$\text{omg}$ 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 (3)

• Trapped-ion quantum logic gates based on oscillating magnetic fields
• Errors in trapped-ion quantum gates due to spontaneous photon scattering
• Hyperfine structure of ${}^{173}{\mathrm{Yb}}^{+}$: toward resolving the ${}^{173}\mathrm{Yb}$ nuclear octupole moment puzzle

Cited by in corpus (42)

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• Quantum Simulation of Spin-Boson Models with Structured Bath
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• Trapped-Ion Quantum Simulation of Electron Transfer Models with Tunable Dissipation
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• 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
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• Errors in stimulated-Raman-induced logic gates in ${}^{133}$Ba${}^{+}$
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• 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
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• 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${}^{+}$
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• 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