Related papers: High-fidelity $\sqrt{i\text{SWAP}}$ gates using a fixed coupler driven by two microwave pulses

High-fidelity $\sqrt{i\text{SWAP}}$ gates using a fixed coupler driven by two microwave pulses

URL: http://arxiv.org/abs/2404.17824v1
Date: Sat, 27 Apr 2024 08:08:20 GMT
Title: High-fidelity $\sqrt{i\text{SWAP}}$ gates using a fixed coupler driven by two microwave pulses
Authors: Peng Xu, Haitao Zhang, Shengjun Wu,
Abstract summary: We propose a microwave-control protocol for the implementation of a two-qubit gate employing two transmon qubits coupled via a fixed-frequency transmon coupler. We show that high-fidelity $sqrtitextSWAP$ gates can be achieved.
Score: 12.986786945391236
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Attaining high-fidelity two-qubit gates represents a pivotal quantum operation for the realization of large-scale quantum computation and simulation. In this study, we propose a microwave-control protocol for the implementation of a two-qubit gate employing two transmon qubits coupled via a fixed-frequency transmon coupler. This protocol entails applying two microwave pulses exclusively to the coupler, thereby inducing interaction between the fixed-frequency transmon qubits. This interaction facilitates the realization of $\sqrt{i\text{SWAP}}$ gates. Additionally, we explore the implementation of the gate scheme in two distinct qubit architectures. Demonstrating with experimentally accessible parameters, we show that high-fidelity $\sqrt{i\text{SWAP}}$ gates can be achieved

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