Violating Bell's inequality with remotely-connected superconducting qubits
arXiv:1808.03000 · doi:10.1038/s41567-019-0507-7
Abstract
Quantum communication relies on the efficient generation of entanglement between remote quantum nodes, due to entanglement's key role in achieving and verifying secure communications. Remote entanglement has been realized using a number of different probabilistic schemes, but deterministic remote entanglement has only recently been demonstrated, using a variety of superconducting circuit approaches. However, the deterministic violation of a Bell inequality, a strong measure of quantum correlation, has not to date been demonstrated in a superconducting quantum communication architecture, in part because achieving sufficiently strong correlation requires fast and accurate control of the emission and capture of the entangling photons. Here we present a simple and robust architecture for achieving this benchmark result in a superconducting system.
References in corpus (25)
- Charge insensitive qubit design derived from the Cooper pair box
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- State preservation by repetitive error detection in a superconducting quantum circuit
- Coherent Josephson qubit suitable for scalable quantum integrated circuits
- Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
- Qubit architecture with high coherence and fast tunable coupling
- Quantum acoustics with superconducting qubits
- Experimental violation of a Bell's inequality in time with weak measurement
- Deterministic Quantum State Transfer and Generation of Remote Entanglement using Microwave Photons
- On-demand quantum state transfer and entanglement between remote microwave cavity memories
- State tomography of capacitively shunted phase qubits with high fidelity
- Surface code quantum communication
- Deterministic remote entanglement of superconducting circuits through microwave two-photon transitions
- Microwave-controlled generation of shaped single photons in circuit quantum electrodynamics
- Perfect excitation of a matter qubit by a single photon in free space
- Robust concurrent remote entanglement between two superconducting qubits
- Efficient excitation of a two level atom by a single photon in a propagating mode
- Characterization and Reduction of Capacitive Loss Induced by Sub-Micron Josephson Junction Fabrication in Superconducting Qubits
- Flying microwave qubits with nearly perfect transfer efficiency
- Low Loss Multi-Layer Wiring for Superconducting Microwave Devices
- Characterizing the attenuation of coaxial and rectangular microwave-frequency waveguides at cryogenic temperatures
- Chip-to-chip entanglement of transmon qubits using engineered measurement fields
- Suppression of dephasing by qubit motion in superconducting circuits
- Robust quantum state transfer using tunable couplers
- Deterministic Bidirectional Communication and Remote Entanglement Generation Between Superconducting Quantum Processors
Cited by in corpus (57)
- Phonon-mediated quantum state transfer and remote qubit entanglement
- Microwave Quantum Link between Superconducting Circuits Housed in Spatially Separated Cryogenic Systems
- Deterministic multi-qubit entanglement in a quantum network
- On-Demand Directional Microwave Photon Emission Using Waveguide Quantum Electrodynamics
- Bidirectional electro-optic conversion reaching 1% efficiency with thin-film lithium niobate
- Cavity piezo-mechanics for superconducting-nanophotonic quantum interface
- Quantum control of bosonic modes with superconducting circuits
- A scalable superconducting quantum simulator with long-range connectivity based on a photonic bandgap metamaterial
- Low-loss interconnects for modular superconducting quantum processors
- Error-detected state transfer and entanglement in a superconducting quantum network
- Entanglement purification and protection in a superconducting quantum network
- Quantum communication with itinerant surface acoustic wave phonons
- Remote entanglement via adiabatic passage using a tunably-dissipative quantum communication system
- Quantum erasure using entangled surface acoustic phonons
- Combining quantum processors with real-time classical communication
- Number-resolved photocounter for propagating microwave mode
- Deterministic quantum teleportation between distant superconducting chips
- Manipulating complex hybrid entanglement and testing multipartite Bell inequalities in a superconducting circuit
- Deterministic remote entanglement using a chiral quantum interconnect
- Modular quantum processor with an all-to-all reconfigurable router
- Stabilizing two-qubit entanglement by mimicking a squeezed environment
- Microwave-optical coupling via Rydberg excitons in cuprous oxide
- Non-Hermitian Waveguide Cavity QED with Tunable Atomic Mirrors
- Bandgap-Assisted Quantum Control of Topological Edge States in a Cavity
- New observables for testing Bell inequalities in boson pair production
- Scalable, high-fidelity all-electronic control of trapped-ion qubits
- Fast and Robust Geometric Two-Qubit Gates for Superconducting Qubits and beyond
- Bidirectional multi-photon communication between remote superconducting nodes
- Electric fields for light: Propagation of microwave photons along a synthetic dimension
- Long-Range Interaction via Resonator-Induced Phase in Superconducting Qubits
- A fast and large bandwidth superconducting variable coupler
- Heat bath in a quantum circuit
- Remote Cross-resonance Gate between Superconducting Fixed-frequency Qubits
- Verification of Bell Nonlocality by Violating Quantum Monogamy Relations
- Pulse-Enhanced Two-Photon Interference with Solid State Quantum Emitters
- Quantum State Transfer via a Multimode Resonator
- Generation of Frequency-Tunable Shaped Single Microwave Photons Using a Fixed-Frequency Superconducting Qubit
- Using Weyl operators to study Mermin's inequalities in Quantum Field Theory
- Joint Wire Cutting with Non-Maximally Entangled States
- On-demand shaped photon emission based on a parametrically modulated qubit
- Quantum Optimal Control Theory for the Shaping of Flying Qubits
- Quantum phase measurement for two-qubit states in an open waveguide
- Influence of Random Telegraph Noise on Quantum Bit Gate Operation
- On-Demand Microwave Single-Photon Source Based on Tantalum Thin Film
- Quantum contextuality of complementary photon polarizations explored by adaptive input state control
- Escaping Local Minima with Quantum Coherent Cooling
- Tunable Hybrid-Mode Coupler Enabling Strong Interactions between Transmons at Centimeter-Scale Distance
- Demonstration of deterministic SWAP gate between superconducting and frequency-encoded microwave-photon qubits
- A global quantum network with ground-based single-atom memories in optical cavities and satellite links
- Fault-tolerant interfaces for modular quantum computing on diverse qubit platforms
- A hierarchy in Majorana non-abelian tests and hidden variable models
- Time-delayed collective dynamics in waveguide QED and bosonic quantum networks
- EmuPlat: A Framework-Agnostic Platform for Quantum Hardware Emulation with Validated Transpiler-to-Pulse Pipeline
- Revisiting dissipation-driven phase transition in a Josephson junction
- Remote entanglement generation via enhanced quantum state transfer
- Nonlocality in Continuous-Variable Quantum Networks
- Deterministic Quantum Communication Between Fixed-Frequency Superconducting Qubits via Broadband Resonators