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Research on the application of loop quantum theory model in black hole quantum information 环量子理论模型在黑洞量子信息中的应用研究
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-03-03 DOI: 10.1007/s11128-025-04660-6
Yangting Liu
{"title":"Research on the application of loop quantum theory model in black hole quantum information","authors":"Yangting Liu","doi":"10.1007/s11128-025-04660-6","DOIUrl":"10.1007/s11128-025-04660-6","url":null,"abstract":"<div><p>An important reason why it is currently difficult to unify relativity theory and quantum theory is the quantum information paradox. The information engulfment pointed out by general relativity violates the principles of quantum mechanics. An important reason why the industry does not have a clear understanding of this phenomenon is the current lack of a theoretically solvable cosmological model. Based on the complete model of loop quantum theory, this article solves different levels of Hamiltonian constraint models and simulates black hole information transfer dynamics, especially at extreme points, from analytical results to step-by-step quantum corrections, and attempts to compare the performance of different physical models in simulating quantum advantages during information transmission. Our study shows that even second-order expansions are sufficient to distinguish differences in dynamics at the black hole extremes, but to truly identify a model that has the potential to describe quantum information transfer mechanisms and is significantly different from other models, the theoretical analytical solution should at least extend to level three and above. In addition, the research results such as computational simulation methods and related conclusions cited and improved in this article can provide certain theoretical support and new insights for the research prospects of general relativity loop quantum cosmology and the intersection of quantum information and quantum fields.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529988","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
Simultaneous cooling of two levitated macromagnets in cavity magnomechanical system 同时冷却空腔磁机械系统中的两个悬浮大磁体
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-03-03 DOI: 10.1007/s11128-025-04690-0
Lei Chen, Yang Liu, Liang Bin, Sai-Yun Ye, Rong-Xiang Luo, Zhi-Rong Zhong
{"title":"Simultaneous cooling of two levitated macromagnets in cavity magnomechanical system","authors":"Lei Chen,&nbsp;Yang Liu,&nbsp;Liang Bin,&nbsp;Sai-Yun Ye,&nbsp;Rong-Xiang Luo,&nbsp;Zhi-Rong Zhong","doi":"10.1007/s11128-025-04690-0","DOIUrl":"10.1007/s11128-025-04690-0","url":null,"abstract":"<div><p>Cooling the motion of multiple isolated, levitated particles has the potential to explore the limits of quantum mechanics in a new mass regime. This technique not only serves as a foundation for examining macroscopic quantum states and building high-precision sensors, but also crucial for overcoming detrimental cross-coupling and decoherence effects in multimode systems. In this paper, we studied that the center-of-mass modes of multi-magnons can be simultaneously cooled to their quantum ground states. Our scheme is realized by adjusting the coupling position of the particle to compensate for the reduction in coupling strength due to magnonic excitations. Additionally, we find that the cooling rate of a magnon is influenced by its own coupling strength and the effective detuning. The numerical simulation results indicate that the lowest phonon occupancy can be cooled to less than 1 simultaneously.\u0000</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533163","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
Parameterized entanglement measures with computable lower bounds 具有可计算下界的参数化纠缠测度
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-03-03 DOI: 10.1007/s11128-025-04692-y
Gui Bao, Xue-Na Zhu
{"title":"Parameterized entanglement measures with computable lower bounds","authors":"Gui Bao,&nbsp;Xue-Na Zhu","doi":"10.1007/s11128-025-04692-y","DOIUrl":"10.1007/s11128-025-04692-y","url":null,"abstract":"<div><p>In this work, we present the parameterized entanglement measures, <i>q</i>-concurrence with <span>(q&gt;0)</span> and <span>(qnot =1)</span>. And we derive analytical lower bounds for the entanglement measures by using positive partial transposition and realignment criteria, detailed examples are presented. Moreover, we show that the increase of <i>q</i>-concurrence <span>((1&lt;q&lt;2))</span> for some superposition states are upper bounded by 1/2.\u0000</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533157","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
ANN-enhanced detection of multipartite entanglement in a three-qubit NMR quantum processor 在三量子比特 NMR 量子处理器中对多方纠缠的 ANN 增强检测
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-03-01 DOI: 10.1007/s11128-025-04696-8
Vaishali Gulati, Shivanshu Siyanwal,  Arvind, Kavita Dorai
{"title":"ANN-enhanced detection of multipartite entanglement in a three-qubit NMR quantum processor","authors":"Vaishali Gulati,&nbsp;Shivanshu Siyanwal,&nbsp; Arvind,&nbsp;Kavita Dorai","doi":"10.1007/s11128-025-04696-8","DOIUrl":"10.1007/s11128-025-04696-8","url":null,"abstract":"<div><p>We use an artificial neural network (ANN) model to identify the entanglement class of an experimentally generated three-qubit pure state drawn from one of the six inequivalent classes under stochastic local operations and classical communication (SLOCC). The ANN model is also able to detect the presence of genuinely multipartite entanglement (GME) in the state. We apply data science techniques to reduce the dimensionality of the problem, which corresponds to a reduction in the number of required density matrix elements to be computed. The ANN model is first trained on a simulated dataset containing randomly generated states and is later tested and validated on noisy experimental three-qubit states cast in the canonical form and generated on a nuclear magnetic resonance (NMR) quantum processor. We benchmark the ANN model via support vector machines (SVMs) and K-nearest neighbor (KNN) algorithms and compare the results of our ANN-based entanglement classification with existing three-qubit SLOCC entanglement classification schemes such as 3-tangle and correlation tensors. Our results demonstrate that the ANN model can perform GME detection and SLOCC class identification with high accuracy, using a priori knowledge of only a few density matrix elements as inputs. Since the ANN model works well with a reduced input dataset, it is an attractive method for entanglement classification in real-life situations with limited experimental data sets.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527655","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
Applications of disentropy in the analysis of randomness generated by quantum random number generators 非熵在量子随机数发生器随机分析中的应用
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-02-28 DOI: 10.1007/s11128-025-04694-w
S. T. de Oliveira, J. S. de Andrade, G. L. de Oliveira, R. V. Ramos
{"title":"Applications of disentropy in the analysis of randomness generated by quantum random number generators","authors":"S. T. de Oliveira,&nbsp;J. S. de Andrade,&nbsp;G. L. de Oliveira,&nbsp;R. V. Ramos","doi":"10.1007/s11128-025-04694-w","DOIUrl":"10.1007/s11128-025-04694-w","url":null,"abstract":"<div><p>In the present work, the randomness measure based on the disentropy of the autocorrelation function is used to quantify the randomness of binary sequences produced by quantum random number generators (QRNG). A homemade QRNG based on vacuum fluctuations and the Quantis QRNG, developed by IDQuantique and whose data are available at http://qrng.ethz.ch/live/, are analyzed. Our results show that the disentropy of the autocorrelation is a useful tool for performance analysis of QRNGs.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-025-04694-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521698","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
Quantum coherence and weak values based on rank-1 POVMs 基于秩1 povm的量子相干性和弱值
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-02-28 DOI: 10.1007/s11128-025-04685-x
Ouyang Yu, Zhengli Chen, Fangguo Ren, Feier Han
{"title":"Quantum coherence and weak values based on rank-1 POVMs","authors":"Ouyang Yu,&nbsp;Zhengli Chen,&nbsp;Fangguo Ren,&nbsp;Feier Han","doi":"10.1007/s11128-025-04685-x","DOIUrl":"10.1007/s11128-025-04685-x","url":null,"abstract":"<div><p>In this article, we first obtain a characterization of relationships between pairwise linearly independent (PLI) rank-1 POVMs and Hamel bases for <span>({mathbb {C}}^{d})</span>. By utilizing the obtained relationships, a necessary and sufficient condition is provided for the set of incoherent states based on PLI rank-1 POVM to be empty. Secondly, we deduce a detailed characterization of incoherent pure states based on a PLI rank-1 POVM. Finally, by properties of rank-1 POVMs and equioverlapping measurements, we give some relationships between weak values of an observable and its trace and expectations.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521697","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
Average and maximal coherence based on the modified generalized Wigner–Yanase–Dyson skew information 基于修正广义Wigner-Yanase-Dyson偏态信息的平均相干和最大相干
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-02-27 DOI: 10.1007/s11128-025-04691-z
Yajing Fan, Lulu Li
{"title":"Average and maximal coherence based on the modified generalized Wigner–Yanase–Dyson skew information","authors":"Yajing Fan,&nbsp;Lulu Li","doi":"10.1007/s11128-025-04691-z","DOIUrl":"10.1007/s11128-025-04691-z","url":null,"abstract":"<div><p>Coherence is a fundamental feature of quantum mechanics and plays a crucial role in quantum information. In recent years, the quantification of coherence has aroused great interest, and various coherence quantifiers have appeared. We evaluate average coherence of a quantum state based on the modified generalized Wigner–Yanase–Dyson skew information with respect to all orthonormal bases as well as with respect to arbitrary mutually unbiased bases, and demonstrate their equivalence. We further evaluate average variance and average modified generalized variance, and establish several trade-off relations between them and linear entropy, the Brukner–Zeilinger invariant information and average coherence based on the Hilbert–Schmidt norm. In addition, we introduce two kinds of maximal coherence of a quantum state based on the modified generalized Wigner–Yanase–Dyson skew information and metric-adjusted skew information, respectively. Both of them extend the existing maximal coherence based on the Wigner–Yanase skew information and Wigner–Yanase–Dyson skew information. At the same time, it is verified numerically that the maximal coherence is almost equivalent to the average coherence in high-dimensional systems.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496871","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
Multi-qubit hierarchical quantum state sharing with authentication 具有身份验证的多量子位分层量子态共享
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-02-25 DOI: 10.1007/s11128-025-04686-w
Tianai Zhou, Xiu-Bo Chen, Gang Xu, Ying Guo, Zongpeng Li
{"title":"Multi-qubit hierarchical quantum state sharing with authentication","authors":"Tianai Zhou,&nbsp;Xiu-Bo Chen,&nbsp;Gang Xu,&nbsp;Ying Guo,&nbsp;Zongpeng Li","doi":"10.1007/s11128-025-04686-w","DOIUrl":"10.1007/s11128-025-04686-w","url":null,"abstract":"<div><p>To effectively guarantee the authorized communication between the participants and further enhance the information transmission capacity of the link, a multi-qubit hierarchical quantum state sharing protocol with authentication is proposed. First, a type of four-qubit cluster state is generated as the quantum resource, which can be used for the whole process of subsequent authentication and secret sharing, thus eliminating the need to prepare additional entanglement resources. Then, all the agents simply perform <i>Z</i>-basis measurement operations, and the sender can verify that the agents are legitimate, allowing authentication to be conveniently implemented. Finally, depending on the nature of the selected cluster states, the ability of the agent to recover the secret state is asymmetric, and the target quantum state to be shared can be an arbitrary <i>n</i>-qubit state. Furthermore, we validate the correctness of the sharing process for a particular two-qubit state utilizing the IBM simulator and check the security of the proposed protocol against some quantum attacks.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481141","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
On ((theta , Theta ))-cyclic codes and their applications in constructing QECCs ((theta , Theta )) -循环码及其在构建qecc中的应用
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-02-25 DOI: 10.1007/s11128-025-04684-y
Awadhesh Kumar Shukla, Sachin Pathak, Om Prakash Pandey, Vipul Mishra, Ashish Kumar Upadhyay
{"title":"On ((theta , Theta ))-cyclic codes and their applications in constructing QECCs","authors":"Awadhesh Kumar Shukla,&nbsp;Sachin Pathak,&nbsp;Om Prakash Pandey,&nbsp;Vipul Mishra,&nbsp;Ashish Kumar Upadhyay","doi":"10.1007/s11128-025-04684-y","DOIUrl":"10.1007/s11128-025-04684-y","url":null,"abstract":"<div><p>Let <span>({mathbb {F}}_q)</span> be a finite field, where <i>q</i> is an odd prime power. Let <span>(R={mathbb {F}}_q+u{mathbb {F}}_q+v{mathbb {F}}_q+uv{mathbb {F}}_q)</span> with <span>(u^2=u,v^2=v,uv=vu)</span>. In this paper, we study the algebraic structure of <span>((theta , Theta ))</span>-cyclic codes of block length (<i>r</i>, <i>s</i>) over <span>({mathbb {F}}_qR.)</span> Specifically, we analyze the structure of these codes as left <span>(R[x:Theta ])</span>-submodules of <span>({mathfrak {R}}_{r,s} = frac{{mathbb {F}}_q[x:theta ]}{langle x^r-1rangle } times frac{R[x:Theta ]}{langle x^s-1rangle })</span>. Our investigation involves determining generator polynomials and minimal generating sets for this family of codes. Further, we discuss the algebraic structure of separable codes. A relationship between the generator polynomials of <span>((theta , Theta ))</span>-cyclic codes over <span>({mathbb {F}}_qR)</span> and their duals is established. Moreover, we calculate the generator polynomials of the dual of <span>((theta , Theta ))</span>-cyclic codes. As an application of our study, we provide a construction of quantum error-correcting codes (QECCs) from <span>((theta , Theta ))</span>-cyclic codes of block length (<i>r</i>, <i>s</i>) over <span>({mathbb {F}}_qR)</span>. We support our theoretical results with illustrative examples.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481142","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
Unitary orbit optimization of quantum f-divergence 量子f-散度的单轨道优化
IF 2.2 3区 物理与天体物理
Quantum Information Processing Pub Date : 2025-02-25 DOI: 10.1007/s11128-025-04688-8
Haojian Li, Xiaojing Yan
{"title":"Unitary orbit optimization of quantum f-divergence","authors":"Haojian Li,&nbsp;Xiaojing Yan","doi":"10.1007/s11128-025-04688-8","DOIUrl":"10.1007/s11128-025-04688-8","url":null,"abstract":"<div><p>Hirche and Tomamichel recently introduced quantum <i>f</i>-divergence as an integral of quantum Hockey stick divergence. In this paper, we study the optimization of quantum <i>f</i>-divergence between the unitary orbits. The proof relies on the well-known Lidskii’s inequality. We also generalize the result to the mixed unitary orbits.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481140","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
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