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Physical Platform: Trapped Ion Qubits
QUBITS: Atomic clock levels; perfect qubit replication
INITIALIZATION: optical pumping (qubits) and laser cooling (motion)
MEASUREMENT: state-dependent fluorescence imaging
MONOLITHIC: Silicon ion-trap chips to store and shuttle 100s of qubits
GATES: mediated through collective motion and control laser fields
State of the Art in 2018
QUBIT COHERENCE: T1 & T2 times >1000 sec
INITIALIZATION: fidelity >0.999
MEASUREMENT: fidelity >0.999
GATES: 0.99999 (1-qubit), 0.999 (2-qubit)
CONTROL (limited control): 50-200 qubits
CONTROL (full control): 7 qubits on a 32-qubit template, at 0.99 fidelity
STAQ Goals
Fully-connected and controllable quantum system with >32 qubits with two-qubit fidelity >0.999