High-fidelity entanglement swapping with fully independent sources
arXiv:0809.3991 · doi:10.1103/PhysRevA.79.040302
Abstract
Entanglement swapping allows to establish entanglement between independent particles that never interacted nor share any common past. This feature makes it an integral constituent of quantum repeaters. Here, we demonstrate entanglement swapping with time-synchronized independent sources with a fidelity high enough to violate a Clauser-Horne-Shimony-Holt inequality by more than four standard deviations. The fact that both entangled pairs are created by fully independent, only electronically connected sources ensures that this technique is suitable for future long-distance quantum communication experiments as well as for novel tests on the foundations of quantum physics.
added technical details and extended introduction and conclusion, slightly modified the abstract, corrected a mistake in the affiliations
References in corpus (21)
- Long-distance quantum communication with atomic ensembles and linear optics
- Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
- Violation of Bell's inequality under strict Einstein locality conditions
- Quantum privacy amplification and the security of quantum cryptography over noisy channels
- Free-Space distribution of entanglement and single photons over 144 km
- Quantum repeaters based on entanglement purification
- Mapping photonic entanglement into and out of a quantum memory
- Experimental demonstration of a BDCZ quantum repeater node
- A wavelength-tunable fiber-coupled source of narrowband entangled photons
- Bell inequality violation with two remote atomic qubits
- Distribution of time-bin qubits over 50 km of optical fiber
- Quantum State Transfer Between Matter and Light
- Maximum efficiency of a linear-optical Bell-state analyzer
- Entangling Independent Photons by Time Measurement
- Experimental Nonlocality Proof of Quantum Teleportation and Entanglement Swapping
- Security of Quantum Key Distribution with Entangled Photons Against Individual Attacks
- Experimental interference of independent photons
- Generation of Narrow-Band Polarization-Entangled Photon Pairs for Atomic Quantum Memories
- Robust and Efficient Quantum Repeaters with Atomic Ensembles and Linear Optics
- Experimental Synchronization of Independent Entangled Photon Sources
- Quantum nonlocality obtained from local states by entanglement purification
Cited by in corpus (52)
- Multi-photon entanglement and interferometry
- Experimental delayed-choice entanglement swapping
- On the genesis and evolution of Integrated Quantum Optics
- Bilocal versus non-bilocal correlations in entanglement swapping experiments
- Alternative schemes for measurement-device-independent quantum key distribution
- Delayed-choice gedanken experiments and their realizations
- Bell nonlocality in networks
- Quantum Internet Protocol Stack: a Comprehensive Survey
- Quantum photonics at telecom wavelengths based on lithium niobate waveguides
- Experimental violation of Svetlichny's inequality
- Simultaneous entanglement swapping of multiple orbital angular momentum states of light
- Highly efficient entanglement swapping and teleportation at telecom wavelength
- Efficient and pure femtosecond-pulse-length source of polarization-entangled photons
- Experimental demonstration of non-bilocal quantum correlations
- Location-Dependent Communications using Quantum Entanglement
- Teleportation of entanglement over 143 km
- Pulsed source of spectrally uncorrelated and indistinguishable photons at telecom wavelengths
- High-visibilty two-photon interference at a telecom wavelength using picosecond regime separated sources
- The Deep Space Quantum Link: Prospective Fundamental Physics Experiments using Long-Baseline Quantum Optics
- Entanglement swapping and quantum correlations via Elegant Joint Measurements
- Classical simulation of entanglement swapping with bounded communication
- Quantum NETwork: from theory to practice
- Heralded quantum steering over a high-loss channel
- Is wave-particle objectivity compatible with determinism and locality?
- Entanglement Swapping with Independent Sources over an Optical Fibre Network
- On the Purity and Indistinguishability of Down-Converted Photons
- Certification of non-classicality in all links of a photonic star network without assuming quantum mechanics
- Gaussification and entanglement distillation of continuous variable systems: a unifying picture
- A high visibility Hong-Ou-Mandel interference via a time-resolved coincidence measurement
- Activating remote entanglement in a quantum network by local counting of identical particles
- Information processing at the speed of light
- Surpassing the repeaterless bound with a photon-number encoded measurement-device-independent quantum key distribution protocol
- Deterministic and probabilistic entanglement swapping of nonmaximally entangled states assisted by optimal quantum state discrimination
- Remote entanglement distribution in a quantum network via multinode indistinguishability of photons
- Quantum Location Verification in Noisy Channels
- Entanglement Swapping for Generation of Heralded Time-Frequency-Entangled Photon Pairs
- Partial measurements and the realization of quantum-mechanical counterfactuals
- Entanglement swapping with quantum-memory-compatible photons
- A universal, plug-and-play synchronisation scheme for practical quantum networks
- Engineering unsteerable quantum states with active feedback
- Quantum channel correction outperforming direct transmission
- Towards continuous-wave regime teleportation for light matter quantum relay stations
- Erasing Quantum Distinguishability via Single-Mode Filtering
- Entangling independent particles by path identity
- Robustness of entanglement-based discrete- and continuous-variable quantum key distribution against channel noise
- Photonic Hybrid State Entanglement Swapping using Cat State Superpositions
- Bragg-Grating Enhanced Narrow-Band Spontaneous Parametric Down Conversion
- Teleporting bipartite entanglement using maximally entangled mixed channels
- Entanglement swapping in black holes: restoring predictability
- Towards scalable active steering protocols for genuinely entangled state manifolds
- Classical Attack on Bell Inequalities
- Capacity-Achieving Entanglement Purification Protocol for Pauli Dephasing Channel