Frequency Feedback for Two-Photon Interference from Separate Quantum Dots

Abstract

We employ active feedback to stabilize the frequency of single photons emitted by two separate quantum dots to an atomic standard. The transmission of a single, rubidium-based Faraday filter serves as the error signal for frequency stabilization to less than 1.5% of the emission linewidth. Long-term stability is demonstrated by Hong-Ou-Mandel interference between photons from the two quantum dots. The observed visibility of $V_{\mathrm{lock}}=(41\pm 5)$% is limited only by internal dephasing of the dots. Our approach facilitates quantum networks with indistinguishable photons from distributed emitters.

References in corpus (26)

• Quantum Communication
• Multi-photon entanglement and interferometry
• Optical Quantum Computing
• Triggered single photons from a quantum dot
• On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar
• Entangled Photon Pairs from Semiconductor Quantum Dots
• On-demand semiconductor single-photon source with near-unity indistinguishability
• On-demand generation of indistinguishable polarization-entangled photon pairs
• Charge noise and spin noise in a semiconductor quantum device
• Tunable Indistinguishable Photons From Remote Quantum Dots
• Interference of Single Photons from Two Separate Semiconductor Quantum Dots
• Electric-field-induced coherent coupling of the exciton states in a single quantum dot
• Long distance entanglement swapping with photons from separated sources
• ElecSus: A program to calculate the electric susceptibility of an atomic ensemble
• Simple atomic quantum memory suitable for semiconductor quantum dot single photons
• Solid-state ensemble of highly entangled photon sources at rubidium atomic transitions
• Decoherence-protected memory for a single-photon qubit
• Ultra-Narrow Faraday Rotation Filter at the Rb D1 Line
• Cavity-Enhanced Two-Photon Interference using Remote Quantum Dot Sources
• A frequency-stabilized source of single photons from a solid-state qubit
• Two-photon interference from remote deterministic quantum dot microlenses
• Electric-field-induced energy tuning of on-demand entangled-photon emission from self-assembled quantum dots
• Energy-Tunable Quantum Dot with Minimal Fine Structure Created by Using Simultaneous Electric and Magnetic Fields
• Prospects for storage and retrieval of a quantum dot single photon in an ultracold ${}^{87}$Rb ensemble
• Two-photon interference from two blinking quantum emitters
• Active feedback of a Fabry-Perot cavity to the emission of a single InAs/GaAs quantum dot

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• Strong Purcell effect on a neutral atom trapped in an open fiber cavity
• Limitations on the indistinguishability of photons from remote solid state sources
• Maximally entangled and GHz-clocked on-demand photon pair source
• Quantum optics of spin waves through ac Stark modulation
• Non-adiabatic Storage of Short Light Pulses in an Atom-Cavity System