Quantum telecommunication based on atomic cascade transitions

Abstract

A quantum repeater at telecommunications wavelengths with long-lived atomic memory is proposed, and its critical elements are experimentally demonstrated using a cold atomic ensemble. Via atomic cascade emission, an entangled pair of 1530 nm and 780 nm photons is generated. The former is ideal for long-distance quantum communication, and the latter is naturally suited for mapping to a long-lived atomic memory. Together with our previous demonstration of photonic-to-atomic qubit conversion, both of the essential elements for the proposed telecommunications quantum repeater have now been realized.

5 pages, 4 figures

References in corpus (12)

• Long-distance quantum communication with atomic ensembles and linear optics
• Quantum repeaters based on entanglement purification
• Storage and retrieval of single photons transmitted between remote quantum memories
• Creation of entangled states of distant atoms by interference
• Measurement-Induced Entanglement for Excitation Stored in Remote Atomic Ensembles
• Quantum State Transfer Between Matter and Light
• Entanglement of remote atomic qubits
• Entanglement of a photon and a collective atomic excitation
• Experimental Bell Inequality Violation with an Atom and a Photon
• Entangling single and $N$ atom qubits for fast quantum state detection and transmission
• Theory of dark-state polariton collapses and revivals
• Lifetime Measurement of the 6s Level of Rubidium

Cited by in corpus (74)

• Multiplexed Memory-Insensitive Quantum Repeaters
• On the genesis and evolution of Integrated Quantum Optics
• Optimal control of light pulse storage and retrieval
• Narrow Band Source of Transform-Limited Photon Pairs via Four-Wave Mixing in a Cold Atomic Ensemble
• Deterministic single photons via conditional quantum evolution
• Entanglement of light-shift compensated atomic spin waves with telecom light
• Correlated photon pairs generated from a warm atomic ensemble
• Coherent frequency-down-conversion interface for quantum repeaters
• Highly bright photon-pair generation in Doppler-broadened ladder-type atomic system
• Single-Photon Superradiance in Cold Atoms
• Spiral bandwidth of four-wave mixing in Rb vapour
• Cavity-free nondestructive detection of a single optical photon
• Stochastic methods for light propagation and recurrent scattering in saturated and nonsaturated atomic ensembles
• An integrated quantum repeater at telecom wavelength with single atoms in optical fiber cavities
• Time-resolved Scattering of a Single Photon by a Single Atom
• Quantum interference of electromagnetic fields from remote quantum memories
• Cooperative single-photon subradiant states
• Phase-imprinted multiphoton subradiant states
• Counterintuitive temporal shape of single photons
• Enhancement of the quadrupole interaction of an atom with guided light of an ultrathin optical fiber
• Telecom-heralded single photon absorption by a single atom
• Interference and nonlinear properties of four-wave-mixing resonances in thermal vapor: Analytical results and experimental verification
• Dual species matter qubit entangled with light
• Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold Rb-87 ensemble
• Efficiency of light-frequency conversion in an atomic ensemble
• Quantum Interference between Autonomous Single-Photon Sources from Doppler-Broadened Atomic Ensemble
• Positive-P phase space method simulation in superradiant emission from a cascade atomic ensemble
• Nanophotonic quantum network node with neutral atoms and an integrated telecom interface
• Tuning the collective decay of two entangled emitters by means of a nearby surface
• Cooperative light scattering from helical-phase-imprinted atomic rings
• Massively-multiplexed generation of Bell-type entanglement using a quantum memory
• Motion-induced signal revival in pulsed Rydberg four-wave mixing beyond the frozen gas limit
• Storing a single photon as a spin wave entangled with a flying photon in telecomband
• Long Light Storage Time in an Optical Fiber
• Coupling of four-wave mixing and Raman scattering by ground-state atomic coherence
• A simple, narrow, and robust atomic frequency reference at 993 nm exploiting the rubidium (Rb) $5S_{1/2}$ to $6S_{1/2}$ transition using one-color two-photon excitation
• Ultra-broadband continuously-tunable polarization entangled photon pair source covering the C+L telecom bands based on a single type-II PPKTP crystal
• Atomic frequency reference at 1033 nm for ytterbium (Yb)-doped fiber lasers and applications exploiting a rubidium (Rb) 5$S_{1/2}$ to 4$D_{5/2}$ one-colour two-photon transition
• Spectral analysis for cascade-emission-based quantum communication in atomic ensembles
• Non-degenerate four-wave mixing in rubidium vapor: transient regime
• Photon bandwidth dependence of light-matter interaction
• Entanglement distribution with wavevector-multiplexed quantum memory
• Cascaded cold atomic ensembles in a diamond configuration as a spectrally entangled multiphoton source
• Cooperative single-photon subradiant states in a three-dimensional atomic array
• A non-adiabatic approach to entanglement distribution over long distances
• Phase matching alters spatial multiphoton processes in dense atomic ensembles
• Efficient Phase-Encoding Quantum Key Generation with Narrow-Band Single Photons
• Photon pumping in a weakly-driven quantum cavity-spin system
• Spectral Shaping of Cascade Emissions from Multiplexed Cold Atomic Ensembles
• Hybrid quantum repeater based on resonant qubit-field interactions
• Observations of Ultrafast Superfluorescent Beatings in a Cesium Atomic Vapor Excited by Femtosecond Laser Pulses
• Qubit transfer between photons at telecom and visible wavelengths in a slow-light atomic medium
• Characterization of a photon pair source based on a cold atomic ensemble using a cascade level scheme
• Wavelength conversion for single-photon polarization qubits through continuous variable quantum teleportation
• Coherently prepared nondegenerate Y-shaped four-level correlated emission laser: A source of tripartite entangled light
• An optical atomic clock using $4D_J$ states of rubidium
• Characterization of near-infrared to telecom frequency conversion in a rubidium-filled hollow-core photonic-crystal fiber
• Spectroscopy of the ${}^{85}$Rb 4$D_{3/2}$ state for hyperfine-structure determination
• Entropy of entanglement in continuous frequency space of the biphoton state from multiplexed cold atomic ensembles
• Nonclassical Correlation of Polarization Entangled Photons in a Biexciton-Exciton Cascade
• Almost indistinguishable single photons via multiplexing cascaded biphotons with cavity modulation and phase compensation
• Light scattering properties beyond weak-field excitation in atomic ensembles
• Spectral compression and entanglement reduction in the cascaded biphoton state with cavities
• Nondegenerate parametric down conversion in coherently prepared two-level atomic gas
• Spectrally entangled biphoton state of cascade emissions from a Doppler-broadened atomic ensemble
• Superradiant cascade emissions in an atomic ensemble via four-wave mixing
• Electromagnetically Induced Transparency in optically trapped rubidium atoms
• Superradiant parametric conversion of spin waves
• Spectral shaping of the biphoton state from multiplexed thermal atomic ensembles
• Temporally-long C-band heralded single photons generated from hot atoms
• Ultra-bright omni-directional collective emission of correlated photon pairs from atomic vapors
• Nonorthogonal coding in spectrally-entangled photons
• Diverse efficiency of observable optimization for four-level quantum systems with higher-order traps
• Superradiant Emission of Ultra-Bright Photon Pairs in Doppler-Broadened Atomic Ensemble