Effective Spin Systems in Coupled Microcavities

Michael J. Hartmann*, Fernando G. S. L. Brandão, Martin B. Plenio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

169 Citations (Scopus)


We show that atoms trapped in microcavities that interact via the exchange of virtual photons can model an anisotropic Heisenberg spin-1/2 lattice in an external magnetic field. All parameters of the effective Hamiltonian can individually be tuned via external lasers. Since the occupations of excited atomic levels and photonic states are strongly suppressed, the effective model is robust against decoherence mechanisms, has a long lifetime, and its implementation is feasible with current experimental technology. The model provides a feasible way to create cluster states in these devices.

Original languageEnglish
Article number160501
JournalPhysical Review Letters
Issue number16
Publication statusPublished - 15 Oct 2007

ASJC Scopus subject areas

  • General Physics and Astronomy


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