Ultrafast Gates for Single Atomic Qubits

Abstract

We demonstrate single qubit operations on a trapped atom hyperfine qubit using a single ultrafast pulse from a mode-locked laser. We shape the pulse from the laser and perform a pi rotation of the qubit in less than 50 ps with a population transfer exceeding 99% and negligible effects from spontaneous emission or ac Stark shifts. The gate time is significantly shorter than the period of atomic motion in the trap (Rabi frequency / trap frequency > 10000), demonstrating that this interaction takes place deep within the strong excitation regime.

10 pages, 3 figures

References in corpus (14)

• Dynamical suppression of decoherence in two-state quantum systems
• Efficient high-fidelity quantum computation using matter qubits and linear optics
• Fault-Tolerant Quantum Dynamical Decoupling
• Quantum Teleportation Between Distant Matter Qubits
• Manipulation and Detection of a Trapped Yb+ Ion Hyperfine Qubit
• Using Parity Kicks for Decoherence Control
• Fast and robust two-qubit gates for scalable ion trap quantum computing
• Quantum information processing with trapped ions
• Errors in trapped-ion quantum gates due to spontaneous photon scattering
• Entanglement of Atomic Qubits using an Optical Frequency Comb
• Scaling Ion Trap Quantum Computation through Fast Quantum Gates
• Trapped ions in the strong excitation regime: ion interferometry and non--classical states
• Ultrafast control of donor-bound electron spins with single detuned optical pulses
• Superfast Cooling

Cited by in corpus (86)

• Trapped-Ion Quantum Computing: Progress and Challenges
• Natural and artificial atoms for quantum computation
• Deep Strong Coupling Regime of the Jaynes-Cummings model
• Emergence and Frustration of Magnetic Order with Variable-Range Interactions in a Trapped Ion Quantum Simulator
• Onset of a Quantum Phase Transition with a Trapped Ion Quantum Simulator
• Microwave quantum logic gates for trapped ions
• Single ion-qubit exceeding one hour coherence time
• Single-qubit quantum memory exceeding $10$-minute coherence time
• Ultrafast and Fault-Tolerant Quantum Communication across Long Distances
• Ultrafast Quantum Gates in Circuit QED
• Optimal quantum control of multi-mode couplings between trapped ion qubits for scalable entanglement
• Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale
• Coherent Error Suppression in Multi-Qubit Entangling Gates
• Multi-Species Trapped Ion Node for Quantum Networking
• Ultrafast Spin-Motion Entanglement and Interferometry with a Single Atom
• Demonstration of two-atom entanglement with ultrafast optical pulses
• Simulating the performance of a distance-3 surface code in a linear ion trap
• Experimental Performance of a Quantum Simulator: Optimizing Adiabatic Evolution and Identifying Many-Body Ground States
• Dispersive optical systems for scalable Raman driving of hyperfine qubits
• Noise Analysis for High-Fidelity Quantum Entangling Gates in an Anharmonic Linear Paul Trap
• Demonstration of quantum brachistochrones between distant states of an atom
• Rotation sensing with trapped ions
• The Quantum Speed Limit of Optimal Controlled Phasegates for Trapped Neutral Atoms
• Fast quantum control and light-matter interactions at the 10,000 quanta level
• Quantum Control of Qubits and Atomic Motion Using Ultrafast Laser Pulses
• Optical spin locking of a solid-state qubit
• Ball-grid array architecture for microfabricated ion traps
• Transversality and lattice surgery: exploring realistic routes towards coupled logical qubits with trapped-ion quantum processors
• Engineering Large Stark Shifts for Control of Individual Clock State Qubits
• Fast, high-fidelity addressed single-qubit gates using efficient composite pulse sequences
• Radial two-dimensional ion crystals in a linear Paul trap
• Quantum Catalysis of Magnetic Phase Transitions in a Quantum Simulator
• Analytically solvable many-body Rosen-Zener quantum battery
• Non-thermalization in trapped atomic ion spin chains
• Sensing Atomic Motion from the Zero Point to Room Temperature with Ultrafast Atom Interferometry
• Experimental simulation and limitations of quantum walks with trapped ions
• Optimised fast gates for quantum computing with trapped ions
• Quantum quenches of ion Coulomb crystals across structural instabilities
• Deterministic generation of multidimensional photonic cluster states using time-delay feedback
• High fidelity quantum gates via analytically solvable pulses
• Continuous variables quantum computation over the vibrational modes of a single trapped ion
• Equivalence between Redfield and master equation approaches for a time-dependent quantum system and coherence control
• Detection of out-of-time-order correlators and information scrambling in cold atoms: Ladder-XX model
• Quantum walk of a Bose-Einstein condensate in the Brillouin zone
• Trapped ion scaling with pulsed fast gates
• A Study on Fast Gates for Large-Scale Quantum Simulation with Trapped Ions
• Ultrafast coherent excitation of a Ca${}^{+}$ ion
• Comparison of ancilla preparation and measurement procedures for the Steane [[7,1,3]] code on a model ion trap quantum computer
• Avoiding leakage and errors caused by unwanted transitions in Lambda systems
• Ultrafast, high repetition rate, ultraviolet, fiber based laser source: application towards Yb+ fast quantum-logic
• Optimisation of two-dimensional ion trap arrays for quantum simulation
• Pulsed Quantum-State Reconstruction of Dark Systems
• Fast entangling gates in long ion chains
• Entangling gates for trapped-ion quantum computation and quantum simulation
• Multi-GHz repetition rate, multi-watt average power, ultraviolet laser pulses for fast trapped-ion entanglement operations
• Stability thresholds and calculation techniques for fast entangling gates on trapped ions
• Three-dimensional matter-wave interferometry of a trapped single ion
• Trapping Single Ions and Coulomb Crystals with Light Fields
• Ultra-fast two-qubit ion gate using sequences of resonant pulses
• Ultra-short strong excitation of two-level systems
• Photo-induced charge carrier dynamics in a semiconductor-based ion trap investigated via motion-sensitive qubit transitions
• Analysis of photon-mediated entanglement between distinguishable matter qubits
• Scalable quantum computation with fast gates in two-dimensional microtrap arrays of trapped ions
• Generation of entangled matter qubits in two opposing parabolic mirrors
• Subpicosecond $X$ rotations of atomic clock states
• Phase-coherent detection of an optical dipole force by Doppler velocimetry
• Quantum Operations: technical or fundamental challenge?
• Leakage suppression by ultrafast pulse shaping
• Micromotion compensation of trapped ions by qubit transition and direct scanning of dc voltages
• Fast mixed-species quantum logic gates for trapped-ion quantum networks
• Precision Polarization Tuning for Light Shift Mitigation in Trapped-Ion Qubits
• Qubit dynamics driven by smooth pulses of finite duration
• Quantum computing hardware in the cloud: Should a computational chemist care?
• Ultrafast coherent excitation of an Ytterbium ion with single laser pulses
• Ultrafast time-scale Berry-phase gates of atomic clock states
• Measuring molecular electric dipoles using trapped atomic ions and ultrafast laser pulses
• High-speed and high-connectivity two-qubit gates in long chains of trapped ions
• Phase Stabilization of a Frequency Comb using Multipulse Quantum Interferometry
• Ultralight dark matter detection with trapped-ion interferometry
• Towards Quantum Logic Inspired Cooling and Detection for Single (Anti-)Protons
• Realization and Calibration of Continuously Parameterized Two-Qubit Gates on a Trapped-Ion Quantum Processor
• Error-Resilient Fast Entangling Gates for Scalable Ion-Trap Quantum Processors
• Individual addressing of ion qubits with counter-propagating optical frequency combs
• Ion-Based Characterization of Laser Beam Profiles for Quantum Information Processing
• Simultaneous control of populations and coherence phase of open two-level quantum systems with a single pulse
• Effect of Closely-Spaced Excited States on Electromagnetically Induced Transparency