Versatile microwave-driven trapped ion spin system for quantum information processing

Abstract

Using trapped atomic ions we demonstrate a tailored and versatile effective spin-system suitable for quantum simulations and universal quantum computation. By simply applying microwave pulses, selected spins can be decoupled from the remaining system and thus can serve as a quantum memory, while simultaneously, other coupled spins perform conditional quantum dynamics. Also, microwave pulses can change the sign of spin-spin couplings, as well as their effective strength, even during the course of a quantum algorithm. Taking advantage of the simultaneous long-range coupling between three spins a coherent quantum Fourier transform -- an essential building block for many quantum algorithms -- is efficiently realized. This approach, which is based on microwave-driven trapped ions and is complementary to laser-based methods, opens a new route to overcoming technical and physical challenges in the quest for a quantum simulator and a quantum computer.

Published version. 22 pages, 5 figures

References in corpus (15)

• Quantum Computing
• Quantum algorithm for solving linear systems of equations
• High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit
• Quantum Data Fitting
• Blueprint for a microwave trapped-ion quantum computer
• Robust dynamical decoupling for quantum computing and quantum memory
• Trapped-ion quantum logic gates based on oscillating magnetic fields
• Individual addressing of trapped ions and coupling of motional and spin states using rf radiation
• Laserless trapped-ion quantum simulations without spontaneous scattering using microtrap arrays
• Sideband cooling and coherent dynamics in a microchip multi-segmented ion trap
• Analog Quantum Simulation of (1+1)D Lattice QED with Trapped Ions
• Compiling gate networks on an Ising quantum computer
• State selective detection of hyperfine qubits
• Simplified implementation of the quantum Fourier transform with Ising-type Hamiltonians: Example with ion traps
• Quantum measurements and new concepts for experiments with trapped ions

Cited by in corpus (26)

• Programmable Quantum Simulations of Spin Systems with Trapped Ions
• Analog Quantum Simulation of (1+1)D Lattice QED with Trapped Ions
• Realizing coherently convertible dual-type qubits with the same ion species
• Connecting nth order generalised quantum Rabi models: Emergence of nonlinear spin-boson coupling via spin rotations
• High-Fidelity Preservation of Quantum Information During Trapped-Ion Transport
• Speeding-up the decision making of a learning agent using an ion trap quantum processor
• Pulsed Dynamical Decoupling for Fast and Robust Two-Qubit Gates on Trapped Ions
• Synthesis of and compilation with time-optimal multi-qubit gates
• Trapping electrons in a room-temperature microwave Paul trap
• Quantum control methods for robust entanglement of trapped ions
• Quantum dynamics of trapped ions in a dynamic field gradient using dressed states
• Genuine temporal correlations can certify the quantum dimension
• Deterministic generation of hybrid high-N00N states with Rydberg ions trapped in microwave cavities
• Robust Two-Qubit Gates Using Pulsed Dynamical Decoupling
• Radio-frequency sideband cooling and sympathetic cooling of trapped ions in a static magnetic field gradient
• Quantum Transport of Energy in Controlled Synthetic Quantum Magnets
• Hybrid Microwave Radiation Patterns for High-Fidelity Quantum Gates with Trapped Ions
• Rephasing efficiency of sequences of phased pulses in spin-echo and light-storage experiments
• Phase-adaptive dynamical decoupling methods for robust spin-spin dynamics in trapped ions
• Distinguishing between statistical and systematic errors in quantum process tomography
• Surface-electrode trap with an integrated permanent magnet for generating a magnetic-field gradient at trapped ions
• Magnetic field fluctuations analysis for the ion trap implementation of the quantum Rabi model in the the deep strong coupling regime
• General, efficient, and robust Hamiltonian engineering
• The role of higher-order terms in trapped-ion quantum computing with magnetic gradient induced coupling
• Robust entanglement by continuous dynamical decoupling of the J-coupling interaction
• Optimal quantum spatial search with one-dimensional long-range interactions