$\text{omg}$ Blueprint for trapped ion quantum computing with metastable states

Abstract

Quantum computers, much like their classical counterparts, will likely benefit from flexible qubit encodings that can be matched to different tasks. For trapped ion quantum processors, a common way to access multiple encodings is to use multiple, co-trapped atomic species. Here, we outline an alternative approach that allows flexible encoding capabilities in single-species systems through the use of long-lived metastable states as an effective, programmable second species. We describe the set of additional trapped ion primitives needed to enable this protocol and show that they are compatible with large-scale systems that are already in operation.

References in corpus (20)

• Experimental issues in coherent quantum-state manipulation of trapped atomic ions
• Trapped-Ion Quantum Computing: Progress and Challenges
• Realization of a scalable Shor algorithm
• Ion-trap quantum logic using long-wavelength radiation
• Trapped-ion quantum logic gates based on oscillating magnetic fields
• Sympathetic cooling of ${}^{9}B{e}^{+}$ and ${}^{24}M{g}^{+}$ for quantum logic
• Errors in trapped-ion quantum gates due to spontaneous photon scattering
• Multi-Element Logic Gates for Trapped-Ion Qubits
• Normal modes of trapped ions in the presence of anharmonic trap potentials
• Sympathetic Cooling of Mixed Species Two-Ion Crystals for Precision Spectroscopy
• High fidelity manipulation of a qubit built from a synthetic nucleus
• Realizing coherently convertible dual-type qubits with the same ion species
• Benchmarking a high-fidelity mixed-species entangling gate
• Dual-Species, Multi-Qubit Logic Primitives for Ca+/Sr+ Trapped-Ion Crystals
• Fast transport of mixed-species ion chains within a Paul trap
• The Character of Motional Modes for Entanglement and Sympathetic Cooling of Mixed-Species Trapped Ion Chains
• A high fidelity light-shift gate for clock-state qubits
• Experimental recovery of a qubit from partial collapse
• Hyperfine-induced electric dipole contributions to the electric octupole and magnetic quadrupole atomic clock transitions
• Hyperfine structure of ${}^{173}{\mathrm{Yb}}^{+}$: toward resolving the ${}^{173}\mathrm{Yb}$ nuclear octupole moment puzzle

Cited by in corpus (42)

• High-fidelity gates with mid-circuit erasure conversion in a metastable neutral atom qubit
• Erasure conversion for fault-tolerant quantum computing in alkaline earth Rydberg atom arrays
• Noisy intermediate-scale quantum computers
• Quantum Error Correction with Metastable States of Trapped Ions Using Erasure Conversion
• High fidelity state preparation and measurement of ion hyperfine qubits with I > 1/2
• Repetitive readout and real-time control of nuclear spin qubits in ${}^{171}$Yb atoms
• Analyzing the Rydberg-based omg architecture for ${}^{171}$Yb nuclear spins
• Measuring Arbitrary Physical Properties in Analog Quantum Simulation
• Quantum Simulation of Spin-Boson Models with Structured Bath
• Active cancellation of servo-induced noise on stabilized lasers via feedforward
• Fast photon-mediated entanglement of continuously-cooled trapped ions for quantum networking
• Trapped-Ion Quantum Simulation of Electron Transfer Models with Tunable Dissipation
• Photon scattering errors during stimulated Raman transitions in trapped-ion qubits
• Synthesizing a ${\hat{\sigma }}_z$ spin-dependent force for optical, metastable, and ground state trapped-ion qubits
• Entanglement between a trapped ion qubit and a 780-nm photon via quantum frequency conversion
• Experimental quantum channel discrimination using metastable states of a trapped ion
• Errors in stimulated-Raman-induced logic gates in ${}^{133}$Ba${}^{+}$
• An architecture for two-qubit encoding in neutral ytterbium-171 atoms
• Accelerating Quantum Relaxation via Temporary Reset: A Mpemba-Inspired Approach
• Rapid Exchange Cooling with Trapped Ions
• Unravelling Metastable Markovian Open Quantum Systems
• Eliminating qubit type cross-talk in the $\text{omg}$ protocol
• Realization of a crosstalk-free two-ion node for long-distance quantum networking
• Toward hybrid quantum simulations with qubits and qumodes on trapped-ion platforms
• Simulating open-system molecular dynamics on analog quantum computers
• Snapshotting Quantum Dynamics at Multiple Time Points
• Bespoke Pulse Design for Robust Rapid Two-Qubit Gates with Trapped Ions
• Measurement-Induced Heating of Trapped Ions
• Experimental realization of direct entangling gates between dual-type qubits
• Plane-selective manipulations of nuclear spin qubits in a three-dimensional optical tweezer array
• Sub-Doppler cooling of a trapped ion in a phase-stable polarization gradient
• Polarisation-insensitive state preparation for trapped-ion hyperfine qubits
• State-insensitive wavelengths for light shifts and photon scattering from Zeeman states
• Spontaneous Raman scattering out of a metastable atomic qubit
• Hyperfine spectroscopy of optical-cycling transitions in singly ionized thulium
• Nuclear spin quenching of the ${}^2{S}_{1/2}\to {}^2{F}_{7/2}$ electric octupole transition in ${}^{173}$Yb${}^{+}$
• Long-lived metastable states in the 4f${}^{13}$5d6s configuration of Yb${}^{+}$
• Errors in PDH offset locking due to spurious spectral features
• Non-invasive mid-circuit measurement and reset on atomic qubits
• Multiplexed ion-ion entanglement over $1.2$ kilometer fibers
• Exactly-solved model of light-scattering errors in quantum simulations with metastable trapped-ion qubits
• High-Resolution Spectroscopy of ${}^{173}$Yb${}^{+}$ Ions