Multipartite entanglement generation and contextuality tests using non-destructive three-qubit parity measurements
arXiv:1902.08842 · doi:10.1103/PhysRevLett.123.050401
Abstract
We report on the realization and application of non-destructive three-qubit parity measurements on nuclear spin qubits in diamond. We use high-fidelity quantum logic to map the parity of the joint state of three nuclear spin qubits onto an electronic spin qubit that acts as an ancilla, followed by single-shot non-destructive readout of the ancilla combined with an electron spin echo to ensure outcome-independent evolution of the nuclear spins. Through the sequential application of three such parity measurements, we demonstrate the generation of genuine multipartite entangled states out of the maximally mixed state. Furthermore, we implement a single-shot version of the GHZ experiment that can generate a quantum versus classical contradiction in each run. Finally, we test a state-independent non-contextuality inequality in eight dimensions. The techniques and insights developed here are relevant for fundamental tests as well as for quantum information protocols such as quantum error correction.
References in corpus (49)
- Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
- Heralded entanglement between solid-state qubits separated by 3 meters
- An Open-System Quantum Simulator with Trapped Ions
- State preservation by repetitive error detection in a superconducting quantum circuit
- Fault-tolerant quantum computation with high threshold in two dimensions
- Solid-state electronic spin coherence time approaching one second
- Observation of coherent oscillation of a single nuclear spin and realization of a two-qubit conditional quantum gate
- High-fidelity projective readout of a solid-state spin quantum register
- Quantum error correction in a solid-state hybrid spin register
- Preparation and Measurement of Three-Qubit Entanglement in a Superconducting Circuit
- Room temperature coherent control of coupled single spins in solid
- Deterministic delivery of remote entanglement on a quantum network
- Universal control and error correction in multi-qubit spin registers in diamond
- Generation of Three-Qubit Entangled States using Superconducting Phase Qubits
- Experimentally testable state-independent quantum contextuality
- Entanglement Distillation between Solid-State Quantum Network Nodes
- State-independent experimental test of quantum contextuality
- Fault-tolerant Quantum Communication with Minimal Physical Requirements
- Detection and control of individual nuclear spins using a weakly coupled electron spin
- Deterministic entanglement of superconducting qubits by parity measurement and feedback
- Implementing a strand of a scalable fault-tolerant quantum computing fabric
- Coherent Population Trapping of Single Spins in Diamond Under Optical Excitation
- Spin dynamics in the optical cycle of single nitrogen-vacancy centres in diamond
- Tracking Photon Jumps with Repeated Quantum Non-Demolition Parity Measurements
- Polarization and readout of coupled single spins in diamond
- Repeated quantum error correction on a continuously encoded qubit by real-time feedback
- State-independent quantum contextuality with single photons
- Demonstration of weight-four parity measurements in the surface code architecture
- Demonstration of entanglement-by-measurement of solid state qubits
- Initialization by measurement of a two-qubit superconducting circuit
- Testing contextuality on quantum ensembles with one clean qubit
- Repeated multi-qubit readout and feedback with a mixed-species trapped-ion register
- Experimental Three-Particle Quantum Nonlocality under Strict Locality Conditions
- Manipulating a qubit through the backaction of sequential partial measurements and real-time feedback
- Robust quantum-network memory using decoherence-protected subspaces of nuclear spins
- Compatibility and noncontextuality for sequential measurements
- State-independent experimental tests of quantum contextuality in a three dimensional system
- Experimental implementation of a Kochen-Specker set of quantum tests
- Experimental violation of multipartite Bell inequalities with trapped ions
- Dephasing mechanisms of diamond-based nuclear-spin memories for quantum networks
- Applying the simplest Kochen-Specker set for quantum information processing
- State-independent experimental test of quantum contextuality in an indivisible system
- Entanglement genesis by ancilla-based parity measurement in 2D circuit QED
- Sustained state-independent quantum contextual correlations from a single ion
- Contextuality without nonlocality in a superconducting quantum system
- Quantum Zeno subspaces by repeated multi-spin projections
- Implementing and characterizing precise multi-qubit measurements
- Experimental implementation of an eight-dimensional Kochen-Specker set and observation of its connection with the Greenberger-Horne-Zeilinger theorem
- (Nearly) optimal P-values for all Bell inequalities
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- A 10-qubit solid-state spin register with quantum memory up to one minute
- Fault-tolerant operation of a logical qubit in a diamond quantum processor
- Kochen-Specker Contextuality
- Quantum Conference Key Agreement: A Review
- Analysis of Multipartite Entanglement Distribution using a Central Quantum-Network Node
- Entanglement of dark electron-nuclear spin defects in diamond
- Significant-loophole-free test of Kochen-Specker contextuality using two species of atomic-ions
- Deep learning enhanced individual nuclear-spin detection
- Precise high-fidelity electron-nuclear spin entangling gates in NV centers via hybrid dynamical decoupling sequences
- All-microwave holonomic control of an electron-nuclear two-qubit register in diamond
- Entanglement Emerges from Dissipation-Structured Quantum Self-Organization
- A strongly interacting, two-dimensional, dipolar spin ensemble in (111)-oriented diamond
- Generic eigenstate preparation via measurement-based purification
- Experimental Test of Contextuality based on State Discrimination with a Single Qubit
- Entangling Nuclear Spins by Dissipation in a Solid-state System
- Twist-and-store entanglement in bimodal and spin-1 Bose-Einstein condensates
- Echoes in a parametrically perturbed Kerr-nonlinear oscillator