Long-range spin-qubit interaction mediated by microcavity polaritons

Abstract

We study the optically-induced coupling between spins mediated by polaritons in a planar micro-cavity. In the strong coupling regime, the vacuum Rabi splitting introduces anisotropies in the spin coupling. Moreover, due to their photon-like mass, polaritons provide an extremely long spin coupling range. This suggests the realization of two-qubit all-optical quantum operations within tens of picoseconds with spins localized as far as hundreds of nanometers apart.

5 pages, 3 figures

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• Emergence of entanglement from a noisy environment: The case of polaritons
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• Light-mass Bragg cavity polaritons in planar quantum dot lattices
• Two-Qubit Geometric Phase Gate for Quantum Dot Spins using Cavity Polariton Resonance
• Ultralong-range radiative excitation transfer between quantum dots in a planar microcavity
• Single-Shot Quantum Non-Demolition Measurement of a Quantum Dot Electron Spin, using Cavity Exciton-Polaritons
• Microcavity polaritons in disordered exciton lattices
• Inverted many-body mobility edge in a central qudit problem
• Polariton parametric photoluminescence in spatially inhomogeneous systems
• Towards Quantum Repeaters with Solid-State Qubits: Spin-Photon Entanglement Generation using Self-Assembled Quantum Dots
• Optical Manipulation of Quantum Dot Electron Spin Qubits Using Microcavity Quantum Well Exciton-Polaritons
• Exciton-polariton mediated interaction between two nitrogen-vacancy color centers in diamond using two-dimensional transition metal dichalcogenides
• Read-out of Quasi-periodic Systems using Qubits
• Donor-donor interaction mediated by cavity-photons and its relation to interactions mediated by excitons and polaritons
• Spin wave free spectrum and magnetic field gradient of nanopatterned planes of ferromagnetic cobalt nanoparticles: key properties for magnetic resonance based quantum computing
• Multi-spin errors in the optical control of a spin quantum memory
• Efficient spin control in high-quality-factor planar micro-cavities