Variational generation of spin squeezing on one-dimensional quantum devices with nearest-neighbor interactions

Abstract

Efficient preparation of spin-squeezed states is important for quantum-enhanced metrology. Current protocols for generating strong spin squeezing rely on either high dimensionality or long-range interactions. A key challenge is how to generate considerable spin squeezing in one-dimensional systems with only nearest-neighbor interactions. Here, we develop variational spin-squeezing algorithms to solve this problem. We consider both digital and analog quantum circuits for these variational algorithms. After the closed optimization loop of the variational spin-squeezing algorithms, the generated squeezing can be comparable to the strongest squeezing created from two-axis twisting. By analyzing the experimental imperfections, the variational spin-squeezing algorithms proposed in this work are feasible in recent developed noisy intermediate-scale quantum computers.

References in corpus (66)

• Supplementary information for "Quantum supremacy using a programmable superconducting processor"
• Quantum sensing
• Advances in Quantum Metrology
• The density-matrix renormalization group
• Variational Quantum Algorithms
• Hardware-efficient Variational Quantum Eigensolver for Small Molecules and Quantum Magnets
• The theory of variational hybrid quantum-classical algorithms
• Noisy intermediate-scale quantum (NISQ) algorithms
• Quantum metrology with nonclassical states of atomic ensembles
• Microwave photonics with superconducting quantum circuits
• Strong quantum computational advantage using a superconducting quantum processor
• Many-Body Physics with Individually-Controlled Rydberg Atoms
• Cost Function Dependent Barren Plateaus in Shallow Parametrized Quantum Circuits
• On the Improvement of Frequency Stardards with Quantum Entanglement
• Many-particle entanglement with Bose--Einstein condensates
• Nonlinear atom interferometer surpasses classical precision limit
• Atom chip based generation of entanglement for quantum metrology
• Expressibility and entangling capability of parameterized quantum circuits for hybrid quantum-classical algorithms
• Quantum spin squeezing
• Quantum optimization using variational algorithms on near-term quantum devices
• Self-Verifying Variational Quantum Simulation of the Lattice Schwinger Model
• Demonstration of multi-qubit entanglement and algorithms on a programmable neutral atom quantum computer
• Quantum spin dynamics and entanglement generation with hundreds of trapped ions
• Quantum computing with neutral atoms
• Spectral signatures of many-body localization with interacting photons
• Quantum Approximate Optimization of Non-Planar Graph Problems on a Planar Superconducting Processor
• Fisher Information and entanglement of non-Gaussian spin states
• Quantum Simulation of Electronic Structure with Linear Depth and Connectivity
• On the Entangling Power of Quantum Evolutions
• A quantum-enhanced search for dark matter axions
• Observation of multi-component atomic Schrödinger cat states of up to 20 qubits
• Waveguide Quantum Electrodynamics with Giant Superconducting Artificial Atoms
• Demonstrating a Continuous Set of Two-qubit Gates for Near-term Quantum Algorithms
• Information Scrambling in Computationally Complex Quantum Circuits
• Low-decoherence flux qubit
• Squeezed-Light Optical Magnetometry
• Coherent many-body spin dynamics in a long-range interacting Ising chain
• Optimal metrology with programmable quantum sensors
• Preparing and probing atomic number states with an atom interferometer
• Spin squeezing in a Rydberg lattice clock
• Probing the dynamical phase transition with a superconducting quantum simulator
• Variational spin-squeezing algorithms on programmable quantum sensors
• Realizing spin squeezing with Rydberg interactions in a programmable optical clock
• Spin squeezing: transforming one-axis-twisting into two-axis-twisting
• Scalable spin squeezing in a dipolar Rydberg atom array
• Observation of a symmetry-protected topological time crystal with superconducting qubits
• Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas
• Quantum Simulation of the Ultrastrong Coupling Dynamics in Circuit QED
• Diabatic gates for frequency-tunable superconducting qubits
• Sudden vanishing of spin squeezing under decoherence
• Expressibility of the alternating layered ansatz for quantum computation
• Scaling of the quantum approximate optimization algorithm on superconducting qubit based hardware
• Digital-Analog Quantum Computation
• Quantum Variational Optimization of Ramsey Interferometry and Atomic Clocks
• Metrological Nonlinear Squeezing Parameter
• Spin squeezing with short-range spin-exchange interactions
• Accurately computing electronic properties of a quantum ring
• Observation of thermalization and information scrambling in a superconducting quantum processor
• One- and two-axis squeezing of atomic ensembles in optical cavities
• One- and two-axis squeezing via laser coupling in an atomic Fermi-Hubbard model
• Metrological characterisation of non-Gaussian entangled states of superconducting qubits
• Strong Spin Squeezing Induced by Weak Squeezing of Light inside a Cavity
• Two-axis spin squeezing of two-component BEC via a continuous driving
• Two-axis-twisting spin squeezing by multi-pass quantum erasure
• Spin squeezing by one-photon-two-atom excitations processes in atomic ensembles
• Preparation of Metrological States in Dipolar-Interacting Spin Systems

Cited by in corpus (4)

• Generation of scalable many-body Bell correlations in spin chains with short-range two-body interactions
• Photonic quantum metrology with variational quantum optical non-linearities
• Digital-analog quantum convolutional neural networks for image classification
• Simulating methylamine using symmetry adapted qubit-excitation-based variational quantum eigensolver