract

We propose an interface between the spin of a photon and the spin of an electron confined in a quantum dot embedded in a microcavity operating in the weak-coupling regime. This interface, based on spin selective photon reflection from the cavity, can be used to construct a CNOT gate, a multiphoton entangler and a photonic Bell-state analyzer. Finally, we analyze experimental feasibility, concluding that the schemes can be implemented with current technology.

Original languageEnglish
Article number160503
JournalPhysical Review Letters
Volume104
Issue number16
DOIs
Publication statusPublished - 23 Apr 2010

ASJC Scopus subject areas

  • General Physics and Astronomy

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