Scalable multiparty steering based on a single pair of entangled qubits
arXiv:2308.02296 · doi:10.1116/5.0197186
Abstract
The distribution and verification of quantum nonlocality across a network of users is essential for future quantum information science and technology applications. However, beyond simple point-to-point protocols, existing methods struggle with increasingly complex state preparation for a growing number of parties. Here, we show that, surprisingly, multiparty loophole-free quantum steering, where one party simultaneously steers arbitrarily many spatially separate parties, is achievable by constructing a quantum network from a set of qubits of which only one pair is entangled. Using these insights, we experimentally demonstrate this type of steering between three parties with the detection loophole closed. With its modest and fixed entanglement requirements, this work introduces a scalable approach to rigorously verify quantum nonlocality across multiple parties, thus providing a practical tool towards developing the future quantum internet.
References in corpus (39)
- Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
- Steering, Entanglement, Nonlocality, and the EPR Paradox
- Significant-loophole-free test of Bell's theorem with entangled photons
- A strong loophole-free test of local realism
- One-sided Device-Independent Quantum Key Distribution: Security, feasibility, and the connection with steering
- Photonic quantum information processing: a concise review
- Quantum Steering
- Entanglement, EPR-correlations, Bell-nonlocality, and Steering
- Quantum steering: a review with focus on semidefinite programming
- Longer-Baseline Telescopes Using Quantum Repeaters
- Qubit teleportation between non-neighboring nodes in a quantum network
- Multipartite Einstein-Podolsky-Rosen steering and genuine tripartite entanglement with optical networks
- A trusted-node-free eight-user metropolitan quantum communication network
- Towards a Distributed Quantum Computing Ecosystem
- Genuine multipartite Einstein-Podolsky-Rosen steering
- Multipartite entanglement in spin chains
- Detection of entanglement in asymmetric quantum networks and multipartite quantum steering
- Unconditional security of entanglement-based continuous-variable quantum secret sharing
- Arbitrarily loss-tolerant Einstein-Podolsky-Rosen steering allowing a demonstration over 1 km of optical fiber with no detection loophole
- Multipartite Gaussian steering: monogamy constraints and quantum cryptography applications
- Quantum randomness extraction for various levels of characterization of the devices
- Genuine High-Order Einstein-Podolsky-Rosen Steering
- Unbounded randomness certification using sequences of measurements
- Experimental Verification of Multipartite Entanglement in Quantum Networks
- Experimental device-independent verification of quantum steering
- Conclusive experimental demonstration of one-way Einstein-Podolsky-Rosen steering
- Network Quantum Steering
- Nonlocality of a single photon: paths to an EPR-steering experiment
- The geometry of the Einstein--Podolsky--Rosen correlations
- Einstein-Podolsky-Rosen Steering in Two-sided Sequential Measurements with One Entangled Pair
- Heralded quantum steering over a high-loss channel
- Versatile Multipartite Einstein-Podolsky-Rosen Steering via a Quantum Frequency Comb
- Experimental multipartite entanglement and randomness certification of the W state in the quantum steering scenario
- Authentication protocol based on collective quantum steering
- Counting Classical Nodes in Quantum Networks
- EPR-steering: closing the detection loophole with non-maximally entangled states and arbitrary low efficiency
- Certified Random Number Generation from Quantum Steering
- Shareability of steering in 2-producible states
- Genuine Secret-Sharing States