Effective spin systems in coupled micro-cavities

Abstract

We show that atoms trapped in micro-cavities that interact via exchange of virtual photons can model an anisotropic Heisenberg spin-1/2 chain in an external magnetic field. All parameters of the effective Hamiltonian can individually be tuned via external lasers. Since the occupation 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.

5 pages, 4 figures

References in corpus (5)

• Quantum nature of a strongly-coupled single quantum dot-cavity system
• Strongly Interacting Polaritons in Coupled Arrays of Cavities
• Novel schemes for measurement-based quantum computation
• Strong photon non-linearities and photonic Mott insulators
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Cited by in corpus (20)

• Quantum Many-Body Phenomena in Coupled Cavity Arrays
• Fractional Quantum Hall State in Coupled Cavities
• Dynamics in a coupled-cavity array
• Theory of ground state factorization in quantum cooperative systems
• Separability and ground state factorization in quantum spin systems
• Quantum phase transitions in photonic cavities with two-level systems
• Quantum-information transfer in a coupled resonator waveguide
• Simulation of high-spin Heisenberg models in coupled cavities
• Reproducing spin lattice models in strongly coupled atom-cavity systems
• Long-distance entanglement and quantum teleportation in coupled cavity arrays
• Quantum Phase Transitions of Light in the Dicke-Bose-Hubbard model
• Nested entangled states for distributed quantum channels
• Light-shift-induced photonic nonlinearities
• Atomic Entanglement vs Photonic Visibility for Quantum Criticality of Hybrid System
• Photon and polariton fluctuations in arrays of QED-cavities
• Migration of bosonic particles across a Mott insulator to superfluid phase interface
• Staggered magnetization and entanglement enhancement by magnetic impurities in $S=1/2$ spin chain
• Random circuits by measurements on weighted graph states
• Heisenberg chains cannot mirror a state
• Effective generation of Ising interaction and cluster states in coupled microcavities