Advanced quantum technologies最新文献_第6页

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

UltraLow Threshold Phonon Laser in a PT $mathcal {PT}$ -Symmetric Cavity Magnomechanical System

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-27 DOI: 10.1002/qute.202400350

Ming-Song Ding, Li Zheng, Ying Shi, Yu-Jie Liu

{"title":"UltraLow Threshold Phonon Laser in a \u0000 \u0000 PT\u0000 $mathcal {PT}$\u0000 -Symmetric Cavity Magnomechanical System","authors":"Ming-Song Ding, Li Zheng, Ying Shi, Yu-Jie Liu","doi":"10.1002/qute.202400350","DOIUrl":"https://doi.org/10.1002/qute.202400350","url":null,"abstract":"The magnomechanical interaction arises from the coupling between magnons and phonons, an effect that has attracted significant attention. Leveraging this foundation, an ultralow threshold phonon laser within a parity-time (<math>\u0000 <semantics>\u0000 <mi>PT</mi>\u0000 <annotation>$mathcal {PT}$</annotation>\u0000 </semantics></math>)-symmetric cavity magnomechanical (CMM) system is investigated. The <math>\u0000 <semantics>\u0000 <mi>PT</mi>\u0000 <annotation>$mathcal {PT}$</annotation>\u0000 </semantics></math>-symmetry is achieved by incorporating a gain mechanism into the cavity mode and the amplification of phonon excitation number is achieved through the pumping of magnon mode. As the gain and dissipation approach the equilibrium, the mechanical gain undergoes a notable amplification, giving rise to a phonon laser action characterized by an ultralow threshold condition. This finding not only promotes a cross-disciplinary approach in fields such as non-Hermitian physics and quantum magnomechanics but also points to a promising path for enhancing the magnomechanical effect.","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":"143119945","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

Approximating Maximum Independent Set on Rydberg Atom Arrays Using Local Detunings 利用局部调谐近似雷德贝格原子阵列上的最大独立集

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-26 DOI: 10.1002/qute.202400291

Hyeonjun Yeo, Ha Eum Kim, Kabgyun Jeong

{"title":"Approximating Maximum Independent Set on Rydberg Atom Arrays Using Local Detunings","authors":"Hyeonjun Yeo, Ha Eum Kim, Kabgyun Jeong","doi":"10.1002/qute.202400291","DOIUrl":"https://doi.org/10.1002/qute.202400291","url":null,"abstract":"Rydberg atom arrays operated by a quantum adiabatic principle are among the most promising quantum simulating platforms due to their scalability and long coherence time. From the perspective of combinatorial optimization, they offer an efficient solution for an intrinsic maximum independent set problem because of the resemblance between the Rydberg Hamiltonian and the cost function of the maximum independent set problem. In this study, a strategy is suggested to approximate maximum independent sets by adjusting local detunings on the Rydberg Hamiltonian according to each vertex's vertex support, which is a quantity that represents connectivity between vertices. By doing so, the strategy successfully reduces the error rate three times for the checkerboard graphs with defects when the adiabaticity is sufficient. In addition, the strategy decreases the error rate for random graphs even when the adiabaticity is relatively insufficient. Moreover, it is shown that the strategy helps to prepare a quantum many-body ground state by raising the fidelity between the evolved quantum state and a 2D cat state on a square lattice. Finally, the strategy is combined with the non-abelian adiabatic mixing and this approach is highly successful in finding maximum independent sets compared to the conventional adiabatic evolution with local detunings.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119601","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

Spatial Distribution Control of Room-Temperature Single Photon Emitters in the Telecom Range from GaN Thin Films Grown on Patterned Sapphire Substrates

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-26 DOI: 10.1002/qute.202400177

Hyemin Kim, Yong-Ho Song, Young-Ho Ko, Yong-Hoon Cho

引用次数: 0

Quantum Tunneling: From Theory to Error-Mitigated Quantum Simulation

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-22 DOI: 10.1002/qute.202400163

Sorana Catrina, Alexandra Băicoianu

{"title":"Quantum Tunneling: From Theory to Error-Mitigated Quantum Simulation","authors":"Sorana Catrina, Alexandra Băicoianu","doi":"10.1002/qute.202400163","DOIUrl":"https://doi.org/10.1002/qute.202400163","url":null,"abstract":"Ever since the discussions about a possible quantum computer arised, quantum simulations have been at the forefront of possible utilities, with the task of quantum simulations being one that promises quantum advantage. Recently, advancements have made it feasible to simulate complex molecules using Variational Quantum Eigensolvers or study the dynamics of many-body spin Hamiltonians. These simulations have the potential to yield valuable outcomes through the application of error mitigation techniques. Simulating smaller models carries a great amount of importance as well and currently, in the Noisy Intermediate Scale Quantum era, is more feasible since it is less prone to errors. The objective of this work is to examine the theoretical background and the circuit implementation of a quantum tunneling simulation, with an emphasis on hardware considerations. This study presents the theoretical background required for such implementation and highlights the main stages of its development. By building on classic approaches of quantum tunneling simulations, this study aims at improving the result of such simulations by employing error mitigation techniques, Zero Noise Extrapolation, and Readout Error Mitigation and uses them in conjunction with multiprogramming of the quantum chip, a technique used for solving the hardware under-utilization problem that arises in such contexts.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400163","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118273","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

Quantum Transfer Learning with Adversarial Robustness for Classification of High-Resolution Image Datasets

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-22 DOI: 10.1002/qute.202400268

Amena Khatun, Muhammad Usman

引用次数: 0

Influence of Pumping Laser Intensity Uniformity on Hybrid Optically Pumped Comagnetometer in the SERF Regime

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-18 DOI: 10.1002/qute.202400222

Longyan Ma, Ye Liu, Haoying Pang, Jiale Quan, Xiaohan Ge, Lihong Duan, Wei Quan

{"title":"Influence of Pumping Laser Intensity Uniformity on Hybrid Optically Pumped Comagnetometer in the SERF Regime","authors":"Longyan Ma, Ye Liu, Haoying Pang, Jiale Quan, Xiaohan Ge, Lihong Duan, Wei Quan","doi":"10.1002/qute.202400222","DOIUrl":"https://doi.org/10.1002/qute.202400222","url":null,"abstract":"The effect of pumping laser intensity uniformity (PLIU) on the operation of a hybrid optically pumped comagnetometer operating in the spin-exchange relaxation-free regime (SERF) regime is investigated in this paper. First, an analytical steady-state output model for the comagnetometer with two alkali-metal atoms and one noble-gas atom is presented. By varying the diameter of the pumping laser beam to control the PLIU, 3D distribution models of the electron spin and nuclear spin polarization under different PLIU conditions are obtained. In the experiment, the effects of PLIU on multi-parameter, low-frequency magnetic-noise suppression capability, and long-term stability of the SERF comagnetometer are studied. The results indicate that within a certain range, increasing the diameter of the pumping laser beam improves the polarization uniformity of the atomic ensemble and reduces the light shift of the comagnetometer. As a result, both the low-frequency magnetic noise suppression capability and the long-term stability of the system increase. However, further reduction of the pumping laser diameter leads to a reversal of the system performance metrics, suggesting the presence of a tipping point. The research presented in this article is critical for advancing the efficient polarization study and hyperpolarization of SERF comagnetometers.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116267","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 Quantum Image Secret Sharing Scheme Based on Designated Multi-Verifier Signature

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-18 DOI: 10.1002/qute.202400267

Ye Wang, Guang-Bao Xu, Dong-Huan Jiang

{"title":"A Quantum Image Secret Sharing Scheme Based on Designated Multi-Verifier Signature","authors":"Ye Wang, Guang-Bao Xu, Dong-Huan Jiang","doi":"10.1002/qute.202400267","DOIUrl":"https://doi.org/10.1002/qute.202400267","url":null,"abstract":"This paper presents a quantum image secret sharing scheme based on designated multi-verifier signature. First, <math>\u0000 <semantics>\u0000 <mi>k</mi>\u0000 <annotation>$k$</annotation>\u0000 </semantics></math> share images are generated by a 2D hyperchaotic system incorporating sinusoidal mapping, Henon mapping, and Cubic mapping using the cascade modulation method. Quantum Arnold scrambling and diffusion are performed on the secret image. Subsequently, the concept of designated multi-verifier signature is introduced. In the secret image sharing phase, the pixel values of the share images are used to sign the secret image, and the signed secret image and <math>\u0000 <semantics>\u0000 <mi>k</mi>\u0000 <annotation>$k$</annotation>\u0000 </semantics></math> share images are sent to a trusted third party and <math>\u0000 <semantics>\u0000 <mi>k</mi>\u0000 <annotation>$k$</annotation>\u0000 </semantics></math> designated verifiers, respectively. In this scheme, no carrier images are required, and the share images held by the participants do not contain any information about the secret image. Finally, simulation experiments and security analysis are conducted on IBM Qiskit platform and Matlab software.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116268","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