arXiv - PHYS - Quantum Physics最新文献_第7页

1xN DWDM channel selective quantum frequency conversion 1xN DWDM 信道选择性量子频率转换

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.08025

Tomoaki Arizono, Toshiki Kobayashi, Shigehito Miki, Hirotaka Terai, Tsuyoshi Kodama, Hideki Shimoi, Takashi Yamamoto, Rikizo Ikuta

引用次数: 0

Weaver: A Retargetable Compiler Framework for FPQA Quantum Architectures 韦弗用于 FPQA 量子架构的可重目标编译器框架

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.07870

Oğuzcan Kırmemiş, Francisco Romão, Emmanouil Giortamis, Pramod Bhatotia

{"title":"Weaver: A Retargetable Compiler Framework for FPQA Quantum Architectures","authors":"Oğuzcan Kırmemiş, Francisco Romão, Emmanouil Giortamis, Pramod Bhatotia","doi":"arxiv-2409.07870","DOIUrl":"https://doi.org/arxiv-2409.07870","url":null,"abstract":"While the prominent quantum computing architectures are based on\u0000superconducting technology, new quantum hardware technologies are emerging,\u0000such as Trapped Ions, Neutral Atoms (or FPQAs), Silicon Spin Qubits, etc. This\u0000diverse set of technologies presents fundamental trade-offs in terms of\u0000scalability, performance, manufacturing, and operating expenses. To manage\u0000these diverse quantum technologies, there is a growing need for a retargetable\u0000compiler that can efficiently adapt existing code to these emerging hardware\u0000platforms. Such a retargetable compiler must be extensible to support new and\u0000rapidly evolving technologies, performant with fast compilation times and\u0000high-fidelity execution, and verifiable through rigorous equivalence checking\u0000to ensure the functional equivalence of the retargeted code. To this end, we present $Weaver$, the first extensible, performant, and\u0000verifiable retargetable quantum compiler framework with a focus on FPQAs due to\u0000their unique, promising features. $Weaver$ introduces WQASM, the first formal\u0000extension of the standard OpenQASM quantum assembly with FPQA-specific\u0000instructions to support their distinct capabilities. Next, $Weaver$ implements\u0000the WOptimizer, an extensible set of FPQA-specific optimization passes to\u0000improve execution quality. Last, the WChecker automatically checks for\u0000equivalence between the original and the retargeted code. Our evaluation shows\u0000that $Weaver$ improves compilation times by $10^3times$, execution times by\u0000$4.4times$, and execution fidelity by $10%$, on average, compared to\u0000superconducting and state-of-the-art (non-retargetable) FPQA compilers.","PeriodicalId":501226,"journal":{"name":"arXiv - PHYS - Quantum Physics","volume":"105 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Classifying Multipartite Continuous Variable Entanglement Structures through Data-augmented Neural Networks 通过数据增强神经网络对多方连续可变纠缠结构进行分类

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.07909

Xiaoting Gao, Mingsheng Tian, Feng-Xiao Sun, Ya-Dong Wu, Yu Xiang, Qiongyi He

{"title":"Classifying Multipartite Continuous Variable Entanglement Structures through Data-augmented Neural Networks","authors":"Xiaoting Gao, Mingsheng Tian, Feng-Xiao Sun, Ya-Dong Wu, Yu Xiang, Qiongyi He","doi":"arxiv-2409.07909","DOIUrl":"https://doi.org/arxiv-2409.07909","url":null,"abstract":"Neural networks have emerged as a promising paradigm for quantum information\u0000processing, yet they confront the challenge of generating training datasets\u0000with sufficient size and rich diversity, which is particularly acute when\u0000dealing with multipartite quantum systems. For instance, in the task of\u0000classifying different structures of multipartite entanglement in continuous\u0000variable systems, it is necessary to simulate a large number of\u0000infinite-dimension state data that can cover as many types of non-Gaussian\u0000states as possible. Here, we develop a data-augmented neural network to\u0000complete this task with homodyne measurement data. A quantum data augmentation\u0000method based on classical data processing techniques and quantum physical\u0000principles is proposed to efficiently enhance the network performance. By\u0000testing on randomly generated tripartite and quadripartite states, we\u0000demonstrate that the network can indicate the entanglement structure among the\u0000various partitions and the accuracies are significantly improved with data\u0000augmentation. Our approach allows us to further extend the use of data-driven\u0000machine learning techniques to more complex tasks of learning quantum systems\u0000encoded in a large Hilbert space.","PeriodicalId":501226,"journal":{"name":"arXiv - PHYS - Quantum Physics","volume":"105 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Superior decoy state and purification quantum key distribution protocols for realistic quantum-dot based single photon sources 基于现实量子点的单光子源的卓越诱饵态和净化量子密钥分发协议

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.07939

Yoad Ordan, Yuval Bloom, Tamar Levin, Kfir Sulimany, Jennifer A. Hollingsworth, Ronen Rapaport

{"title":"Superior decoy state and purification quantum key distribution protocols for realistic quantum-dot based single photon sources","authors":"Yoad Ordan, Yuval Bloom, Tamar Levin, Kfir Sulimany, Jennifer A. Hollingsworth, Ronen Rapaport","doi":"arxiv-2409.07939","DOIUrl":"https://doi.org/arxiv-2409.07939","url":null,"abstract":"The original proposal of quantum key distribution (QKD) was based on ideal\u0000single photon sources, which 40 years later, are still challenging to develop.\u0000Therefore, the development of decoy state protocols using weak coherent states\u0000(WCS) from lasers, set the frontier in terms of secure key rates. Here, we\u0000propose and experimentally emulate two simple-to-implement protocols that allow\u0000practical, far from ideal sub-Poissonian photon sources to outperform\u0000state-of-the-art WCS. By engineering the photon statistics of a quantum dot's\u0000biexciton-exciton cascade, we show that either a truncated decoy state protocol\u0000or a heralded purification protocol can be employed to achieve a significantly\u0000increased performance in terms of the maximal allowed channel loss for secure\u0000key creation, which can exceed that of WCS by more than 3dB. We then show that\u0000our recently demonstrated room temperature single photon sources, based on\u0000giant colloidal quantum dots coupled to nano-antennas, are already well within\u0000the optimal performance range. These protocols can be utilized efficiently on a\u0000host of various sub-Poissonian quantum emitters having controllable photon\u0000statistics, offering a practical approach to QKD without the hindering\u0000requirements on the single photon purity of the photon source.","PeriodicalId":501226,"journal":{"name":"arXiv - PHYS - Quantum Physics","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photonic Quantum Computers 光子量子计算机

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.08229

M. AbuGhanem

引用次数: 0

Spatiotemporal Photon Blockade for Nonreciprocal Quantum Absorption 非互惠量子吸收的时空光子阻断

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.08137

Sajjad Taravati

引用次数: 0

Photon pair generation via down-conversion in III-V semiconductor microrings: modal dispersion and quasi-phase matching 通过 III-V 族半导体微镜中的下转换产生光子对：模态色散和准相位匹配

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.08230

Samuel E. Fontaine, Colin Vendromin, Trevor J. Steiner, Amirali Atrli, Lillian Thiel, Joshua Castro, Galan Moody, John Bowers, Marco Liscidini, J. E. Sipe

{"title":"Photon pair generation via down-conversion in III-V semiconductor microrings: modal dispersion and quasi-phase matching","authors":"Samuel E. Fontaine, Colin Vendromin, Trevor J. Steiner, Amirali Atrli, Lillian Thiel, Joshua Castro, Galan Moody, John Bowers, Marco Liscidini, J. E. Sipe","doi":"arxiv-2409.08230","DOIUrl":"https://doi.org/arxiv-2409.08230","url":null,"abstract":"We explore how III-V semiconductor microring resonators can efficiently\u0000generate photon pairs and squeezed vacuum states via spontaneous parametric\u0000down-conversion by utilizing their built-in quasi phase matching and modal\u0000dispersion. We present an analytic expression for the biphoton wave function of\u0000photon pairs generated by weak pump pulses, and characterize the squeezed\u0000states that result under stronger pumping conditions. Our model includes loss,\u0000and captures the statistics of the scattered photons. A detailed sample\u0000calculation shows that for low pump powers conversion efficiencies of\u000010$^{-5}$, corresponding to a rate of 39 MHz for a pump power of 1 $mu$W, are\u0000attainable for rudimentary structures such as a simple microring coupled to a\u0000waveguide, in both the continuous wave and pulsed excitation regimes. Our\u0000results suggest that high levels of squeezing and pump depletion are\u0000attainable, possibly leading to the deterministic generation of non-Gaussian\u0000states","PeriodicalId":501226,"journal":{"name":"arXiv - PHYS - Quantum Physics","volume":"13 21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

QED Corrections in Unstable Vacuum 不稳定真空中的 QED 校正

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.08121

V. A. Zaytsev, V. A. Yerokhin, C. H. Keitel, N. S. Oreshkina

引用次数: 0

Faster Algorithmic Quantum and Classical Simulations by Corrected Product Formulas 通过修正乘积公式实现更快的算法量子和经典模拟

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.08265

Mohsen Bagherimehrab, Dominic W. Berry, Philipp Schleich, Abdulrahman Aldossary, Jorge A. Campos Gonzalez Angulo, Alan Aspuru-Guzik

{"title":"Faster Algorithmic Quantum and Classical Simulations by Corrected Product Formulas","authors":"Mohsen Bagherimehrab, Dominic W. Berry, Philipp Schleich, Abdulrahman Aldossary, Jorge A. Campos Gonzalez Angulo, Alan Aspuru-Guzik","doi":"arxiv-2409.08265","DOIUrl":"https://doi.org/arxiv-2409.08265","url":null,"abstract":"Hamiltonian simulation using product formulas is arguably the most\u0000straightforward and practical approach for algorithmic simulation of a quantum\u0000system's dynamics on a quantum computer. Here we present corrected product\u0000formulas (CPFs), a variation of product formulas achieved by injecting\u0000auxiliary terms called correctors into standard product formulas. We establish\u0000several correctors that greatly improve the accuracy of standard product\u0000formulas for simulating Hamiltonians comprised of two partitions that can be\u0000exactly simulated, a common feature of lattice Hamiltonians, while only adding\u0000a small additive or multiplicative factor to the simulation cost. We show that\u0000correctors are particularly advantageous for perturbed systems, where one\u0000partition has a relatively small norm compared to the other, as they allow the\u0000small norm to be utilized as an additional parameter for controlling the\u0000simulation error. We demonstrate the performance of CPFs by numerical\u0000simulations for several lattice Hamiltonians. Numerical results show our\u0000theoretical error bound for CPFs matches or exceeds the empirical error of\u0000standard product formulas for these systems. CPFs could be a valuable\u0000algorithmic tool for early fault-tolerant quantum computers with limited\u0000computing resources. As for standard product formulas, CPFs could also be used\u0000for simulations on a classical computer.","PeriodicalId":501226,"journal":{"name":"arXiv - PHYS - Quantum Physics","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards Timetronics with Photonic Systems 利用光子系统实现时间电子学

arXiv - PHYS - Quantum Physics Pub Date : 2024-09-12 DOI: arxiv-2409.07885

Ali Emami Kopaei, Karthik Subramaniam Eswaran, Arkadiusz Kosior, Daniel Hodgson, Andrey Matsko, Hossein Taheri, Almut Beige, Krzysztof Sacha

引用次数: 0