A quantum interface between light and nuclear spins in quantum dots

Abstract

The coherent coupling of flying photonic qubits to stationary matter-based qubits is an essential building block for quantum communication networks. We show how such a quantum interface can be realized between a traveling-wave optical field and the polarized nuclear spins in a singly charged quantum dot strongly coupled to a high-finesse optical cavity. By adiabatically eliminating the electron a direct effective coupling is achieved. Depending on the laser field applied, interactions that enable either write-in or read-out are obtained.

10 pages, 5 figures, final version

References in corpus (14)

• The Quantum Internet
• Quantum nature of a strongly-coupled single quantum dot-cavity system
• Optical pumping of electronic and nuclear spin in single charge-tunable quantum dots
• Theory of electron spin decoherence by interacting nuclear spins in a quantum dot
• Quantum theory for electron spin decoherence induced by nuclear spin dynamics in semiconductor quantum computer architectures: Spectral diffusion of localized electron spins in the nuclear solid-state environment
• Adiabatic Elimination in a Lambda System
• Theory of control of spin/photon interface for quantum networks
• Quantum benchmark for storage and transmission of coherent states
• Confluence of resonant laser excitation and bi-directional quantum dot nuclear spin polarization
• High-brightness single photon source from a quantum dot in a directional-emission nanocavity
• Spin interactions, relaxation and decoherence in quantum dots
• Qubit protection in nuclear-spin quantum dot memories
• Overhauser effect in individual InP/GaInP dots
• High fidelity teleportation between light and atoms

Cited by in corpus (11)

• Measurement of the spin temperature of optically cooled nuclei and GaAs hyperfine constants in GaAs/AlGaAs quantum dots
• Nuclear Spin Dynamics in Double Quantum Dots: Multi-Stability, Dynamical Polarization, Criticality and Entanglement
• Hyperfine induced spin and entanglement dynamics in Double Quantum Dots: A homogeneous coupling approach
• Interfacing nuclear spins in quantum dots to cavity or traveling-wave fields
• Quantum limit for nuclear spin polarization in semiconductor quantum dots
• Hyperfine induced electron spin and entanglement dynamics in double quantum dots: The case of separate baths
• Quantum memory assisted precision rotation sensing
• Swapping and entangling hyperfine coupled nuclear spin baths
• Unexpected systematic degeneracy in a system of two coupled Gaudin models with homogeneous couplings
• Measurement-induced nuclear spin polarization
• Shielding of external magnetic field by dynamic nuclear polarization in (In,Ga)As quantum dots