Advanced quantum technologies最新文献_第5页

Laser Beam Induced Charge Collection for Defect Mapping and Spin State Readout in Diamond 激光束诱导电荷收集用于金刚石缺陷绘图和自旋态读出

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-20 DOI: 10.1002/qute.202400237

Dominic Reinhardt, Julia Heupel, Cyril Popov, Ralf Wunderlich

{"title":"Laser Beam Induced Charge Collection for Defect Mapping and Spin State Readout in Diamond","authors":"Dominic Reinhardt, Julia Heupel, Cyril Popov, Ralf Wunderlich","doi":"10.1002/qute.202400237","DOIUrl":"10.1002/qute.202400237","url":null,"abstract":"The detection of laser-induced photo-currents in diamond is shown with about 100 fA resolution in the pico- to nanoampere range. A micro-electronic approach enables to work without using lock-in techniques. For that purpose, a commercially available and low-cost precision integrating amplifier is utilized on a home-built printed circuit board. This technique is applied to three different diamond samples with different defect concentrations. Two ultra-pure diamond samples with shallow implanted defects, predominantly nitrogen-vacancy (NV) centers and substitutional nitrogen (P1 centers), are investigated. The third sample is an electron-irradiated type Ib diamond with a much higher intrinsic defect concentration. For all samples, spatially resolved photo-current maps as well as laser power and bias voltage-dependent measurements are recorded. Furthermore, photo-currents are successfully recorded without an applied bias voltage. Finally, the technique is used to perform continuous wave photoelectric detection of magnetic resonances (PDMR) using NV centers. The presented approach paves the way for time-resolved photo-current measurements of individual defects and pulsed PDMR measurements without lock-in technology.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 12","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400237","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227430","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

Spontaneous Disentanglement of Indistinguishable Particles 无差别粒子的自发解缠

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-20 DOI: 10.1002/qute.202400248

Eyal Buks

引用次数: 0

Front Cover: Generating Microwave Signals with Enhancive Amplitudes Using Superconductor Single Flux Quantum Pulses for Controlling Quantum Bit (Adv. Quantum Technol. 8/2024) 封面：利用超导体单通量量子脉冲产生具有增强振幅的微波信号以控制量子比特（量子技术进展 8/2024）

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-13 DOI: 10.1002/qute.202470020

Hongxiang Shen, Yuxing He, Zeyu Han, Zongyuan Li, Wenhui Luo, Lan Cheng, Yanyi Luo, Bo Jing, Nobuyuki Yoshikawa

{"title":"Front Cover: Generating Microwave Signals with Enhancive Amplitudes Using Superconductor Single Flux Quantum Pulses for Controlling Quantum Bit (Adv. Quantum Technol. 8/2024)","authors":"Hongxiang Shen, Yuxing He, Zeyu Han, Zongyuan Li, Wenhui Luo, Lan Cheng, Yanyi Luo, Bo Jing, Nobuyuki Yoshikawa","doi":"10.1002/qute.202470020","DOIUrl":"https://doi.org/10.1002/qute.202470020","url":null,"abstract":"This cover image illustrates the generation of microwave waveforms for qubit control by transforming superconducting single-flux-quantum (SFQ) pulses through a filtering network. The output microwave can be modulated by managing the condition of an SFQ pulse pair. Specifically, the reverse-polarity pulse-pair (RPPP) method enables maximum output amplitude and precise control over the initial phase of the microwave. This approach facilitates on-chip qubit control in a cryogenic environment, significantly reducing thermal noise and interconnecting cables, which is crucial for large-scale quantum computing. For further details see article number 2400001 by Hongxiang Shen, Yuxing He, Nobuyuki Yoshikawa, and co-workers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 8","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202470020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141986109","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

Positional Accuracy of 3D Printed Quantum Emitter Fiber Couplers 三维打印量子发射器光纤耦合器的位置精度

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-13 DOI: 10.1002/qute.202400135

Ksenia Weber, Simon Thiele, Mario Hentschel, Alois Herkommer, Harald Giessen

{"title":"Positional Accuracy of 3D Printed Quantum Emitter Fiber Couplers","authors":"Ksenia Weber, Simon Thiele, Mario Hentschel, Alois Herkommer, Harald Giessen","doi":"10.1002/qute.202400135","DOIUrl":"10.1002/qute.202400135","url":null,"abstract":"Precise positioning of optical elements plays a key role in the performance of optical systems. While additive manufacturing techniques such as 3D printing enable the creation of entire complex micro-objectives in one step, thus rendering lens alignment unnecessary, certain applications require precise positional alignment of the printing process with respect to the substrate. For example, in order to efficiently couple quantum emitters to single-mode fibers, which is a crucial step in the development of real world quantum networks, precise alignment between the emitter, the coupling optics, and the single-mode fiber is of utmost importance. In this work, the positioning accuracy of a Photonics Professional GT (Nanoscribe GmbH) 3D printing machine is evaluated by using the integrated piezo stage to align to gold markers that is manufactured via e-beam lithography. By running a statistical analysis of 38 printing cycles, a mean positional error of only 80 nm is determined. Additionally, an entire system is 3D printed that can couple quantum emitters to optical single-mode fibers. Examining the focal spot of the 3D printed micro-optics, a positional accuracy of ≈ 1 µm in all three dimensions is found, as well as excellent quality of the focal spot.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 11","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400135","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142218948","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

Back Cover: Nonreciprocal Unconventional Photon Blockade with Kerr Magnons (Adv. Quantum Technol. 8/2024) 封底：克尔磁子的非互惠非常规光子阻滞（量子技术进展 8/2024）

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-13 DOI: 10.1002/qute.202470022

Xiao-Hong Fan, Yi-Ning Zhang, Jun-Po Yu, Ming-Yue Liu, Wen-Di He, Hai-Chao Li, Wei Xiong

引用次数: 0

Issue Information (Adv. Quantum Technol. 8/2024) 发行信息（Adv. Quantum Technol.）

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-13 DOI: 10.1002/qute.202470021

引用次数: 0

Advances in Quantum Metrology with Dielectrically Structured Single Photon Sources Based on Molecules 基于分子的介质结构单光子源在量子计量学方面的进展

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-12 DOI: 10.1002/qute.202400107

Pietro Lombardi, Hristina Georgieva, Franziska Hirt, Juergen Mony, Rocco Duquennoy, Ramin Emadi, Maria Guadalupe Aparicio, Maja Colautti, Marco López, Stefan Kück, Costanza Toninelli

{"title":"Advances in Quantum Metrology with Dielectrically Structured Single Photon Sources Based on Molecules","authors":"Pietro Lombardi, Hristina Georgieva, Franziska Hirt, Juergen Mony, Rocco Duquennoy, Ramin Emadi, Maria Guadalupe Aparicio, Maja Colautti, Marco López, Stefan Kück, Costanza Toninelli","doi":"10.1002/qute.202400107","DOIUrl":"10.1002/qute.202400107","url":null,"abstract":"In the realm of fundamental quantum science and technologies, non-classical states of light, such as single-photon Fock states, are widely studied. However, current standards and metrological procedures are not optimized for low light levels. Progress in this crucial scientific domain depends on innovative metrology approaches, utilizing reliable devices based on quantum effects. A new generation of molecule-based single-photon sources is presented, combining their integration in a polymeric micro-lens with pulsed excitation schemes, thereby realizing suitable resources in quantum radiometry. The strategy enhances the efficiency of generated single photon pulses and improves stability, providing a portable source at 784.7 nm that maintains consistent performance even through a cooling and heating cycle. The calibration of a single-photon avalanche detector is demonstrated using light sources with different photon statistics, and the advantages of the single-molecule device are discussed. A relative uncertainty on the intrinsic detection efficiency well below 1% is attained, representing a new benchmark in the field.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 10","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400107","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142218951","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

Multiparty Quantum Key Agreement Based on d $d$ -dimensional Bell States 基于 d$d$ 维贝尔态的多方量子密钥协议

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-12 DOI: 10.1002/qute.202400204

Ya-Xi Shu, Chen-Ming Bai, Wan-Li Hong, Sujuan Zhang

{"title":"Multiparty Quantum Key Agreement Based on \u0000 \u0000 d\u0000 $d$\u0000 -dimensional Bell States","authors":"Ya-Xi Shu, Chen-Ming Bai, Wan-Li Hong, Sujuan Zhang","doi":"10.1002/qute.202400204","DOIUrl":"10.1002/qute.202400204","url":null,"abstract":"In this paper, on the design process of a multiparty quantum key agreement protocol within a <math>\u0000 <semantics>\u0000 <mi>d</mi>\u0000 <annotation>$d$</annotation>\u0000 </semantics></math>-dimensional Hilbert space is elaborated upon. A circular-type multiparty quantum key agreement protocol based on the generalized Bell state is introduced. To enhance security against external attacks, <math>\u0000 <semantics>\u0000 <mi>n</mi>\u0000 <annotation>$n$</annotation>\u0000 </semantics></math> decoy states into the transmission process is incorporated. Transmission sequences of the generalized Bell state and decoy states are passed between participants. The participants then encode their secret information into the corresponding particles. Ultimately, all participants are able to derive the same key. In addition, a combination of <math>\u0000 <semantics>\u0000 <mi>d</mi>\u0000 <annotation>$d$</annotation>\u0000 </semantics></math>-dimensional Pauli operators is utilized, making the proposed protocol feasible with current technology. Analysis and protection against intercept-resend attack, entangle-measure attack and dishonest participants attacks, demonstrating the feasibility of the protocol in a <math>\u0000 <semantics>\u0000 <mi>d</mi>\u0000 <annotation>$d$</annotation>\u0000 </semantics></math>-dimensional Hilbert space. The protocol has certain advantages over other protocols in terms of a comprehensive consideration of security and efficiency.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 11","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142218955","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

Superconducting Properties of Layered Chalocogenides 1 T $1T$ -RhSeTe

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-12 DOI: 10.1002/qute.202400175

Chandan Patra, Tarushi Agarwal, Arushi, Poulami Manna, Neeraj Bhatt, Ravi Shankar Singh, Ravi Prakash Singh

引用次数: 0

Enhancement of Nonreciprocal Entanglement and Transmission via Phase-Dependent Unidirectional Coupling 通过相位相关单向耦合增强非互惠纠缠和传输

IF 4.4

Advanced quantum technologies Pub Date : 2024-08-12 DOI: 10.1002/qute.202400224

Nan Wang, Ting-Ting Dong, Shi-Yan Li, Ning Yuan, Lin Yu, Ai-Dong Zhu

引用次数: 0