The Experts below are selected from a list of 20700 Experts worldwide ranked by ideXlab platform
Vladimir Manucharyan - One of the best experts on this subject based on the ideXlab platform.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
Physical Review X, 2021Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:A high-fidelity quantum Logic gate implemented with fluxonium-based qubits offers a new route to scalable and robust quantum processors.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
arXiv: Quantum Physics, 2020Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies $72.3~\textrm{MHz}$ and $136.3~\textrm{MHz}$. The gate is activated by a $61.6~\textrm{ns}$ long pulse at the frequency between non-computational transitions $|10\rangle - |20\rangle$ and $|11\rangle - |21\rangle$, during which the qubits complete only $4$ and $8$ Larmor periods, respectively. The measured gate error of $(8\pm1)\times 10^{-3}$ is limited by decoherence in the non-computational subspace, which will likely improve in the next generation devices. Although our qubits are about fifty times slower than transmons, the two-qubit gate is Faster than microwave-activated gates on transmons, and the gate error is on par with the lowest reported. Architectural advantages of low-frequency fluxoniums include long qubit coherence time, weak hybridization in the computational subspace, suppressed residual $ZZ$-coupling rate (here $46~\mathrm{kHz}$), and absence of either excessive parameter matching or complex pulse shaping requirements.
Quentin Ficheux - One of the best experts on this subject based on the ideXlab platform.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
Physical Review X, 2021Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:A high-fidelity quantum Logic gate implemented with fluxonium-based qubits offers a new route to scalable and robust quantum processors.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
arXiv: Quantum Physics, 2020Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies $72.3~\textrm{MHz}$ and $136.3~\textrm{MHz}$. The gate is activated by a $61.6~\textrm{ns}$ long pulse at the frequency between non-computational transitions $|10\rangle - |20\rangle$ and $|11\rangle - |21\rangle$, during which the qubits complete only $4$ and $8$ Larmor periods, respectively. The measured gate error of $(8\pm1)\times 10^{-3}$ is limited by decoherence in the non-computational subspace, which will likely improve in the next generation devices. Although our qubits are about fifty times slower than transmons, the two-qubit gate is Faster than microwave-activated gates on transmons, and the gate error is on par with the lowest reported. Architectural advantages of low-frequency fluxoniums include long qubit coherence time, weak hybridization in the computational subspace, suppressed residual $ZZ$-coupling rate (here $46~\mathrm{kHz}$), and absence of either excessive parameter matching or complex pulse shaping requirements.
Maxim G Vavilov - One of the best experts on this subject based on the ideXlab platform.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
Physical Review X, 2021Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:A high-fidelity quantum Logic gate implemented with fluxonium-based qubits offers a new route to scalable and robust quantum processors.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
arXiv: Quantum Physics, 2020Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies $72.3~\textrm{MHz}$ and $136.3~\textrm{MHz}$. The gate is activated by a $61.6~\textrm{ns}$ long pulse at the frequency between non-computational transitions $|10\rangle - |20\rangle$ and $|11\rangle - |21\rangle$, during which the qubits complete only $4$ and $8$ Larmor periods, respectively. The measured gate error of $(8\pm1)\times 10^{-3}$ is limited by decoherence in the non-computational subspace, which will likely improve in the next generation devices. Although our qubits are about fifty times slower than transmons, the two-qubit gate is Faster than microwave-activated gates on transmons, and the gate error is on par with the lowest reported. Architectural advantages of low-frequency fluxoniums include long qubit coherence time, weak hybridization in the computational subspace, suppressed residual $ZZ$-coupling rate (here $46~\mathrm{kHz}$), and absence of either excessive parameter matching or complex pulse shaping requirements.
Konstantin Nesterov - One of the best experts on this subject based on the ideXlab platform.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
Physical Review X, 2021Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:A high-fidelity quantum Logic gate implemented with fluxonium-based qubits offers a new route to scalable and robust quantum processors.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
arXiv: Quantum Physics, 2020Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies $72.3~\textrm{MHz}$ and $136.3~\textrm{MHz}$. The gate is activated by a $61.6~\textrm{ns}$ long pulse at the frequency between non-computational transitions $|10\rangle - |20\rangle$ and $|11\rangle - |21\rangle$, during which the qubits complete only $4$ and $8$ Larmor periods, respectively. The measured gate error of $(8\pm1)\times 10^{-3}$ is limited by decoherence in the non-computational subspace, which will likely improve in the next generation devices. Although our qubits are about fifty times slower than transmons, the two-qubit gate is Faster than microwave-activated gates on transmons, and the gate error is on par with the lowest reported. Architectural advantages of low-frequency fluxoniums include long qubit coherence time, weak hybridization in the computational subspace, suppressed residual $ZZ$-coupling rate (here $46~\mathrm{kHz}$), and absence of either excessive parameter matching or complex pulse shaping requirements.
Haonan Xiong - One of the best experts on this subject based on the ideXlab platform.
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Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
Physical Review X, 2021Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:A high-fidelity quantum Logic gate implemented with fluxonium-based qubits offers a new route to scalable and robust quantum processors.
-
Fast Logic with slow qubits microwave activated controlled z gate on low frequency fluxoniums
arXiv: Quantum Physics, 2020Co-Authors: Quentin Ficheux, Long Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin Nesterov, Maxim G Vavilov, Vladimir ManucharyanAbstract:We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies $72.3~\textrm{MHz}$ and $136.3~\textrm{MHz}$. The gate is activated by a $61.6~\textrm{ns}$ long pulse at the frequency between non-computational transitions $|10\rangle - |20\rangle$ and $|11\rangle - |21\rangle$, during which the qubits complete only $4$ and $8$ Larmor periods, respectively. The measured gate error of $(8\pm1)\times 10^{-3}$ is limited by decoherence in the non-computational subspace, which will likely improve in the next generation devices. Although our qubits are about fifty times slower than transmons, the two-qubit gate is Faster than microwave-activated gates on transmons, and the gate error is on par with the lowest reported. Architectural advantages of low-frequency fluxoniums include long qubit coherence time, weak hybridization in the computational subspace, suppressed residual $ZZ$-coupling rate (here $46~\mathrm{kHz}$), and absence of either excessive parameter matching or complex pulse shaping requirements.