Massively-multiplexed generation of Bell-type entanglement using a quantum memory
arXiv:2103.08269 · doi:10.1038/s42005-021-00551-1
Abstract
High-rate generation of hybrid photon-matter entanglement remains a fundamental building block of quantum network architectures enabling protocols such as quantum secure communication or quantum distributed computing. While a tremendous effort has been made to overcome technological constraints limiting the efficiency and coherence times of current systems, an important complementary approach is to employ parallel and multiplexed architectures. Here we follow this approach experimentally demonstrating the generation of bipartite polarization-entangled photonic states across more than 500 modes, with a programmable delay for the second photon enabled by qubit storage in a wavevector multiplexed cold-atomic quantum memory. We demonstrate Clauser, Horne, Shimony, Holt inequality violation by over 3 standard deviations, lasting for at least 45 μs storage time for half of the modes. The ability to shape hybrid entanglement between the polarization and wavevector degrees of freedom provides not only multiplexing capabilities but also brings prospects for novel protocols.
References in corpus (62)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- The Quantum Internet
- Long-distance quantum communication with atomic ensembles and linear optics
- Space Division Multiplexing in Optical Fibres
- Advances in Quantum Cryptography
- Quantum Secure Direct Communication with Quantum Memory
- Efficient long distance quantum communication
- High-rate quantum cryptography in untrusted networks
- Experimental demonstration of a BDCZ quantum repeater node
- New class of quantum error-correcting codes for a bosonic mode
- Towards a global quantum network
- Spectral multiplexing for scalable quantum photonics using an atomic frequency comb quantum memory and feed-forward control
- Multiplexed Memory-Insensitive Quantum Repeaters
- Entanglement Teleportation via Werner States
- A millisecond quantum memory for scalable quantum networks
- Efficient quantum memory for single photon polarization qubits
- High-Dimensional Quantum Key Distribution based on Multicore Fiber using Silicon Photonic Integrated Circuits
- Repeat-Until-Success Quantum Computing
- Efficient and long-lived quantum memory with cold atoms inside a ring cavity
- Robust creation of entanglement between remote memory qubits
- From quantum fusiliers to high-performance networks
- Highly efficient optical quantum memory with long coherence time in cold atoms
- An efficient quantum light-matter interface with sub-second lifetime
- A solid state spin-wave quantum memory for time-bin qubits
- Efficient quantum memory using a weakly absorbing sample
- Entanglement of a photon and a collective atomic excitation
- Quantum telecommunication based on atomic cascade transitions
- Experimental realization of a multiplexed quantum memory with 225 individually accessible memory cells
- Highly-Efficient Quantum Memory for Polarization Qubits in a Spatially-Multiplexed Cold Atomic Ensemble
- Experimental quantum repeater without quantum memory
- Multiplexed storage and real-time manipulation based on a multiple-degree-of-freedom quantum memory
- A fast and robust approach to long-distance quantum communication with atomic ensembles
- Fault-tolerant quantum repeater with atomic ensembles and linear optics
- Storage of multiple single-photon pulses emitted from a quantum dot in a solid-state quantum memory
- A Waveguide Frequency Converter Connecting Rubidium Based Quantum Memories to the Telecom C-Band
- Memory-assisted measurement-device-independent quantum key distribution
- Direct measurement of decoherence for entanglement between a photon and stored atomic excitation
- Wavevector multiplexed quantum memory via spatially-resolved single-photon detection
- Measurement-device-independent quantum key distribution with quantum memories
- Efficient reversible entanglement transfer between light and quantum memories
- Long-range big quantum-data transmission
- Practical Quantum Repeaters with Parametric Down-Conversion Sources
- Experimental realization of 105-qubit random access quantum memory
- Experimental Entanglement Distillation of Two-qubit Mixed States Under Local filtering Operations
- Multiplexed entanglement generation over quantum networks using multi-qubit nodes
- Spatial multiplexing of atom-photon entanglement sources using feed-forward controls and switching networks
- Practical repeaters for ultra-long distance quantum communication
- Temporally multiplexed quantum repeaters with atomic gases
- Quantum Communication between Multiplexed Atomic Quantum Memories
- Certification of high-dimensional entanglement and Einstein-Podolsky-Rosen steering with cold atomic quantum memory
- Coherent spin-wave processor of stored optical pulses
- Quantum optics of spin waves through ac Stark modulation
- Multiplexed spin-wave-photon entanglement source using temporal-multimode memories and feedforward-controlled readout
- Temporal imaging for ultra-narrowband few-photon states of light
- Experimental demonstration of the DPTS QKD protocol over a 170 km fiber link
- Spatially-resolved control of fictitious magnetic fields in a cold atomic ensemble
- Quantum memory in an optical lattice
- Spatial spin-wave modulator for quantum memory assisted adaptive measurements
- Microchannel plate cross-talk mitigation for spatial autocorrelation measurements
- Entanglement distribution with wavevector-multiplexed quantum memory
- Heralded Quantum Entanglement between Distant Matter Qubits
- Superradiant parametric conversion of spin waves
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- Remote distribution of non-classical correlations over 1250 modes between a telecom photon and a Yb:YSiO crystal
- Multimode capacity of atomic-frequency comb quantum memories
- Optical-domain spectral super-resolution via a quantum-memory-based time-frequency processor
- Zero-Added-Loss Entangled Photon Multiplexing for Ground- and Space-Based Quantum Networks
- Quantum memories for fundamental science in space
- Entanglement generation in a quantum network with finite quantum memory lifetime
- Qubit teleportation between a memory-compatible photonic time-bin qubit and a solid-state quantum network node
- Real-time ghost imaging of Bell-nonlocal entanglement between a photon and a quantum memory
- Mesoscopic and macroscopic quantum correlations in photonic, atomic and optomechanical systems
- Coherent optical two-photon resonance tomographic imaging in three dimensions