Advanced quantum technologies最新文献_第3页

Trotterless Simulation of Open Quantum Systems for NISQ Quantum Devices

IF 4.4

Advanced quantum technologies Pub Date : 2024-10-09 DOI: 10.1002/qute.202400240

Colin Burdine, Enrique P. Blair

引用次数: 0

Benchmarking Multipartite Entanglement Generation with Graph States

IF 4.4

Advanced quantum technologies Pub Date : 2024-10-09 DOI: 10.1002/qute.202400239

René Zander, Colin Kai-Uwe Becker

{"title":"Benchmarking Multipartite Entanglement Generation with Graph States","authors":"René Zander, Colin Kai-Uwe Becker","doi":"10.1002/qute.202400239","DOIUrl":"https://doi.org/10.1002/qute.202400239","url":null,"abstract":"As quantum computing technology slowly matures and the number of available qubits on a QPU gradually increases, interest in assessing the capabilities of quantum computing hardware in a scalable manner is growing. One of the key properties for quantum computing is the ability to generate multipartite entangled states. In this study, aspects of benchmarking entanglement generation capabilities of noisy intermediate-scale quantum (NISQ) devices are discussed based on the preparation of graph states and the verification of entanglement in the prepared states. Thereby, entanglement witnesses that are specifically suited for a scalable experiment design are used. This choice of entanglement witnesses can detect A) bipartite entanglement and B) genuine multipartite entanglement for graph states with constant two measurement settings if the prepared graph state is based on a two-colorable graph, e.g., a square grid graph or one of its subgraphs. With this, it is experimentally verified that a bipartite entangled state comprising all qubits can be prepared on a 127-qubit IBM Quantum superconducting QPU, and genuine multipartite entanglement can be detected for states of up to 23 qubits with quantum readout error mitigation.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400239","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Programmable Activation of Quantum Emitters in High-Purity Silicon with Focused Carbon Ion Beams

IF 4.4

Advanced quantum technologies Pub Date : 2024-10-08 DOI: 10.1002/qute.202400184

M. Hollenbach, N. Klingner, P. Mazarov, W. Pilz, A. Nadzeyka, F. Mayer, N. V. Abrosimov, L. Bischoff, G. Hlawacek, M. Helm, G. V. Astakhov

{"title":"Programmable Activation of Quantum Emitters in High-Purity Silicon with Focused Carbon Ion Beams","authors":"M. Hollenbach, N. Klingner, P. Mazarov, W. Pilz, A. Nadzeyka, F. Mayer, N. V. Abrosimov, L. Bischoff, G. Hlawacek, M. Helm, G. V. Astakhov","doi":"10.1002/qute.202400184","DOIUrl":"https://doi.org/10.1002/qute.202400184","url":null,"abstract":"Carbon implantation at the nanoscale is highly desired for the engineering of defect-based qubits in a variety of materials, including silicon, diamond, silicon carbide (SiC) and hexagonal boron nitride (hBN). However, the lack of focused carbon ion beams does not allow for the full disclosure of their potential for application in quantum technologies. Here, a carbon source for focused ion beams is developed and utilized for the simultaneous creation of two types of quantum emitters in silicon, the W and G centers. Furthermore, a multi-step implantation protocol is applied for the programmable activation of the G centers with a spatial resolution better than 250 nm. This approach provides a route for significant enhancement of the creation yield of single G centers in carbon-free silicon wafers, including commercial silicon-on-insulator wafers. The experimental demonstration is an important step toward nanoscale engineering of telecom quantum emitters in silicon of high crystalline quality and isotope purity.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400184","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Device-Independent Dimension Leakage Null Test on Qubits at Low Operational Cost

IF 4.4

Advanced quantum technologies Pub Date : 2024-10-08 DOI: 10.1002/qute.202400264

Tomasz Rybotycki, Tomasz Białecki, Josep Batle, Adam Bednorz

引用次数: 0

State Transfer in Noisy Modular Quantum Networks

IF 4.4

Advanced quantum technologies Pub Date : 2024-10-04 DOI: 10.1002/qute.202400316

Markku Hahto, Jyrki Piilo, Johannes Nokkala

{"title":"State Transfer in Noisy Modular Quantum Networks","authors":"Markku Hahto, Jyrki Piilo, Johannes Nokkala","doi":"10.1002/qute.202400316","DOIUrl":"https://doi.org/10.1002/qute.202400316","url":null,"abstract":"Quantum state transfer is the act of transferring quantum information from one system in a quantum network to another without physically transporting carriers of quantum information, but instead engineering a Hamiltonian such that the state of the sender is transferred to the receiver through the dynamics of the whole network. A generalization of quantum state transfer called quantum routing concerns simultaneous transfers between multiple pairs in a quantum network, imposing limitations on its structure. This study considers transfer of Gaussian states over noisy quantum networks with modular structure, which have been identified as a suitable platform for quantum routing. Two noise models are compared, affecting either the network topology or the network constituents, studying their effects on both the transfer fidelities and the network properties. The two models are found to affect different features of the network allowing for the identification and quantification of the noise. These features are then used as a guide toward different strategies for the compensation of the noise, and to examine how the compensation strategies perform. The results show that in general, modular networks are more robust to noise than monolithic ones.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400316","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mott Transitions: A Brief Review 莫特过渡：简要回顾

IF 4.4

Advanced quantum technologies Pub Date : 2024-10-01 DOI: 10.1002/qute.202200186

Mukul S. Laad, Luis Craco

{"title":"Mott Transitions: A Brief Review","authors":"Mukul S. Laad, Luis Craco","doi":"10.1002/qute.202200186","DOIUrl":"https://doi.org/10.1002/qute.202200186","url":null,"abstract":"This short review provides an overview of some aspects of the current understanding of Mott insulators and Mott metal-insulator transitions. The development of this field is traced, from earliest classical views to the state-of-the-art picture based on methods of quantum field theory. A quasi-local view point, characterizing “pure” Mott physics, throughout this article is focused on. Following an extensive discussion on Mott transitions in one- and multi-orbital Hubbard models, progress is reviewed in first-principles correlation-based approaches in achieving a quantitative description of insulator-metal transitions in two celebrated Mott materials. Building thereupon, success of such approaches in providing microscopic justification for the famed Mott criterion, as well as in the attempts to model emerging devices is reviewed briefly. The study is concluded with a discussion of a class of Mott insulators modeled by the Kugel-Khomskii model, and discuss how progress in the understanding of novel quantum liquid-crystal-like order provides an attractive opportunity to gain insight into topologically ordered states and topological-to-trivial phase transitions for certain quantum spin models in terms of a dual description in terms of Landau-like symmetry breaking.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 12","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868061","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

A Scalable Fully Distributed Quantum Alternating Direction Method of Multipliers for Unit Commitment Problems

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-27 DOI: 10.1002/qute.202400286

Mingyu Yang, Fang Gao, Wei Dai, Dejian Huang, Qing Gao, Feng Shuang

{"title":"A Scalable Fully Distributed Quantum Alternating Direction Method of Multipliers for Unit Commitment Problems","authors":"Mingyu Yang, Fang Gao, Wei Dai, Dejian Huang, Qing Gao, Feng Shuang","doi":"10.1002/qute.202400286","DOIUrl":"https://doi.org/10.1002/qute.202400286","url":null,"abstract":"The unit commitment problem (UCP) is a non-convex mixed-integer programming issue that is crucial in the power system. The quantum alternating direction method of multipliers (QADMM) decompose the UCP into quadratic binary optimization (QBO) subproblems and continuous optimization subproblems. Relaxing constraints reformulate the QBO into a quadratic unconstrainted binary optimization (QUBO) problem, which can be addressed using quantum algorithms. Nevertheless, this approach lacks precision for hard constraints and requires more qubits, limiting the UCP scale addressed within QADMM. To confront the aforementioned challenges, this study introduces the consensus constraint-encoded divide-and-conquer QADMM (CCDC-QADMM). As a scalable fully distributed algorithm, CCDC-QADMM decomposes the UCP into two subproblems: Subproblem 1, a QUBO problem embedded with minimum up/down constraints, and Subproblem 2, a UC problem without minimum up/down constraints. By employing variable duplication for decoupling and leveraging the principles of average consensus, CCDC-QADMM achieves fully distributed computation. Specifically, in the QUBO subproblem 1, this algorithm encodes minimum up/down constraints into a hard constraint form within the mixing Hamiltonian. Simultaneously, it employs a divide-and-conquer strategy to accommodate the current constraints posed by the limited qubit resources. The effectiveness and scalability of this algorithm are substantiated through practical validation within real-world UCP scenarios.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119946","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

Donor–Acceptor Recombination Emission in Hydrogen-Terminated Nanodiamond

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-27 DOI: 10.1002/qute.202400263

Dmitrii G. Pasternak, Alexey M. Romshin, Rustem H. Bagramov, Aidar I. Galimov, Alexey A. Toropov, Dmitry A. Kalashnikov, Victor Leong, Arkady M. Satanin, Oleg S. Kudryavtsev, Alexander V. Gritsienko, Andrey L. Chernev, Vladimir P. Filonenko, Igor I. Vlasov

{"title":"Donor–Acceptor Recombination Emission in Hydrogen-Terminated Nanodiamond","authors":"Dmitrii G. Pasternak, Alexey M. Romshin, Rustem H. Bagramov, Aidar I. Galimov, Alexey A. Toropov, Dmitry A. Kalashnikov, Victor Leong, Arkady M. Satanin, Oleg S. Kudryavtsev, Alexander V. Gritsienko, Andrey L. Chernev, Vladimir P. Filonenko, Igor I. Vlasov","doi":"10.1002/qute.202400263","DOIUrl":"https://doi.org/10.1002/qute.202400263","url":null,"abstract":"Fluorescence spectra of nanodiamonds synthesized at high pressure from adamantane and other organic compounds show narrow (≈1 nm) lines of unknown origin over the spectroscopic range from ≈500 to 800 nm. The study proposes and experimentally confirms the hypothesis that these lines are related to radiative recombination of donor–acceptor pairs (DAP). According to the experimental data, these pairs can be formed from donor-like substitutional nitrogen present in the diamond lattice and 2D acceptor layer resulting from the effect of transfer doping on the nanodiamond surface. A peculiar behavior of the narrow lines is identified within the temperature range of 100–10 K: their energy position slightly shifts downward, and the majority of the lines divide into two or more components as the temperature decreases. The lines are shown to be predominantly associated with single photon emitters, with an emission rate exceeding 1 million counts s−1 at room temperature. A new narrowband source of room-temperature fluorescence found in hydrogen-terminated nanodiamonds push horizons for quantum optical technologies related to the development of single photon emitters and temperature nanosensors.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400263","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Parallel Gating on Gate Fidelities in Linear, Square, and Star Arrays of Noisy Flip-Flop Qubits

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-27 DOI: 10.1002/qute.202400341

Marco De Michielis, Elena Ferraro

引用次数: 0

Classification of Single-Photon Emitters in Confocal Fluorescence Microscope Images by Deep Convolutional Neural Networks 利用深度卷积神经网络对共聚焦荧光显微镜图像中的单光子发光体进行分类

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-27 DOI: 10.1002/qute.202400173

Dongbeom Kim, Seoyoung Paik, Jeongeun Park, Seung-Jae Hwang, Shinobu Onoda, Takeshi Ohshima, Dong-Hee Kim, Sang-Yun Lee

{"title":"Classification of Single-Photon Emitters in Confocal Fluorescence Microscope Images by Deep Convolutional Neural Networks","authors":"Dongbeom Kim, Seoyoung Paik, Jeongeun Park, Seung-Jae Hwang, Shinobu Onoda, Takeshi Ohshima, Dong-Hee Kim, Sang-Yun Lee","doi":"10.1002/qute.202400173","DOIUrl":"https://doi.org/10.1002/qute.202400173","url":null,"abstract":"In the rapidly evolving field of quantum information technology, the accurate and efficient classification of single-photon emitters is paramount. Traditional methods, which rely on conducting time-intensive Hanbury Brown-Twiss (HBT) experiments to acquire the 2nd-order correlation function of photon statistics, are not efficient. This study presents a pioneering solution that employs Deep Convolutional Neural Networks (CNNs) to classify single-photon emitters in confocal fluorescence microscope images, thereby bypassing the need for laborious HBT experiments. Focusing on the nitrogen-vacancy centers in diamond, the model is trained using fluorescence images of emitters that have been previously classified through HBT experiments. Applied to unclassified fluorescence images, the model achieves up to 98% accuracy in classification, substantially accelerating the identification process. This advancement not only makes the classification workflow more efficient but also promises wider applicability across various color centers and isolated atomic systems that necessitate imaging for isolation verification. This research signifies a substantial advancement in the application of quantum technologies, leveraging the power of deep learning to optimize the utilization of single-photon emitters.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 11","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0