Systems and methods for parallel execution of multi-qubit quantum gates

By employing global laser pulses to couple qubits into interacting states and block them from each other, the method addresses the challenge of multi-qubit gate implementation, achieving high-fidelity entangled operations and scalable quantum computing.

JP7842190B2Active Publication Date: 2026-04-07PRESIDENT & FELLOWS OF HARVARD COLLEGE +1
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-04-07

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    Figure 0007842190000129
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Abstract

To provide a system and method for parallel implementation of multi-qubit quantum gates.SOLUTION: A method of operating a quantum gate on a grouping of qubits comprises: selecting values for a set of parameters of at least first and second laser pulses, the parameters are a relative phase shift between the at least first and second laser pulses, a laser frequency, a laser intensity and a pulse duration; and applying each of the at least first and second laser pulses to all qubits in the gate. The gate consists of a grouping of N qubits, where N is equal to two or more, thereby coupling a non-interacting quantum state |1> to an interacting excited state |r>. Each qubit that begins in the quantum state |1> returns to the state |1> upon completion of the at least first and second laser pulses, and all qubits in the grouping are mutually blockaded.SELECTED DRAWING: None
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Citation Information

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