Quantum Technologies and Quantum Information Science V最新文献

{"title":"Front Matter: Volume 11167","authors":"","doi":"10.1117/12.2554467","DOIUrl":"https://doi.org/10.1117/12.2554467","url":null,"abstract":"","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121982218","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}

{"title":"Free-space photonic quantum networks with distant atomic arrays (Conference Presentation)","authors":"P. Guimond, A. Grankin, D. Vasilyev, B. Vermersch, P. Zoller","doi":"10.1117/12.2535496","DOIUrl":"https://doi.org/10.1117/12.2535496","url":null,"abstract":"","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127605127","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}

{"title":"Quantum photonics for secure quantum and classical computing (Conference Presentation)","authors":"P. Walther","doi":"10.1117/12.2534521","DOIUrl":"https://doi.org/10.1117/12.2534521","url":null,"abstract":"","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132039410","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}

{"title":"Reconfigurable entangled photon source (Conference Presentation)","authors":"W. Grice, M. Beck, D. Earl, D. Mulkey, J. Schaake","doi":"10.1117/12.2536266","DOIUrl":"https://doi.org/10.1117/12.2536266","url":null,"abstract":"","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133566021","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}

{"title":"Large-scale quantum photonic processors: photonics for AI and AI for photonics (Conference Presentation)","authors":"J. Carolan","doi":"10.1117/12.2535644","DOIUrl":"https://doi.org/10.1117/12.2535644","url":null,"abstract":"","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132320757","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}

{"title":"Towards Quantum Laser Links between nano-satellites in Low Earth Orbit (Conference Presentation)","authors":"A. Lambert","doi":"10.1117/12.2538199","DOIUrl":"https://doi.org/10.1117/12.2538199","url":null,"abstract":"Designing a laser communications payload integral to a nano-satellite, capable of fine pointing, is a difficult task. Integrating this with a quantum key distribution payload for inter-satellite secure communication adds significant complexity, as does ground based communication with the moving objects in low Earth orbit. The advantages of low path length, secure, global communication make this an opportunity not to be missed. \u0000\u0000We report on developments of such a system. Beginning with a satellite demonstrator with a Pointing, Acquisition-and Tracking system that involves fine precision star-tracker, plasma and aerodynamic force interactions for steering, and an inter-satellite laser link demonstration on orbit using LED beacon for acquisition, and laser for communications link closure. Combining design studies for a nano-satellite quantum payload for transferring entangled photon-pairs between the satellites at long-range in Low Earth Orbit, and incorporating ground to space and space to ground laser communications, are described in the context of quantum optical ground station efforts within Australia.","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131582734","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}

{"title":"CMOS integrated hyperpolarized NMR using NV centers in diamond (Conference Presentation)","authors":"J. Anders, I. Schwartz, K. Lips, M. Plenio, F. Jelezko","doi":"10.1117/12.2535914","DOIUrl":"https://doi.org/10.1117/12.2535914","url":null,"abstract":"Thanks to their unmatched specificity, nuclear magnetic resonance (NMR) and electron spin resonance (ESR) spectroscopy – jointly referred to as spin-based analytics – are tools of major importance in biology, chemistry, medicine and physics because they allow for the use of a spin (nuclear or electron) as an extremely sensitive, nanoscopic quantum probe of its electronic and magnetic environment inside a molecule. However, their main limitations are high equipment complexity and cost as well as a relatively poor sensitivity due to the very small thermal polarisation of the spin ensembles at room temperature. This poor sensitivity in turn severely compromises the required measurement time, the achievable signal-to-noise ratio and the minimum sample size.\u0000In the proposed talk, we will first introduce the so-called ESR-on-a-chip approach as a new tool in ESR spectroscopy that allows for a CMOS integrated manipulation and detection of electron spins up to very high frequencies in the hundreds of Gigahertz range. We will then discuss the use of nitrogen vacancy (NV) centers in diamond as a potential tool for hyperpolarizing a nuclear spin ensemble at ambient conditions using a laser and the abovementioned ESR-on-a-chip sensors as a compact and cheap, yet high-performance microwave source. Finally, we will introduce the NMR-on-a-chip approach, which integrates an entire NMR spectrometer into a tiny CMOS application specific integrated circuit (ASIC), as a very promising path towards miniaturizing the entire NMR spectrometer including the NV-based hyperpolarization into a compact portable system, which can extend the application range of NMR into entirely new areas including personalized medicine.","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114260569","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}

{"title":"Semiconductor sources of pure quantum light (Conference Presentation)","authors":"P. Senellart","doi":"10.1117/12.2536995","DOIUrl":"https://doi.org/10.1117/12.2536995","url":null,"abstract":"","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"7 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113990059","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}

{"title":"Stratospheric QKD: feasibility analysis and free-space optics system concept","authors":"F. Moll, T. Botter, C. Marquardt, David Pusey, A. Shrestha, A. Reeves, Kevin Jaksch, K. Günthner, Oemer Bayraktar, Christian Mueller-Hirschkorn, Alberto Gallardo, Dionisio Diaz Gonzalez, W. Rosenfeld, Peter Freiwang, G. Leuchs, H. Weinfurter","doi":"10.1117/12.2539076","DOIUrl":"https://doi.org/10.1117/12.2539076","url":null,"abstract":"Quantum key distribution (QKD) is one of the most mature quantum technologies and can provide quantum-safe security in future communication networks. Since QKD in fiber is limited to a range of few hundred kilometers, one approach to bridge continental scale distances may be the use of high altitude pseudo satellites (HAPS) as mobile trusted nodes in the stratosphere. In parallel, free-space laser communication for high rate data transmission has been a subject of research and development for several decades and its commercialization is progressing rapidly. Important synergies exist between classical free-space communication and QKD systems since the quantum states are often implemented using the same degrees of freedom such as polarization or field amplitude and phase. These synergies can be used to benefit from the progress in classical free-space laser communication in QKD applications. In this paper, the use case of QKD in a stratospheric environment is described wherein HAPS may serve as relay station of secret keys and encrypted data. The mission scenario and HAPS capabilities are analyzed to derive special requirements on the stratospheric laser terminal, the link geometry and the ground segment with respect to a feasibility demonstration. To obtain a flexible and compatible system, discrete variable and continuous variable QKD protocols are considered to be implemented side by side in the HAPS payload. Depending on the system parameters, it can be beneficial to use the one or the other kind of protocol. Thus, a direct comparison of both in one and the same system is of scientific interest. Each of the protocols has particular requirements on coupling efficiency and implementation. Link budget calculations are performed to analyze possible distances, key rates and data transmission rates for the different schemes. In case of the QKD system, the mean coupling efficiency is of main interest, i.e. signal fluctuations arising from atmospheric turbulence must be taken into account in the security proof, but the buffered key generation relaxes real-time requirements. This is different to classical communications, where the corresponding fading loss must be assessed. A system architecture is presented that comprises the optical aircraft terminal, the optical ground terminal and the most important subsystems that enable implementation of the considered QKD protocols. The aircraft terminal is interfaced with the dedicated quantum transmitter module (Alice) and the ground station with the dedicated quantum receiver module (Bob). The optical interfaces are SMF couplings which put high requirements on the receiving optics, in particular the need for wave-front correction with adaptive optics. The findings of the system study are reviewed and necessary next steps pointed out.","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125434882","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}

{"title":"Object identification and tracking by quantum radar","authors":"K. Durak, N. Jam, Cagri Dindar","doi":"10.1117/12.2550479","DOIUrl":"https://doi.org/10.1117/12.2550479","url":null,"abstract":"Quantum Radar is a promising technology that could have a strong impact on the civilian and military realms. In this study we introduce a new concept design for implementing a Quantum Radar, based on the time and polarization correlations of the entangled photons for detection and identification and tracking of high-speed targets. The design is focused on extracting high resolution details of the target with precision timing of entangled photons that provides important operational capabilities like distinguishing a target from a decoy. The quantum entanglement properties guarantee the legitimacy of the photons captured by the search telescope. Time correlations of the photon detection events can be extracted via cross-correlation operation between two sets of photon detection time-tags for the entangled photons. The fact that the wavelengths of the entangled photons can be tuned also makes the Quantum Radar concept an enticing candidate for tracking stealth objects. We present the proof-of-principle test results of the Quantum Radar and discuss the technical challenges and limitations of the design.","PeriodicalId":189492,"journal":{"name":"Quantum Technologies and Quantum Information Science V","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127306266","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}