An error-resilient gate search scheme using multi-objective optimization and pulse symmetries enables microsecond two-qubit gates with fidelities approaching 99.9% in linear ion traps of up to 50 ions.
Entanglement and quantum computation with ions in thermal motion
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abstract
With bichromatic fields it is possible to deterministically produce entangled states of trapped ions. In this paper we present a unified analysis of this process for both weak and strong fields, for slow and fast gates. Simple expressions for the fidelity of creating maximally entangled states of two or an arbitrary number of ions under non-ideal conditions are derived and discussed.
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Error-Resilient Fast Entangling Gates for Scalable Ion-Trap Quantum Processors
An error-resilient gate search scheme using multi-objective optimization and pulse symmetries enables microsecond two-qubit gates with fidelities approaching 99.9% in linear ion traps of up to 50 ions.