Trapped-ion entangling gates with bichromatic pair of microwave fields and magnetic field gradient

Sutherland, Robert Tyler

Title: Trapped-ion entangling gates with bichromatic pair of microwave fields and magnetic field gradient

Patent · Tue Aug 15 00:00:00 EDT 2023

OSTI ID:2222180

Sutherland, Robert Tyler

A trapped-ion quantum logic gate and a method of operating the trapped-ion quantum logic gate are provided. The trapped-ion quantum logic gate includes at least one ion having two internal states and forming a qubit having a qubit transition frequency ω₀0, a magnetic field gradient, and two microwave fields. Each of the two microwave fields has a respective frequency that is detuned from the qubit transition frequency ω₀ by frequency difference δ. The at least one ion has a Rabi frequency Ω_μ due to the two microwave fields and a Rabi frequency Ω_g due to the magnetic field gradient. The method includes applying the magnetic field gradient and the two microwave fields to the at least one ion such that a quantity Ω_g/δ is in a range between zero and 5×10⁻².

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Number(s):: 11,726,387

Application Number:: 16/783,875

OSTI ID:: 2222180

Resource Relation:: Patent File Date: 02/06/2020

Country of Publication:: United States

Language:: English

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