Deterministic one-way logic gates on a cloud quantum computer

Yang, Zhipeng; Baishya, Alakesh; Ku, Huan-Yu; Zhang, Yu-Ran; Kockum, Anton Frisk; Chen, Yueh-Nan; Li, Fuli; Tsai, Jaw-Shen; Nori, Franco

doi:10.1103/physreva.105.042610

Cited by 10 publications

(4 citation statements)

References 79 publications

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“…As listed in Table 6 and Table 7, superconducting is the most preferred by developers as an architecture of a quantum computing system. This is due to its advantages which are, high designability, scalability, easy to couple and easy to control [60,108]. Furthermore, developers seem to prefer the circuitbased over annealing quantum processors.…”

Section: Quantum Computing Processorsmentioning

confidence: 99%

Quantum Computing in The Cloud - A Systematic Literature Review

Asyraf Zhahir,

Munirah Mohd,

Ilias M Shuhud

et al. 2024

Int. j. electr. comput. eng. syst. (Online)

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Quantum computing was proposed to simulate processes that surpass the capabilities of its counterpart, classical computing. Utilizing the principles of quantum mechanics, it improves the computing power of quantum computing. Top developers namely IBM, Rigetti, D-Wave, Qutech and Google have invested greatly in the technology. Nowadays, users can access the quantum computing system publicly over the network in a cloud environment, this system architecture is known as cloud-based quantum computing. However, different developers deliver different architecture and functionality of the system on their platforms. This has indirectly spawned a question of which cloud-based quantum computing platform is a better option based on certain specific requirements by an individual or group. The main objective of this study is to provide a proposed framework using the existing cloud-based service of quantum computing based on previous studies for users with their specific demands.

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Section: Quantum Computing Processorsmentioning

confidence: 99%

Quantum Computing in The Cloud - A Systematic Literature Review

Asyraf Zhahir,

Munirah Mohd,

Ilias M Shuhud

et al. 2024

Int. j. electr. comput. eng. syst. (Online)

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show abstract

“…A measurement-based architecture or a circuit-based architecture which supports dynamic circuit execution would therefore eliminate the exponential scaling with sequence length as well as the need for quantum state tomography and classical postprocessing. Recent work on circumventing dynamic circuit execution on IBM processors for the measurementbased model via a delayed choice strategy [58] is an interesting direction, although such a strategy comes at the expense of adding further entangling gates, which may introduce additional noise. Dynamic circuit execution is thus an important addition to IBM processors for the measurement-based model, and the recent addition thereof opens up many opportunities for quantum computing in the measurement-based model.…”

Section: Gatementioning

confidence: 99%

“…We test our protocol by using the approximate measurement-based 2-design proposed and studied in our previous work [56] to estimate the fidelity of the Hadamard gate and the T gate on remotely accessible IBM superconducting quantum computers [57]. Even though IBM quantum computers are primarily optimised for quantum computing in the circuit model, a variety of measurement-based protocols have been successfully implemented on these systems [20,56,58]. The IBM quantum computers were chosen for our experiments, since systems optimised for quantum computing in the measurement-based model, such as PsiQuantum's photonic systems, are not readily accessible and other cloudbased systems optimised for the circuit model, such as IonQ's trapped ions, had too few qubits to prepare the large entangled resource states required for our protocol at the time of starting the experiments.…”

Section: Introductionmentioning

confidence: 99%

Measurement-based interleaved randomised benchmarking using IBM processors

Strydom

Tame

2023

Phys. Scr.

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Quantum computers have the potential to outperform classical computers in a range of computational tasks, such as prime factorisation and unstructured searching. However, real-world quantum computers are subject to noise. Quantifying noise is of vital importance, since it is often the dominant factor preventing the successful realisation of advanced quantum computations. Here we propose and demonstrate an interleaved randomised benchmarking protocol for measurement-based quantum computers that can be used to estimate the ﬁdelity of any single-qubit measurement-based gate. We tested the protocol on IBM superconducting quantum processors by estimating the ﬁdelity of the Hadamard and T gates — a universal single-qubit gate set. Measurements were performed on entangled cluster states of up to 31 qubits. Our estimated gate ﬁdelities show good agreement with those calculated from quantum process tomography. By artiﬁcially increasing noise, we were able to show that our protocol detects large noise variations in diﬀerent implementations of a gate.

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“…Cluster states [1] constitute a generic class of highly entangled quantum states, which can serve as the starting point for subsequent entirely measurement-driven universal quantum information processing [2][3][4][5][6][7][8][9][10][11][12][13]. In addition, cluster states are useful for quantum sensing [14,15] and robust to specific noise sources [16,17].…”

Section: Introductionmentioning

confidence: 99%

Coherent-cluster-state generation in networks of degenerate optical parametric oscillators

Zhou¹,

Gneiting²,

You³

et al. 2023

Preprint

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Cluster states are versatile quantum resources and an essential building block for measurementbased quantum computing. The possibility to generate cluster states in specific systems may thus serve as an indicator if and to what extent these systems can be harnessed for quantum technologies and quantum information processing in particular. Here, we apply this analysis to networks of degenerate optical parametric oscillators (DOPOs), also called coherent Ising machines (CIMs). CIMs are distinguished by their highly flexible coupling capabilities, which makes it possible to use them, e.g., to emulate large spin systems. As CIMs typically operate with coherent states (and superpositions thereof), it is natural to consider cluster states formed by superpositions of coherent states, i.e., coherent cluster states. As we show, such coherent cluster states can, under ideal conditions, be generated in DOPO networks with the help of beam splitters and classical pumps. Our subsequent numerical analysis provides the minimum requirements for the generation of coherent cluster states under realistic conditions. Moreover, we discuss how nonequilibrium pumps can improve the generation of coherent cluster states. In order to assess the quality of the cluster state generation, we map the generated states to an effective spin space using modular variables, which allows us to apply entanglement criteria tailored for spin-based cluster states.

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Deterministic one-way logic gates on a cloud quantum computer

Cited by 10 publications

References 79 publications

Quantum Computing in The Cloud - A Systematic Literature Review

Quantum Computing in The Cloud - A Systematic Literature Review

Measurement-based interleaved randomised benchmarking using IBM processors

Coherent-cluster-state generation in networks of degenerate optical parametric oscillators

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