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Journal articles on the topic 'Delegated quantum computing'

Author: Grafiati
Published: 25 May 2024
Last updated: 31 July 2025

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1

Morimae, Tomoyuki, and Takeshi Koshiba. "Impossibility of perfectly-secure one-round delegated quantum computing for classical client." Quantum Information and Computation 19, no. 3&4 (2019): 214–21. http://dx.doi.org/10.26421/qic19.3-4-2.

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Blind quantum computing protocols enable a client, who can generate or measure single-qubit states, to delegate quantum computing to a remote quantum server protecting the client's privacy (i.e., input, output, and program). With current technologies, generations or measurements of single-qubit states are not too much burden for the client. In other words, secure delegated quantum computing is possible for ``almost classical" clients. However, is it possible for a ``completely classical" client? Here we consider a one-round perfectly-secure delegated quantum computing, and show that the protoc
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2

Kashefi, Elham, and Anna Pappa. "Multiparty Delegated Quantum Computing." Cryptography 1, no. 2 (2017): 12. http://dx.doi.org/10.3390/cryptography1020012.

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3

Liu, Zhixin, Qiaoling Xie, Yongfu Zha, and Yumin Dong. "Quantum delegated computing ciphertext retrieval scheme." Journal of Applied Physics 131, no. 4 (2022): 044401. http://dx.doi.org/10.1063/5.0080097.

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4

Morimae, Tomoyuki, and Harumichi Harumichi Nishimura. "Rational proofs for quantum computing." Quantum Information and Computation 20, no. 3&4 (2020): 181–93. http://dx.doi.org/10.26421/qic20.3-4-1.

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It is an open problem whether a classical client can delegate quantum computing to an efficient remote quantum server in such a way that the correctness of quantum computing is somehow guaranteed. Several protocols for verifiable delegated quantum computing have been proposed, but the client is not completely free from any quantum technology: the client has to generate or measure single-qubit states. In this paper, we show that the client can be completely classical if the server is rational (i.e., economically motivated), following the ``rational proofs" framework of Azar and Micali. More pre
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5

Kim, Hyunjun, Wonwoong Kim, Yeajun Kang, Hyunji Kim, and Hwajeong Seo. "Post-Quantum Delegated Proof of Luck for Blockchain Consensus Algorithm." Applied Sciences 14, no. 18 (2024): 8394. http://dx.doi.org/10.3390/app14188394.

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The advancements in quantum computing and the potential for polynomial-time solutions to traditional public key cryptography (i.e., Rivest–Shamir–Adleman (RSA) and elliptic-curve cryptography (ECC)) using Shor’s algorithm pose a serious threat to the security of pre-quantum blockchain technologies. This paper proposes an efficient quantum-safe blockchain that incorporates new quantum-safe consensus algorithms. We integrate post-quantum signature schemes into the blockchain’s transaction signing and verification processes to enhance resistance against quantum attacks. Specifically, we employ th
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6

Sun, Wenli, Yan Chang, Danchen Wang, Shibin Zhang, and Lili Yan. "Delegated quantum neural networks for encrypted data." Physica Scripta 99, no. 5 (2024): 055102. http://dx.doi.org/10.1088/1402-4896/ad348f.

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Abstract Quantum machine learning is expected to utilize the potential advantages of quantum computing to advance the efficiency of machine learning. However, with the help of quantum cloud servers, ordinary users may confront the threat of privacy leakage of input data and models when performing the training or inference of quantum neural networks (QNNs). To address this problem, we present a new framework that allows the training and inference of delegated QNNs to be performed on encrypted data to protect the privacy of users’ data and models. This framework contains two models that are alte
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7

Doosti, Mina, Niraj Kumar, Mahshid Delavar, and Elham Kashefi. "Client-server Identification Protocols with Quantum PUF." ACM Transactions on Quantum Computing 2, no. 3 (2021): 1–40. http://dx.doi.org/10.1145/3484197.

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Recently, major progress has been made towards the realisation of quantum internet to enable a broad range of classically intractable applications. These applications such as delegated quantum computation require running a secure identification protocol between a low-resource and a high-resource party to provide secure communication. In this work, we propose two identification protocols based on the emerging hardware-secure solutions, the quantum Physical Unclonable Functions (qPUFs). The first protocol allows a low-resource party to prove its identity to a high-resource party and in the secon
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8

Morimae, Tomoyuki, Harumichi Nishimura, Yuki Takeuch, and Seiichiro Tani. "Impossibility of blind quantum sampling for classical client." quantum Information and Computation 19, no. 9&10 (2019): 793–806. http://dx.doi.org/10.26421/qic19.9-10-3.

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Blind quantum computing enables a client, who can only generate or measure single-qubit states, to delegate quantum computing to a remote quantum server in such a way that the input, output, and program are hidden from the server. It is an open problem whether a completely classical client can delegate quantum computing blindly (in the information theoretic sense). In this paper, we show that if a completely classical client can blindly delegate sampling of subuniversal models, such as the DQC1 model and the IQP model, then the polynomial-time hierarchy collapses to the third level. Our delega
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9

Morimae, Tomoyuki. "Secure Cloud Quantum Computing with Verification Based on Quantum Interactive Proof." Impact 2019, no. 10 (2019): 30–32. http://dx.doi.org/10.21820/23987073.2019.10.30.

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In cloud quantum computing, a classical client delegate quantum computing to a remote quantum server. An important property of cloud quantum computing is the verifiability: the client can check the integrity of the server. Whether such a classical verification of quantum computing is possible or not is one of the most important open problems in quantum computing. We tackle this problem from the view point of quantum interactive proof systems. Dr Tomoyuki Morimae is part of the Quantum Information Group at the Yukawa Institute for Theoretical Physics at Kyoto University, Japan. He leads a team
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10

Efthymiou, Stavros, Alvaro Orgaz-Fuertes, Rodolfo Carobene, et al. "Qibolab: an open-source hybrid quantum operating system." Quantum 8 (February 12, 2024): 1247. http://dx.doi.org/10.22331/q-2024-02-12-1247.

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We present Qibolab, an open-source software library for quantum hardware control integrated with the Qibo quantum computing middleware framework. Qibolab provides the software layer required to automatically execute circuit-based algorithms on custom self-hosted quantum hardware platforms. We introduce a set of objects designed to provide programmatic access to quantum control through pulses-oriented drivers for instruments, transpilers and optimization algorithms. Qibolab enables experimentalists and developers to delegate all complex aspects of hardware implementation to the library so they
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11

Morimae, Tomoyuki, Vedran Dunjko, and Elham Kashefi. "Ground state blind quantum computation on AKLT state." Quantum Information and Computation 15, no. 3&4 (2015): 200–234. http://dx.doi.org/10.26421/qic15.3-4-2.

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The blind quantum computing protocols (BQC) enable a classical client with limited quantum technology to delegate a computation to the quantum server(s) in such a way that the privacy of the computation is preserved. Here we present a new scheme for BQC that uses the concept of the measurement based quantum computing with the novel resource state of Affleck-Kennedy-Lieb-Tasaki (AKLT) chains leading to more robust computation. AKLT states are physically motivated resource as they are gapped ground states of a physically natural Hamiltonian in condensed matter physics. Our BQC protocol can enjoy
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12

Luo, Jiaoyan, Liming Zuo, and Hao Liu. "Quantum-Resistant Lattice-Based Proxy Signature." Symmetry 17, no. 2 (2025): 261. https://doi.org/10.3390/sym17020261.

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With the advancement of quantum computing, the utilization of quantum algorithms such as Shor’s algorithm enables the efficient resolution of problems that are intractable in classical computing paradigms, posing a significant threat to traditional signature schemes. Lattice-based cryptography is considered one of the most promising post-quantum cryptographic algorithms due to its computational advantages and potential resistance to quantum attacks. Proxy signature is an authorization mechanism that allows the original signer to delegate the signing power to a proxy. The security of existing p
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13

Efthymiou, Stavros, Sergi Ramos-Calderer, Carlos Bravo-Prieto, et al. "Qibo: a framework for quantum simulation with hardware acceleration." Quantum Science and Technology 7, no. 1 (2021): 015018. http://dx.doi.org/10.1088/2058-9565/ac39f5.

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Abstract We present Qibo, a new open-source software for fast evaluation of quantum circuits and adiabatic evolution which takes full advantage of hardware accelerators. The growing interest in quantum computing and the recent developments of quantum hardware devices motivates the development of new advanced computational tools focused on performance and usage simplicity. In this work we introduce a new quantum simulation framework that enables developers to delegate all complicated aspects of hardware or platform implementation to the library so they can focus on the problem and quantum algor
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14

Zhang, Jinglei, Ryan Ferguson, Stefan Kühn, et al. "Simulating gauge theories with variational quantum eigensolvers in superconducting microwave cavities." Quantum 7 (October 23, 2023): 1148. http://dx.doi.org/10.22331/q-2023-10-23-1148.

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Quantum-enhanced computing methods are promising candidates to solve currently intractable problems. We consider here a variational quantum eigensolver (VQE), that delegates costly state preparations and measurements to quantum hardware, while classical optimization techniques guide the quantum hardware to create a desired target state. In this work, we propose a bosonic VQE using superconducting microwave cavities, overcoming the typical restriction of a small Hilbert space when the VQE is qubit based. The considered platform allows for strong nonlinearities between photon modes, which are hi
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15

Ma, Yao, Elham Kashefi, Myrto Arapinis, Kaushik Chakraborty, and Marc Kaplan. "QEnclave - A practical solution for secure quantum cloud computing." npj Quantum Information 8, no. 1 (2022). http://dx.doi.org/10.1038/s41534-022-00612-5.

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AbstractWe introduce a secure hardware device named a QEnclave that can secure the remote execution of quantum operations while only using classical controls. This device extends to quantum computing from the classical concept of a secure enclave that isolates a computation from its environment to provide privacy and tamper-resistance. Remarkably, our QEnclave only performs single qubit rotations but can nevertheless be used to secure an arbitrary quantum computation even if the qubit source is controlled by an adversary. More precisely, by attaching a QEnclave to a quantum computer, a remote
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16

Dunjko, Vedran, Theodoros Kapourniotis, and Elham Kashefi. "Quantum-enhanced secure delegated classical computing." Quantum Information and Computation, January 2016, 61–86. http://dx.doi.org/10.26421/qic16.1-2-5.

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We present a family of quantumly-enhanced protocols to achieve unconditionally secure delegated classical computation where the client and the server have both their classical and quantum computing capacity limited. We prove the same task cannot be achieved using only classical protocols. This extends the work of Anders and Browne on the computational power of correlations to a security setting. In doing so we are able to highlight the power of online quantum communication as we prove the same task could not be achieved using pre-shared (offline) quantum correlations.
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17

Zeuner, Jonas, Ioannis Pitsios, Si-Hui Tan, et al. "Experimental quantum homomorphic encryption." npj Quantum Information 7, no. 1 (2021). http://dx.doi.org/10.1038/s41534-020-00340-8.

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AbstractQuantum computers promise not only to outperform classical machines for certain important tasks, but also to preserve privacy of computation. For example, the blind quantum computing protocol enables secure delegated quantum computation, where a client can protect the privacy of their data and algorithms from a quantum server assigned to run the computation. However, this security comes with the practical limitation that the client and server must communicate after each step of computation. A practical alternative is homomorphic encryption, which does not require any interactions, whil
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18

Ma, Shuquan, Changhua Zhu, Min Nie, Dongxiao Quan, and Changxing Pei. "Secure delegated quantum computation based on Z-rotation encryption." Europhysics Letters, January 28, 2022. http://dx.doi.org/10.1209/0295-5075/ac4fd2.

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Abstract Quantum computing on encrypted data allows a client who has limited quantum capacity to delegate his or her private computation to an untrusted quantum server, meanwhile the input and output are encrypted by the quantum one-time pad and only the client can correctly decrypt them. Generally, the client is required to have ability to prepare some single qubits and perform some basic gates. In this work, we consider a further restricted situation where the client can only prepare one single qubit and perform one basic gate. Specifically, we show that as long as the client can prepare a f
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19

Li, Weikang, and Dong-Ling Deng. "Quantum delegated and federated learning via quantum homomorphic encryption." Research Directions: Quantum Technologies, February 4, 2025, 1–6. https://doi.org/10.1017/qut.2025.2.

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Quantum learning models hold the potential to bring computational advantages over the classical realm. As powerful quantum servers become available on the cloud, ensuring the protection of clients’ private data becomes crucial. By incorporating quantum homomorphic encryption schemes, we present a general framework that enables quantum delegated and federated learning with a computation-theoretical data privacy guarantee. We show that learning and inference under this framework feature substantially lower communication complexity compared with schemes based on blind quantum computing. In additi
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20

Kapourniotis, Theodoros, Elham Kashefi, Dominik Leichtle, Luka Music, and Harold Ollivier. "Unifying Quantum Verification and Error-Detection: Theory and Tools for Optimisations." Quantum Science and Technology, May 2, 2024. http://dx.doi.org/10.1088/2058-9565/ad466d.

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Abstract With the advent of cloud-based quantum computing, it has become vital to provide strong guarantees that computations delegated by clients to quantum service providers have been executed faithfully. Secure - blind and verifiable - Delegated Quantum Computing (SDQC) has emerged as one of the key approaches to address this challenge, yet current protocols lack at least one of the following three ingredients: composability, noise-robustness and modularity.

To tackle this question, our paper lays out the fundamental structure of SDQC protocols, namely mixing two components
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21

Fernández, Pablo, and Miguel Angel Martin-Delgado. "Homomorphic Encryption of the k=2 Bernstein-Vazirani Algorithm." Journal of Physics A: Mathematical and Theoretical, August 6, 2024. http://dx.doi.org/10.1088/1751-8121/ad6c04.

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Abstract We introduce a class of circuits that solve a particular case of the Bernstein-Vazirani recursive problem for second-level recursion. This class of circuits allows for the implementation of the oracle using a number of T-gates that grows linearly with the number of qubits in the problem. We find an application of this scheme to quantum homomorphic encryption (QHE), which is an important cryptographic technology useful for delegated quantum computing, allowing a remote server to perform quantum computations on encrypted quantum data, so that the server cannot know anything about the cli
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22

Richer, Michelle, Gabriela Sánchez-Díaz, Marco Martínez-González, et al. "PyCI: A Python-scriptable library for arbitrary determinant CI." Journal of Chemical Physics 161, no. 13 (2024). http://dx.doi.org/10.1063/5.0219010.

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PyCI is a free and open-source Python library for setting up and running arbitrary determinant-driven configuration interaction (CI) computations, as well as their generalizations to cases where the coefficients of the determinant are nonlinear functions of optimizable parameters. PyCI also includes functionality for computing the residual correlation energy, along with the ability to compute spin-polarized one- and two-electron (transition) reduced density matrices. PyCI was originally intended to replace the ab initio quantum chemistry functionality in the HORTON library but emerged as a sta
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23

Polacchi, Beatrice, Dominik Leichtle, Leonardo Limongi, et al. "Multi-client distributed blind quantum computation with the Qline architecture." Nature Communications 14, no. 1 (2023). http://dx.doi.org/10.1038/s41467-023-43617-0.

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AbstractUniversal blind quantum computing allows users with minimal quantum resources to delegate a quantum computation to a remote quantum server, while keeping intrinsically hidden input, algorithm, and outcome. State-of-art experimental demonstrations of such a protocol have only involved one client. However, an increasing number of multi-party algorithms, e.g. federated machine learning, require the collaboration of multiple clients to carry out a given joint computation. In this work, we propose and experimentally demonstrate a lightweight multi-client blind quantum computation protocol b
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24

Długopolski, Jacek, Jakub Czerski, and Mateusz Knapik. "SoC-FPGA Based Concept of Hardware Aided Quantum Simulation." Journal of Automation, Mobile Robotics and Intelligent Systems, June 4, 2024, 17–23. http://dx.doi.org/10.14313/jamris/2-2024/9.

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Contemporary industry and science expectations towards technological solutions set the bar high. Current approaches to increasing the computing power of standard systems are reaching the limits of physics known to humankind. Fast, programmable systems with relatively low power consumption are a different concept for performing complex calculations. Highly parallel processing opens up a number of possibilities in the context of accelerating calculations. Application of SoC (System On Chip) with FPGA (Field-Programmable Gate Array) enables to delegate of a part of computations to the gates matri
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25

"28th International Nuclear Physics Conference (INPC2022)." Journal of Physics: Conference Series 2586, no. 1 (2023): 011001. http://dx.doi.org/10.1088/1742-6596/2586/1/011001.

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The 28th International Nuclear Physics Conference (INPC2022) was successfully held in Cape Town, South Africa from 11 to 16 September 2022, marking the first time the conference was held on the African continent. This event, overseen by the International Union of Pure and Applied Physics (IUPAP), coincided with three major scientific events: The International Year of Basic Sciences for Sustainable Development (IYBSSD), the centenaries of the Nobel Prize awarded to Niels Bohr and the establishment of IUPAP. The conference program spanned a wide range of topics across the breadth of Nuclear Phys
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26

"Preface." Journal of Physics: Conference Series 2405, no. 1 (2022): 011001. http://dx.doi.org/10.1088/1742-6596/2405/1/011001.

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The 2022 International Conference on Electronics Technology and Artificial Intelligence (ETAI 2022) was successfully held on September 23rd-25th, 2022 in Chongqing, China (online conference). ETAI 2022 promoted scientific innovation, expanded channels of international academic exchange in science and technology, boosted the development of the Greater Bay Area, and strengthened academic cooperation between China and the outside world. In the conference, we were greatly honored to have Prof. Zhikui Chen from Dalian University of Technology, China to serve as our Conference General Chair. The con
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