Universal control of a bosonic mode via drive-activated native cubic interactions
arXiv:2308.15320 · doi:10.1038/s41467-024-46507-1
Abstract
Linear bosonic modes offer a hardware-efficient alternative for quantum information processing but require access to some nonlinearity for universal control. The lack of nonlinearity in photonics has led to encoded measurement-based quantum computing, which rely on linear operations but requires access to resourceful ('nonlinear') quantum states, such as cubic phase states. In contrast, superconducting microwave circuits offer engineerable nonlinearities but suffer from static Kerr nonlinearity. Here, we demonstrate universal control of a bosonic mode composed of a superconducting nonlinear asymmetric inductive element (SNAIL) resonator, enabled by native nonlinearities in the SNAIL element. We suppress static nonlinearities by operating the SNAIL in the vicinity of its Kerr-free point and dynamically activate nonlinearities up to third order by fast flux pulses. We experimentally realize a universal set of generalized squeezing operations, as well as the cubic phase gate, and exploit them to deterministically prepare a cubic phase state in 60 ns. Our results initiate the experimental field of universal continuous-variables quantum computing.
11 pages, 6 figures and supplementary materials
References in corpus (21)
- Charge insensitive qubit design derived from the Cooper pair box
- Suppressing quantum errors by scaling a surface code logical qubit
- Effective Hamiltonian Theory and Its Applications in Quantum Information
- Real-time quantum error correction beyond break-even
- Decoherence of flux qubits due to 1/f flux noise
- Decoherence benchmarking of superconducting qubits
- Blueprint for a Scalable Photonic Fault-Tolerant Quantum Computer
- Fast Universal Control of an Oscillator with Weak Dispersive Coupling to a Qubit
- Quantum control of bosonic modes with superconducting circuits
- Kerr-free three-wave mixing in superconducting quantum circuits
- High efficiency coherent microwave-to-optics conversion via off-resonant scattering
- Robust preparation of Wigner-negative states with optimized SNAP-displacement sequences
- Quantum control of a cat-qubit with bit-flip times exceeding ten seconds
- On the static effective Hamiltonian of a rapidly driven nonlinear system
- High-fidelity parametric beamsplitting with a parity-protected converter
- Observation and manipulation of quantum interference in a superconducting Kerr parametric oscillator
- Three-wave mixing traveling-wave parametric amplifier with periodic variation of the circuit parameters
- Frequency-tunable Kerr-free three-wave mixing with a gradiometric SNAIL
- Effects of surface treatments on flux tunable transmon qubits
- Teleportation with a cubic phase gate
- Coarse grained intermolecular interactions on quantum processors
Cited by in corpus (27)
- Simulating Chemistry on Bosonic Quantum Devices
- Hybrid Oscillator-Qubit Quantum Processors: Instruction Set Architectures, Abstract Machine Models, and Applications
- Driven Multiphoton Qubit-Resonator Interactions
- Entangling Schrödinger's cat states by bridging discrete- and continuous-variable encoding
- Steady-state entanglement production in a quantum thermal machine with continuous feedback control
- Universal Control in Bosonic Systems with Weak Kerr Nonlinearities
- Quantum squeezing amplification with a weak Kerr nonlinear oscillator
- Photon counting statistics in Gaussian bosonic networks
- Holographic Gaussian Boson Sampling with Matrix Product States on 3D cQED Processors
- Properties and dynamics of generalized squeezed states
- Engineering Bosonic Codes with Quantum Lattice Gates
- Nonlinear Phase Gates as Airy Transforms of the Wigner Function
- Qibosoq: an open-source framework for quantum circuit RFSoC programming
- Protected phase gate for the - qubit using its internal modes
- A Linear Quantum Coupler for Clean Bosonic Control
- A Mathematical Structure for Amplitude-Mixing Error-Transparent Gates for Binomial Codes
- Symmetry induced enhancement in finite-time thermodynamic trade-off relations
- Unitary-transformed projective squeezing: applications for circuit-knitting and state-preparation of non-Gaussian states
- Systematic Construction of Time-Dependent Hamiltonians for Microwave-Driven Josephson Circuits
- Refrigeration of a 1D gas of microwave photons
- Multimode rotationally symmetric bosonic codes from group-theoretic construction
- The symplectic rank of non-Gaussian quantum states
- Automated discovery and optimization of autonomous quantum error correction codes for a general open quantum system
- Direct estimation of arbitrary observables of an oscillator
- Exact amplitudes of parametric processes in driven Josephson circuits
- Single-Period Floquet Control of Bosonic Codes with Quantum Lattice Gates
- Sequential information theoretic protocols in continuous variable systems