Quantum walks on a programmable two-dimensional 62-qubit superconducting processor
arXiv:2102.02573 · doi:10.1126/science.abg7812
Abstract
Quantum walks are the quantum mechanical analogue of classical random walks and an extremely powerful tool in quantum simulations, quantum search algorithms, and even for universal quantum computing. In our work, we have designed and fabricated an 8x8 two-dimensional square superconducting qubit array composed of 62 functional qubits. We used this device to demonstrate high fidelity single and two particle quantum walks. Furthermore, with the high programmability of the quantum processor, we implemented a Mach-Zehnder interferometer where the quantum walker coherently traverses in two paths before interfering and exiting. By tuning the disorders on the evolution paths, we observed interference fringes with single and double walkers. Our work is an essential milestone in the field, brings future larger scale quantum applications closer to realization on these noisy intermediate-scale quantum processors.
arXiv comment13 pages, 4 figures, and supplementary materials with 21 pages, 13 figures and 1 table
References in corpus (19)
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Quantum computational advantage using photons
- A Quantum Random Walk Search Algorithm
- Universal computation by quantum walk
- Quantum walks of correlated particles
- Light-cone-like spreading of correlations in a quantum many-body system
- Spatial search by quantum walk
- Quantum Walk in Position Space with Single Optically Trapped Atoms
- Realization of a quantum walk with one and two trapped ions
- Quantum walk of a trapped ion in phase space
- Universal computation by multi-particle quantum walk
- Continuous-Time Quantum Walks: Models for Coherent Transport on Complex Networks
- Experimental Implementation of Discrete Time Quantum Random Walk on an NMR Quantum Information Processor
- Faster quantum walk algorithm for the two dimensional spatial search
- Quantum Walk of Two Interacting Bosons
- Direct Probe of Topological Invariants Using Bloch Oscillating Quantum Walks
- Error tolerance of the BosonSampling model for linear optics quantum computing
- Information propagation through quantum chains with fluctuating disorder
- Bose-Hubbard model for universal quantum walk-based computation
Cited by in corpus (142)
- Strong quantum computational advantage using a superconducting quantum processor
- Probing quantum information propagation with out-of-time-ordered correlators
- Noisy intermediate-scale quantum computers
- Closing the "Quantum Supremacy" Gap: Achieving Real-Time Simulation of a Random Quantum Circuit Using a New Sunway Supercomputer
- Quantum control of bosonic modes with superconducting circuits
- Chiral Quantum Network with Giant Atoms
- Tweezer-programmable 2D quantum walks in a Hubbard-regime lattice
- Building Blocks of a Flip-Chip Integrated Superconducting Quantum Processor
- Entanglement purification and protection in a superconducting quantum network
- Quantum transport and localization in 1d and 2d tight-binding lattices
- Quantum simulation of Hawking radiation and curved spacetime with a superconducting on-chip black hole
- Multicore Quantum Computing
- Observation of critical phase transition in a generalized Aubry-André-Harper model on a superconducting quantum processor with tunable couplers
- Building a large-scale quantum computer with continuous-variable optical technologies
- Review on Quantum Walk Computing: Theory, Implementation, and Application
- Overcoming I/O bottleneck in superconducting quantum computing: multiplexed qubit control with ultra-low-power, base-temperature cryo-CMOS multiplexer
- Exceptional entanglement phenomena: non-Hermiticity meeting non-classicality
- Experimental quantum advantage with quantum coupon collector
- Demonstration of dynamical control of three-level open systems with a superconducting qutrit
- High Coherence in a Tileable 3D Integrated Superconducting Circuit Architecture
- Robust and Efficient Hamiltonian Learning
- Probing Operator Spreading via Floquet Engineering in a Superconducting Circuit
- Ultra-long quantum walks via spin-orbit photonics
- Double-Transmon Coupler: Fast Two-Qubit Gate with No Residual Coupling for Highly Detuned Superconducting Qubits
- Quantum Error Mitigated Classical Shadows
- Quantum walks of two correlated photons in a 2D synthetic lattice
- Flat-band localization and interaction-induced delocalization of photons
- Simulating large-size quantum spin chains on cloud-based superconducting quantum computers
- Quantum Neuronal Sensing of Quantum Many-Body States on a 61-Qubit Programmable Superconducting Processor
- Perturbative quantum simulation
- Vacuum-gap transmon qubits realized using flip-chip technology
- Error statistics and scalability of quantum error mitigation formulas
- Quantum reservoir computation utilising scale-free networks
- Modular tunable coupler for superconducting qubits
- Quantum Capsule Networks
- Tunable coupler to fully decouple and maximally localize superconducting qubits
- Implementing a synthetic magnetic vector potential in a 2D superconducting qubit array
- Enhanced quantum state transfer: Circumventing quantum chaotic behavior
- Controlled-Controlled-Phase Gates for Superconducting Qubits Mediated by a Shared Tunable Coupler
- Training variational quantum circuits with CoVaR: covariance root finding with classical shadows
- Stark many-body localization transitions in superconducting circuits
- Fundamental Limitation on the Detectability of Entanglement
- Reinforcement Learning Assisted Recursive QAOA
- Beyond hard-core bosons in transmon arrays
- Quantum verification and estimation with few copies
- TenCirChem: An Efficient Quantum Computational Chemistry Package for the NISQ Era
- Two-qubit gate using conditional driving for highly detuned Kerr-nonlinear parametric oscillators
- Control and mitigation of microwave crosstalk effect with superconducting qubits
- Link prediction with continuous-time classical and quantum walks
- Robust Quantum Walk Search Without Knowing the Number of Marked Vertices
- Tunable Coupling Architectures with Capacitively Connecting Pads for Large-Scale Superconducting Multi-Qubit Processors
- Sharing Quantum Nonlocality in Star Network Scenarios
- Controlled flow of excitations in a ring-shaped network of Rydberg atoms
- Long-Range Interaction via Resonator-Induced Phase in Superconducting Qubits
- Synthetic multi-dimensional Aharonov-Bohm cages in Fock state lattices
- Cryogenic Multiplexing Control Chip for Superconducting Quantum Processor
- Quantum separability criteria based on realignment moments
- Strongly interacting photons in 2D waveguide QED
- Parity Quantum Optimization: Encoding Constraints
- Strategies to simulate dephasing-assisted quantum transport on digital quantum computers
- Emergence of steady quantum transport in a superconducting processor
- On Quantum Speedups for Nonconvex Optimization via Quantum Tunneling Walks
- Quantum walks on random lattices: Diffusion, localization and the absence of parametric quantum speed-up
- Multi-qubit quantum computing using discrete-time quantum walks on closed graphs
- Impact of the form of weighted networks on the quantum extreme reservoir computation
- Fermionic Simulators for Enhanced Scalability of Variational Quantum Simulation
- Native Conditional SWAP Operation with Superconducting Artificial Atoms
- Piezo-optomechanical signal transduction using Lamb wave supermodes in a suspended Gallium Arsenide photonic integrated circuits platform
- Deterministic generation of shaped single microwave photons using a parametrically driven coupler
- Bound photonic pairs in 2D waveguide quantum electrodynamics
- Universal quantum state preparation via revised greedy algorithm
- Quantum generative adversarial learning in photonics
- Quarter-wave Resonator Based Tunable Coupler for Xmon Qubits
- SQ-CARS: A Scalable Quantum Control and Readout System
- Control the qubit-qubit coupling in the superconducting circuit with double-resonator couplers
- A generic framework for genuine multipartite entanglement detection
- Long-range multipartite quantum correlations and factorization in a one-dimensional spin-1/2 chain
- Chiral SQUID-metamaterial waveguide for circuit-QED
- Nonlinear flip-flop quantum walks through potential barriers
- Characterization of Broadband Purcell Filters with Compact Footprint for Fast Multiplexed Superconducting Qubit Readout
- Experimental Quantum Simulation of Dynamic Localization on Curved Photonic Lattices
- Tunable compact on-chip superconducting switch
- Variational quantum simulation of long-range interacting systems
- Phase-transition-like behavior in information retrieval of a quantum scrambled random circuit system
- Superconducting Quantum Simulation for Many-Body Physics beyond Equilibrium
- Partial Transpose Moments, Principal Minors and Entanglement Detection
- Coherent spatial control of wave packet dynamics on quantum lattices
- Optimal control of large quantum systems: assessing memory and runtime performance of GRAPE
- Kernel-Function Based Quantum Algorithms for Finite Temperature Quantum Simulation
- Saturable Purcell filter for circuit quantum electrodynamics
- Enhancing strength and range of atom-atom interaction in a coupled-cavity array via parametric drives
- Quantum walk state transfer on a hypercube
- Effect of quantum error correction on detection-induced coherent errors
- Using the inductive-energy participation ratio to characterize a superconducting quantum chip
- Decoherence in the three-state quantum walk
- Heralding entangled optical photons from a microwave quantum processor
- Quasiparticle Dynamics in Superconducting Quantum-Classical Hybrid Circuits
- Universal quantum computation using atoms in cross-cavity systems
- Scoring Anomalous Vertices Through Quantum Walks
- Encoded probabilistic imaginary-time evolution on a trapped-ion quantum computer for ground and excited states of spin qubits
- Controllable non-Hermitian qubit-qubit Coupling in Superconducting quantum Circuit
- Detecting Confined and Deconfined Spinons in Dynamical Quantum Simulations
- Demonstration of Discrete-Time Quantum Walks and Observation of Topological Edge States in a Superconducting Qutrit Chain
- Effective Hamiltonian approach to the quantum phase transitions in the extended Jaynes-Cummings model
- Perspective on witnessing entanglement in hybrid quantum systems
- Topological Thouless pumping in arrays of coupled spin chains
- Multi-channel quantum noise suppression and phase-sensitive modulation in a hybrid optical resonant cavity system
- Vulnerability of fault-tolerant topological quantum error correction to quantum deviations in code space
- Control and readout of a transmon using a compact superconducting resonator
- One-step implementation of nonadiabatic geometric fSim gate in superconducting circuits
- Full Characterization of the Depth Overhead for Quantum Circuit Compilation with Arbitrary Qubit Connectivity Constraint
- Quantum Enhanced Sensitivity through Many-Body Bloch Oscillations
- Suppressing chaos with mixed superconducting qubit devices
- SuperGrad: a differentiable simulator for superconducting processors
- Expanding Hardware-Efficiently Manipulable Hilbert Space via Hamiltonian Embedding
- Quantum walk for SU(1,1)
- QSteed: A Resource-Virtualized and Hardware-Aware Quantum Compilation Framework for Real Quantum Computing Processors
- Full control of superconducting qubits with combined on-chip microwave and flux lines
- Escaping Local Minima with Quantum Coherent Cooling
- Tuning and Amplifying the Interactions in Superconducting Quantum Circuits with Subradiant Qubits
- High-Fidelity Coherent-One-Way QKD Simulation Framework for 6G Networks: Bridging Theory and Reality
- Experimental observation of exact quantum critical states
- Programmable non-Hermitian photonic quantum walks via dichroic metasurfaces
- Time reversal symmetry protected chaotic fixed point in the quench dynamics of a topological -wave superfluid
- Optimization for the propagation of a multiparticle quantum walk in a one-dimensional lattice
- Quantum walk mixing is faster than classical on periodic lattices
- Ballistic Entanglement Cloud after a Boundary Quench
- Fermionic transport through a driven quantum point contact: breakdown of Floquet thermalization beyond a critical driving frequency
- Tunable Hybrid-Mode Coupler Enabling Strong Interactions between Transmons at Centimeter-Scale Distance
- Quantum Magic in Discrete-Time Quantum Walk
- Loss-induced quantum nonreciprocity and entanglement in superconducting qubits
- Reshaping coupled bosonic networks: A bipartite-graph framework for optimal quantum excitation transfer
- Many-body quantum dimerization in 2D atomic arrays
- Revisiting quantum walk advantages: A mean hitting time perspective
- Topology-Aware Block Coordinate Descent for Qubit Frequency Allocation of Superconducting Quantum Processors
- Control the qubit-qubit coupling with double superconducting resonators
- Approximate quantum gates compiling with self-navigation algorithm
- Long-range bipartite entanglement in XXZ spin chains with the exponential and power-law long-range interactions
- Geometric and holonomic quantum computation
- Photon-Number Conserved Universal Quantum Logic Employing Continuous-Time Quantum Walk on Dual-Rail Qubit Arrays
- Response to glassy disorder in coin on spread of quantum walker
- Remote entanglement generation via enhanced quantum state transfer