Simple atomic quantum memory suitable for semiconductor quantum dot single photons

Abstract

Quantum memories matched to single photon sources will form an important cornerstone of future quantum network technology. We demonstrate such a memory in warm Rb vapor with on-demand storage and retrieval, based on electromagnetically induced transparency. With an acceptance bandwidth of $\delta f$ = 0.66~GHz the memory is suitable for single photons emitted by semiconductor quantum dots. In this regime, vapor cell memories offer an excellent compromise between storage efficiency, storage time, noise level, and experimental complexity, and atomic collisions have negligible influence on the optical coherences. Operation of the memory is demonstrated using attenuated laser pulses on the single photon level. For 50 ns storage time we measure ${\eta }_{\text{e2e}}^{\text{50ns}}=3.4(3)\%$ \emph{end-to-end efficiency} of the fiber-coupled memory, with an \emph{total intrinsic efficiency} ${\eta }_{\text{int}}=17(3)\%$. Straightforward technological improvements can boost the end-to-end-efficiency to ${\eta }_{\text{e2e}}\approx 35\%$; beyond that increasing the optical depth and exploiting the Zeeman substructure of the atoms will allow such a memory to approach near unity efficiency. In the present memory, the unconditional readout noise level of $9\cdot 10^{-3}$ photons is dominated by atomic fluorescence, and for input pulses containing on average ${\mu }_1=0.27(4)$ photons the signal to noise level would be unity.

References in corpus (9)

• The Quantum Internet
• Quantum Computing
• Long-Distance Entanglement Distribution with Single-Photon Sources
• Coherent spin control at the quantum level in an ensemble-based optical memory
• Storing images in warm atomic vapor
• Interfacing GHz-bandwidth heralded single photons with a room-temperature Raman quantum memory
• Photon storage in Lambda-type optically dense atomic media. III. Effects of inhomogeneous broadening
• Photon storage in Lambda-type optically dense atomic media. IV. Optimal control using gradient ascent
• Collisional decoherence during writing and reading quantum states

Cited by in corpus (47)

• Droplet Epitaxy of Semiconductor Nanostructures for Quantum Photonic Devices
• Quantum Communication Using Semiconductor Quantum Dots
• Quantum dots for photonic quantum information technology
• Low-Noise GaAs Quantum Dots for Quantum Photonics
• Quantum Interference of Identical Photons from Remote GaAs Quantum Dots
• Space-borne quantum memories for global quantum communication
• Fast, noise-free memory for photon synchronization at room temperature
• Strain-Tuning of the Optical Properties of Semiconductor Nanomaterials by Integration onto Piezoelectric Actuators
• Ideal refocusing of an optically active spin qubit under strong hyperfine interactions
• GaAs quantum dots grown by droplet etching epitaxy as quantum light sources
• Single-Photon Storage in a Ground-State Vapor Cell Quantum Memory
• High-performance cavity-enhanced quantum memory with warm atomic cell
• Simulating quantum repeater strategies for multiple satellites
• Quantum Teleportation with Imperfect Quantum Dots
• Field-deployable Quantum Memory for Quantum Networking
• Improved Light-Matter Interaction for Storage of Quantum States of Light in a Thulium-Doped Crystal Cavity
• Local Temperatures Out of Equilibrium
• Raman Quantum Memory with Built-In Suppression of Four-wave Mixing Noise
• QUICK${}^3$ -- Design of a satellite-based quantum light source for quantum communication and extended physical theory tests in space
• Broadband coherent optical memory based on electromagnetically induced transparency
• Quantum memories for fundamental science in space
• On-demand semiconductor source of 780 nm single photons with controlled temporal wave packets
• Ultra-low noise quantum memory for quasi-deterministic single photons generated by Rydberg collective atomic excitations
• An efficient, tunable, and robust source of narrow-band photon pairs at the ${}^{87}$Rb D1 line
• Frequency Feedback for Two-Photon Interference from Separate Quantum Dots
• Large-Range Frequency Tuning of a Narrow-Linewidth Quantum Emitter
• Correlations between Optical Properties and Voronoi-Cell Area of Quantum Dots
• Slow and fast light behavior of single photons from a quantum dot interacting with the excited state hyperfine structure of the Cesium D1-line
• Synthetic five-wave mixing in an integrated microcavity for visible-telecom entanglement generation
• Nonclassical photon pairs from warm atomic vapor using a single driving laser
• High nonclassical correlations of large-bandwidth photon pairs generated in warm atomic vapor
• Room Temperature Atomic Frequency Comb Memory for Light
• Hong-Ou-Mandel interference of polarization qubits stored in independent room-temperature quantum memories
• Wigner time delay induced by a single quantum dot
• Photonic quantum memory using an intra-atomic frequency comb
• Electromagnetically Induced Transparency and Optical Pumping in the Hyperfine Paschen-Back Regime
• Proposal for a long-lived quantum memory using matter-wave optics with Bose-Einstein condensates in microgravity
• Optimization and readout-noise analysis of a warm vapor EIT memory on the Cs D1 line
• Broadband Quantum Memory in Atomic Ensembles
• Standalone mobile quantum memory system
• Eliminating temporal correlation in quantum-dot entangled photon source by quantum interference
• Room-temperature ladder-type optical memory compatible with single photons from InGaAs quantum dots
• Electromagnetically Induced Transparency of On-demand Single Photons in a Hybrid Quantum Network
• Light Storage in Light Cages: A Scalable Platform for Multiplexed Quantum Memories
• Highly Efficient and Broadband Optical Delay Line towards a Quantum Memory
• Switching, Amplifying, and Chirping Diode Lasers with Current Pulses for High Bandwidth Quantum Technologies
• Quantum interference between autonomous dissimilar quantum light sources for hybrid quantum networks