Quantum Information Processing最新文献_第3页

Wigner state and process tomography on near-term quantum devices 近期量子器件的维格纳态和过程层析成像技术

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-22 DOI: 10.1007/s11128-024-04550-3

Amit Devra, Niklas J. Glaser, Dennis Huber, Steffen J. Glaser

{"title":"Wigner state and process tomography on near-term quantum devices","authors":"Amit Devra, Niklas J. Glaser, Dennis Huber, Steffen J. Glaser","doi":"10.1007/s11128-024-04550-3","DOIUrl":"10.1007/s11128-024-04550-3","url":null,"abstract":"<div><p>We present an experimental scanning-based tomography approach for near-term quantum devices. The underlying method has previously been introduced in an ensemble-based NMR setting. Here we provide a tutorial-style explanation along with suitable software tools to guide experimentalists in its adaptation to near-term pure-state quantum devices. The approach is based on a Wigner-type representation of quantum states and operators. These representations provide a rich visualization of quantum operators using shapes assembled from a linear combination of spherical harmonics. These shapes (called droplets in the following) can be experimentally tomographed by measuring the expectation values of rotated axial tensor operators. We present an experimental framework for implementing the scanning-based tomography technique for circuit-based quantum computers and showcase results from IBM quantum experience. We also present a method for estimating the density and process matrices from experimentally tomographed Wigner functions (droplets). This tomography approach can be directly implemented using the Python-based software package <span>DROPStomo</span>.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"23 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-024-04550-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A threshold changeable dynamic quantum secret sharing scheme with cheating identification 具有作弊识别功能的阈值可变动态量子秘密共享方案

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-21 DOI: 10.1007/s11128-024-04572-x

Fulin Li, Qingao Wu, Changlu Lin, Shixin Zhu

{"title":"A threshold changeable dynamic quantum secret sharing scheme with cheating identification","authors":"Fulin Li, Qingao Wu, Changlu Lin, Shixin Zhu","doi":"10.1007/s11128-024-04572-x","DOIUrl":"10.1007/s11128-024-04572-x","url":null,"abstract":"<div><p>Quantum secret sharing holds an important place in quantum cryptography. In this paper, a threshold changeable dynamic quantum secret sharing scheme with cheating identification is firstly proposed based on the Chinese Remainder Theorem. On the premise of not altering the shared secret and the private shares of the original participants, our scheme realizes the dynamic updating of participants and for the first time achieves the changeable threshold in the quantum environment, which greatly improves the flexibility and practicality of the scheme. In addition, we generalize the entanglement swapping equations of Bell states in 2-dimension to <i>d</i>-dimension. During the reconstruction phase, our scheme can timely detect and identify the cheating behaviors based on the randomized components and the entanglement swapping equations of <i>d</i>-dimensional Bell states. Meanwhile, the randomized components ensure privacy protection for shares and avoid the interference of invalid shares when recovering the secret. Security analysis shows that our scheme is resistant to not only a series of typical external attacks but also forgery, collusion, and dishonest revoked participant attacks. Compared with the existing schemes, our scheme is not only more secure and efficient but also has lower computational consumption.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"23 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comment on “quantum identity authentication with single photon” 就 "利用单光子进行量子身份验证 "发表评论

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-19 DOI: 10.1007/s11128-024-04564-x

Davide Li Calsi, Paul Kohl

引用次数: 0

Simple exact quantum search 简单精确的量子搜索

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-18 DOI: 10.1007/s11128-024-04548-x

Raj Alexandru Guţoiu, Andrei Tănăsescu, Pantelimon George Popescu

引用次数: 0

QUBO formulation for aircraft load optimization 飞机载荷优化的 QUBO 方案

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-18 DOI: 10.1007/s11128-024-04569-6

Laura Gatti, Rafael Sotelo, Juan Orihuela, Diego Gibert, Renzo D’ambrosio, Federico Fuidio

引用次数: 0

Error correction using squeezed Fock states 利用挤压福克态进行纠错

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-18 DOI: 10.1007/s11128-024-04549-w

S. B. Korolev, E. N. Bashmakova, T. Yu. Golubeva

引用次数: 0

Bidirectional quantum controlled teleportation in multi-hop networks: a generalized protocol for the arbitrary n-qubit state through the noisy channel 多跳网络中的双向量子受控远传：通过噪声信道的任意 n 量子比特态通用协议

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-17 DOI: 10.1007/s11128-024-04561-0

Yousef Mafi, Ali Kookani, Hossein Aghababa, Masoud Barati, Mohammadreza Kolahdouz

{"title":"Bidirectional quantum controlled teleportation in multi-hop networks: a generalized protocol for the arbitrary n-qubit state through the noisy channel","authors":"Yousef Mafi, Ali Kookani, Hossein Aghababa, Masoud Barati, Mohammadreza Kolahdouz","doi":"10.1007/s11128-024-04561-0","DOIUrl":"10.1007/s11128-024-04561-0","url":null,"abstract":"<div><p>This paper introduces a bidirectional quantum controlled teleportation (BQCT) protocol within a multi-hop communication network, designed to teleport an arbitrary <span>(n)</span>-qubit state through an <span>(m)</span>-hop network framework. Utilizing the IBM Quantum (IBMQ) Experience simulation framework and the Qiskit library, we empirically substantiate the protocol's efficacy. Our findings indicate consistent teleportation across varying hop counts, though the precision of the output state diminishes with an increase in hops. This research further delves into the impact of quantum noise—namely amplitude-damping, phase-damping, bit-flip, and phase-flip—on the protocol's performance. A significant finding is that the detrimental effects of quantum noise escalate with the number of hops, with noise influence showing independence from the input state and causing an exponential decrease in output state fidelity. Thus, our analysis suggests a potential for optimizing real quantum communication systems through a balance between error reduction strategies and the maximum tolerable noise level.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"23 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142443305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymmetric bidirectional quantum 2(Leftrightarrow )3 qubit teleportation via seven-qubit entangled state 通过七量子纠缠态实现不对称双向量子 2 （左/右箭头）3 量子位远距离传输

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-17 DOI: 10.1007/s11128-024-04571-y

Hao Yuan, Guo-Zhu Pan, Gang Zhang

引用次数: 0

Enabling CV-MDI-QKD for weakly squeezed states using non-Gaussian operations 利用非高斯运算为弱挤压态启用 CV-MDI-QKD

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-17 DOI: 10.1007/s11128-024-04565-w

Farsad Ahmad, Jian Li, Aeysha Khalique

引用次数: 0

Quantum private query protocol based on counterfactual quantum key distribution with noiseless attack 基于无噪声攻击的反事实量子密钥分发的量子私人查询协议

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-10-17 DOI: 10.1007/s11128-024-04539-y

Dongmei Liu, Jian Li, Xiubo Chen, Chongqiang Ye, Zhuo Wang

{"title":"Quantum private query protocol based on counterfactual quantum key distribution with noiseless attack","authors":"Dongmei Liu, Jian Li, Xiubo Chen, Chongqiang Ye, Zhuo Wang","doi":"10.1007/s11128-024-04539-y","DOIUrl":"10.1007/s11128-024-04539-y","url":null,"abstract":"<div><p>Most of the previous quantum private query protocols are based on the BB84 key distribution type and generally use a method that wastes most quantum resources to complete security detection. In order to save resources, this paper proposes a noiseless counterfactual quantum private query protocol with high efficiency. This protocol improves the counterfactual quantum key distribution protocol proposed by Rao and Srikanth (Phys Rev A 104:022424, 2021. https://doi.org/10.1103/PhysRevA.104.022424). The communicating parties randomly select quantum bits with probability <i>f</i> to perform flipping to complete the quantum private query. The detector at the sending end receives the counterfactual bit, which we use for security detection; the detector at the receiving end is called a non-counterfactual bit, which is combined with random bit flipping to realize key transmission, followed by traditional post-processing and private query. Finally, when <span>(f=0.5)</span>, the response probability (keys rate) of the non-counterfactual detector at the receiving end can reach a minimum value of 0.5.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"23 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0