14-qubit entanglement: creation and coherence

Abstract

We report the creation of Greenberger-Horne-Zeilinger states with up to 14 qubits. By investigating the coherence of up to 8 ions over time, we observe a decay proportional to the square of the number of qubits. The observed decay agrees with a theoretical model which assumes a system affected by correlated, Gaussian phase noise. This model holds for the majority of current experimental systems developed towards quantum computation and quantum metrology.

4 pages, 2 figures, 1 table

References in corpus (15)

• Quantum-enhanced measurements: beating the standard quantum limit
• Decoherence Free Subspaces for Quantum Computation
• Noiseless Quantum Codes
• Quantum Computers and Dissipation
• Entanglement and quantum computation with ions in thermal motion
• Reconstruction of non-classical cavity field states with snapshots of their decoherence
• Towards fault-tolerant quantum computing with trapped ions
• Experimental demonstration of a hyper-entangled ten-qubit Schrödinger cat state
• Separability criteria for genuine multiparticle entanglement
• Experimental multiparticle entanglement dynamics induced by decoherence
• How to realize a universal quantum gate with trapped ions
• Multiparticle entanglement and its experimental detection
• Matchgate and space-bounded quantum computations are equivalent
• Simulating quantum effects of cosmological expansion using a static ion trap
• Statistical Inference from Imperfect Photon Detection

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• Observations of coherence de Broglie waves
• A measure of qubit environment entanglement for pure dephasing evolutions
• Frequency estimation under non-Markovian spatially correlated quantum noise: Restoring superclassical precision scaling
• Adiabatic Mach-Zehnder interferometer via an array of trapped ions
• Multipartite entanglement detection based on generalized state-dependent entropic uncertainty relation for multiple measurements
• Single-step transfer or exchange of multipartite quantum entanglement with minimum resources
• Qubit-environment Negativity versus Fidelity of conditional environmental states for an NV-center spin qubit interacting with a nuclear environment
• Light-matter micro-macro entanglement
• Signal processing techniques for efficient compilation of controlled rotations in trapped ions
• Accessible quantification of multiparticle entanglement
• Coherent control of multipartite entanglement
• A room-temperature ion trapping apparatus with hydrogen partial pressure below $10^{-11}$ mBar
• Decomposition of symmetric multipartite observable
• Measuring entanglement of a rank-2 mixed state prepared on a quantum computer
• Superadiabatic generation of cat states in bosonic Josephson junctions under particle losses
• Generation of quantum entangled states of multiple groups of qubits distributed in multiple cavities
• Probing multiple-frequency atom-photon interactions with ultracold atoms
• Randomized Benchmarking of Clifford Operators
• Generating Macroscopic Superpositions with Interacting Bose-Einstein Condensates: Multi-Mode Speed-Ups and Speed Limits
• Physical Realization of Measurement Based Quantum Computation
• Measurement-based universal blind quantum computation with minor resources
• Enhancing Sensitivity of an Atom Interferometer to the Heisenberg Limit using Increased Quantum Noise
• Global Variational Quantum Circuits for Arbitrary Symmetric State Preparation
• Ultra-high Compton Frequency, Parity Independent, Mesoscopic Schrödinger Cat Atom Interferometer with Heisenberg Limited Sensitivity
• Necessary and sufficient criterion for k-separability of N-qubit noisy GHZ states
• Experimental verification of multidimensional quantum steering
• Accelerating Quantum Optimal Control of Multi-Qubit Systems with Symmetry-Based Hamiltonian Transformations
• Single calcium-40 ion as quantum memory for photon polarization: a case study
• Polynomial invariants of degree 4 for even-$n$ qubits and their applications in entanglement classification
• Mode shaping in mixed ion crystals of 40Ca2+ and 40Ca+
• Many-body quantum lock-in amplifier
• On correlations in high-energy hadronic processes and the CMS ridge: A manifestation of quantum entanglement?
• Lower bounds on the size of general Schrödinger-cat states from experimental data
• State transformations within entanglement classes containing permutation-symmetric states
• A generic framework for genuine multipartite entanglement detection
• Dynamical fidelity susceptibility of decoherence-free subspaces
• Improving the performance of quantum approximate optimization for preparing non-trivial quantum states without translational symmetry
• Certifying Quantum Temporal Correlation via Randomized Measurements: Theory and Experiment
• A Tailor-made Quantum State Tomography Approach
• Force sensors with precision beyond the standard quantum limit
• Low-temperature environments for quantum computation and quantum simulation
• Precise positioning of an ion in an integrated Paul trap-cavity system using radiofrequency signals
• Improved Quantum State Tomography for the Systems with XX+YY Couplings and Z Readouts
• Efficient entanglement generation and detection of generalized stabilizer states
• Generation and decoherence of soliton spatial superposition states
• Partitioning dysprosium's electronic spin to reveal entanglement in non-classical states
• Fast and Accurate Greenberger-Horne-Zeilinger Encoding Using All-to-all Interactions
• Fast macroscopic-superposition-state generation by coherent driving
• Extreme spin squeezing for photons
• Mølmer-Sørensen entangling gate for cavity QED systems
• Modeling error correction with Lindblad dynamics and approximate channels
• A single ion as a shot noise limited magnetic field gradient probe
• Accurate and robust unitary transformation of a high-dimensional quantum system
• A generalized echo squeezing protocol with near-Heisenberg limit sensitivity and strong robustness against excess noise and variation in squeezing parameter
• Genuine Entanglement of Four Qubit Cluster Diagonal States
• Experimental characterization of quantum dynamics through many-body interactions
• Ab-initio tree-tensor-network digital twin for quantum computer benchmarking in 2D
• Noisy frequency estimation with noisy probes
• Exact Quantum Fisher Matrix Results for Distributed Phases Using Multiphoton Polarization Greenberger Horne Zeilinger States
• Efficient eigenvalue determination for arbitrary Pauli products based on generalized spin-spin interactions
• Emergence of entanglement with temperature and time in factorization-surface states
• Symmetric quantum states: a review of recent progress
• Entanglement-enhanced test proposal for local Lorentz-symmetry violation via spinor atoms
• Simultaneous measurement of DC and AC magnetic fields at the Heisenberg limit
• Many-Body Physics with Trapped Ions
• Generation of genuine multipartite entangled states via indistinguishability of identical particles
• Preparing Greenberger-Horne-Zeilinger state on ground levels of neutral atoms
• Probing nonlinear adiabatic paths with a universal integrator
• Maximizing genuine multipartite entanglement of N mixed qubits
• Probabilistic simulation of mesoscopic "Schrödinger cat" states
• Quadrupole transitions and quantum gates protected by continuous dynamic decoupling
• Optimal measurement strategies for fast entanglement detection
• Reconstructing the spatial structure of quantum correlations in materials
• Pairwise Measurement Induced Synthesis of Quantum Coherence
• Alternatives of entanglement depth and metrological entanglement criteria
• Mesoscopic and macroscopic quantum correlations in photonic, atomic and optomechanical systems
• Enhancement of Frequency Estimation by Spatially Correlated Environments
• Monogamy of Logarithmic Negativity and Logarithmic Convex-Roof Extended Negativity
• High-fidelity two-qubit quantum logic gates in a trapped-ion chain using axial motional modes
• Geometric Characterization of True Quantum Decoherence
• Cooperative engineering the multiple radio-frequency fields to reduce the X-junction barrier for ion trap chips
• Quantum error correction for long chains of trapped ions
• Generation of entanglement via squeezing on a tripartite-optomechanical system
• Bayesian-based hybrid method for rapid optimization of NV center sensors
• Quantum dissonance provide power to deterministic quantum computation with single qubit
• Achieving Heisenberg scaling by probe-ancilla interaction in quantum metrology
• Bounding the entanglement of N qubits with only four measurements
• Generating resonating valence bond states through Dicke subradiance
• Digital-Analog Counterdiabatic Quantum Optimization with Trapped Ions
• Quantum Consensus Dynamics by Entangling Maxwell Demon
• Schrödinger cat and Werner state disentanglement simulated by trapped ion systems
• Noise assisted Ramsey interferometry
• Sculpting bosonic states with arithmetic subtractions
• Suppressing nonadiabatic transitions during adiabatic generation of highly entangled states in bosonic Josephson junctions
• Non-classicality tests and entanglement witnesses for macroscopic mechanical superposition states
• Reducing Collective Quantum State Rotation Errors with Reversible Dephasing
• Phase-space elementary information content of confined Dirac spinors
• Surpassing spectator qubits with photonic modes and continuous measurement for Heisenberg-limited noise mitigation
• Heisenberg-Limited Spin-Mechanical Gravimetry
• Cold highly charged ions in a radio-frequency trap with superconducting magnetic shielding
• Quantum tomography of three-qubit generalized Werner states
• Multiple multi-control unitary operations: implementation and applications
• Macroscopic Schrödinger Cat Resistant to Particle Loss and Local Decoherence
• Analysis of patent activity in the field of quantum information processing
• Generalized spin squeezing inequalities for particles number with quantum fluctuations
• Spin Squeezing Induced Enhancement of Sensitivity of an Atomic Clock using Coherent Population Trapping
• Quantum logic spectroscopy with ions in thermal motion
• Parametrized protocol achieving the Heisenberg limit in the optical domain via dispersive atom-light interactions
• Robust control of long distance entanglement in disordered spin chains
• Conditions for superdecoherence
• Quantum gates implementations in the separated ion-traps by fast laser pulses
• Noisy Metrology: A saturable lower bound on quantum Fisher information
• Symmetry: a fundamental resource for quantum coherence and metrology
• Experimental demonstration of spontaneous symmetry breaking with emergent multi-qubit entanglement
• Spontaneous symmetry breaking in non-steady modes of open quantum many-body systems
• Localizing genuine multiparty entanglement in noisy stabilizer states
• Resource optimization for fault-tolerant quantum computing
• The design of an experimental platform for hybridization of atomic and superconducting quantum systems
• Observing a Quantum Measurement
• Critical quantum metrology robust against dissipation and non-adiabaticity
• Efficient state initialization by a quantum spectral filtering algorithm
• Quantum metrology enhanced by the $XY$ spin interaction in a generalized Tavis-Cummings model
• Quantum sensing with ultracold simulators in lattice and ensemble systems: a review
• Thermalization of the Lipkin-Meshkov-Glick model in blackbody radiation
• Practical variational tomography for critical 1D systems
• Experimentally efficient methods for estimating the performance of quantum measurements
• Preparing pure ${}^{43}$Ca${}^{+}$ samples in an ion trap with photoionization and parametric excitations
• Quantum Simulation of Non-perturbative Cavity QED with Trapped Ions
• Quantum communication with $SU(2)$ invariant separable $2\times N$ level systems
• Observation of quantum nonlocality in Greenberger-Horne-Zeilinger entanglement on a silicon chip
• Minimal criteria for continuous-variable genuine multipartite entanglement
• Quantum Vector DC Magnetometry via Selective Phase Accumulation
• Time-optimal multi-qubit gates: Complexity, efficient heuristic and gate-time bounds
• Quantum state transfer using 1D Heisenberg Hamiltonian on quasi-1D lattices
• Readout Error Mitigation for Mid-Circuit Measurements and Feedforward
• A solvable model for graph state decoherence dynamics
• Noise as a resource
• Local Decoherence-free Macroscopic Quantum states
• Generating multipartite spin states with fermionic atoms in a driven optical lattice
• Dynamical multipartite entanglement in a generalized Tavis-Cummings model with XY spin interaction
• Sub shot-noise frequency estimation with bounded a priori knowledge
• Strictly nonclassical behavior of a mesoscopic system
• Competition of decoherence and quantum speed limits for quantum-gate fidelity in the Jaynes-Cummings model
• Practical implementation of mutually unbiased bases using quantum circuits
• Ultralight dark matter detection with trapped-ion interferometry
• Achieving computational gains with quantum error-correction primitives: Generation of long-range entanglement enhanced by error detection
• Cramér-Rao bound and quantum parameter estimation with non-Hermitian systems
• Detecting and Eliminating Quantum Noise of Quantum Measurements
• Least-bias state estimation with incomplete unbiased measurements
• Entanglement in spatial adiabatic processes for interacting atoms
• Fast State Stabilization using Deep Reinforcement Learning for Measurement-based Quantum Feedback Control
• Estimating entanglement in 2D Heisenberg model in the strong rung-coupling limit
• Revealing correlated noise with single-qubit operations
• Efficient Generation of Multi-partite Entanglement between Non-local Superconducting Qubits using Classical Feedback
• Simulating the coupling of angular momenta in distant matter qubits
• Quantum Advantage in Distributed Sensing with Noisy Quantum Networks
• Boson sampling with ultracold atoms in a programmable optical lattice
• Third law of thermodynamics and the scaling of quantum computers
• Manipulation of Multipartite Entanglement in an Array of Quantum Dots
• Experimental nonlocality-based network diagnostics of mutipartite entangled states
• A protocol to create a multi-particle entangled state for quantum-enhanced sensing
• Opportunities and Limitations in Broadband Sensing
• Multi-ion Mach-Zehnder interferometer with artificial nonlinear interactions
• Ballistic Entanglement Cloud after a Boundary Quench
• How many lives does Schrödinger's cat have?
• Greenberger-Horne-Zeilinger-based quantum private comparison protocol with bit-flipping
• Preparing Greenberger-Horne-Zeilinger Entangled Photon Fock States of Three Cavities Coupled by a Superconducting Flux Qutrit
• Single-step multipartite entangled states generation from coupled circuit cavities
• Bayesian optimization of non-classical optomechanical correlations
• Enhancement of sensitivity near exceptional points in dissipative qubit-resonator systems
• Precise and extensive characterization of an optical resonator for cavity-based quantum networks
• Robustness of the projected squeezed state protocol
• Bayesian Frequency Metrology with Optimal Ramsey Interferometry in Optical Atomic Clocks
• Paradigms for Quantum Feedback Control
• Lieb-Mattis states for robust entangled differential phase sensing
• Direct measurement of large-scale quantum states
• Generation of multi-photon entanglement
• Approaching the double-Heisenberg scaling sensitivity in the Tavis-Cummings model
• Generating large-scale Greenberger-Horne-Zeilinger-like states in lattice spin systems
• Hong-Ou-Mandel interference of more than 10 indistinguishable atoms
• Quantum Phase Estimation Algorithm with Gaussian Spin States
• Generating Entanglement between Atomic Spins with Low-Noise Probing of an Optical Cavity
• Emergence of quasiperiodic behavior in transport and hybridization properties of clean lattice systems
• Characterization and generation of a SQL-beating catlike state through repetitive measurements
• Special-Purpose Quantum Processor Design
• Photonic quantum information with time-bins: Principles and applications
• Quantum nature of gravity in a Bose-Einstein condensate
• An open-endcap blade trap for radial-2D ion crystals
• Transmission and generation of arbitrary W states via an optomechanical interface
• Scaling laws for the sensitivity enhancement of non-Gaussian spin states
• Nontraditional Deterministic Remote State Preparation Using a Non-Maximally Entangled Channel without Additional Quantum Resources
• Multiqubit Greenberger-Horne-Zeilinger state generated by synthetic magnetic field in circuit QED
• Conditional steering under von-Neumann scenario
• Measure of tripartite quantum correlation in multiqubit symmetric pure state
• Deterministic quantum correlation between coherently paired photons acting on a beam splitter
• Quantum Computation