Experimental space-division multiplexed polarization-entanglement distribution through 12 paths of a multicore fiber
arXiv:2103.10791 · doi:10.1103/PRXQuantum.2.040356
Abstract
The development and wide application of quantum technologies highly depend on the capacity of the communication channels distributing entanglement. Space-division multiplexing (SDM) enhanced channel capacities in classical telecommunication and bears the potential to transfer the idea to quantum communication using current infrastructure. Here, we demonstrate an SDM of polarization-entangled photons over a 411m long 19-core multicore fiber distributing polarization-entangled photon pairs through up to 12 channels simultaneously. The quality of the multiplexed transfer is evidenced by high polarization visibility and CHSH Bell inequality violation for each pair of opposite cores. Our distribution scheme shows high stability over 24 hours without any active polarization stabilization and can be effortlessly adapted to a higher number of channels. This technique increases the quantum-channel capacity and allows the reliable implementation of quantum networks of multiple users based on a single entangled-photon pair source.
References in corpus (31)
- Quantum Cryptography
- Space Division Multiplexing in Optical Fibres
- Secure quantum key distribution with realistic devices
- Free-Space distribution of entanglement and single photons over 144 km
- Satellite-relayed intercontinental quantum network
- Secure quantum key distribution over 421 km of optical fiber
- Quantum teleportation and entanglement distribution over 100-kilometre free-space channels
- Provably Secure and Practical Quantum Key Distribution over 307 km of Optical Fibre
- Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer
- Entanglement-based wavelength multiplexed quantum communication network
- Spatial correlations in parametric down-conversion
- A trusted-node-free eight-user metropolitan quantum communication network
- High-Dimensional Quantum Key Distribution based on Multicore Fiber using Silicon Photonic Integrated Circuits
- Quantum key distribution with entangled photon sources
- A perspective on multiparameter quantum metrology: from theoretical tools to applications in quantum imaging
- Complete and Deterministic discrimination of polarization Bell state assisted by momentum entanglement
- Quantum information processing with space-division multiplexing optical fibres
- Distinguishability and many-particle interference
- Hyperentanglement of two photons in three degrees of freedom
- High-dimensional decoy-state quantum key distribution over 0.3 km of multicore telecommunication optical fibers
- Quantum key distribution over multicore fiber
- Experimental Entanglement and Nonlocality of a Two-Photon Six-Qubit Cluster State
- Programmable linear quantum networks with a multimode fibre
- Boosting the secret key rate in a shared quantum and classical fibre communication system
- Observation of genuine three-photon interference
- Passively stable distribution of polarisation entanglement over 192 km of deployed optical fibre
- A model for optimizing quantum key distribution with continuous-wave pumped entangled-photon sources
- Fiber transport of spatially entangled photons
- Experimental investigation of quantum key distribution with position and momentum of photon pairs
- Experimental wavelength-multiplexed entanglement-based quantum cryptography
- Multi-dimensional entanglement generation with multi-core optical fibers
Cited by in corpus (14)
- Quantum holography with undetected light
- Simultaneous transmission of hyper-entanglement in 3 degrees of freedom through a multicore fiber
- Distribution of genuine high-dimensional entanglement over 10.2 km of noisy metropolitan atmosphere
- High-dimensional quantum key distribution using a multi-plane light converter
- Certifying position-momentum entanglement at telecommunication wavelengths
- Spatial and spectral characterization of photon pairs at telecommunication-wavelength from type-0 spontaneous parametric down-conversion
- Implementation of space-division multiplexed entanglement-based quantum cryptography over multicore fiber
- Polarization-entangled photon pair source using beam displacers and thin crystals
- Minimum optical depth multiport interferometers for approximating arbitrary unitary operations and pure states
- Efficient Experimental Qudit State Estimation via Point Tomography
- Hybrid classical-quantum communication networks
- In situ quantum verification of polarization-stabilized optical channels
- Reduced State Embedding for Error Correction in Quantum Cryptography
- Advances in Position-Momentum Entanglement: A Versatile Tool for Quantum Technologies