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Flexible reconfigurable entanglement-based quantum key distribution network 基于纠缠的柔性可重构量子密钥分配网络
3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-12 DOI: 10.1140/epjs/s11734-023-00980-9
Till Dolejsky, Erik Fitzke, Lucas Bialowons, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther
{"title":"Flexible reconfigurable entanglement-based quantum key distribution network","authors":"Till Dolejsky, Erik Fitzke, Lucas Bialowons, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther","doi":"10.1140/epjs/s11734-023-00980-9","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00980-9","url":null,"abstract":"Abstract Recently, we implemented a basic star-shaped entanglement-based quantum key distribution network without trusted nodes. It enables simultaneous pairwise exchange of quantum keys between multiple users. In this paper, we demonstrate its flexibility by focusing on several aspects. We show continuous system operation over a partially deployed 100 km fiber link for multiple days as well as dynamic reconfiguration of the communication partners. The photon pair source enables type-II or type-0 photon pair generation by SPDC as well as various demultiplexing strategies and repetition rates.","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135826675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Universal dynamics and non-thermal fixed points in quantum fluids far from equilibrium 远离平衡的量子流体中的普遍动力学和非热不动点
3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-12 DOI: 10.1140/epjs/s11734-023-00974-7
Aleksandr N. Mikheev, Ido Siovitz, Thomas Gasenzer
{"title":"Universal dynamics and non-thermal fixed points in quantum fluids far from equilibrium","authors":"Aleksandr N. Mikheev, Ido Siovitz, Thomas Gasenzer","doi":"10.1140/epjs/s11734-023-00974-7","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00974-7","url":null,"abstract":"Abstract Closed quantum systems far from thermal equilibrium can show universal dynamics near attractor solutions, known as non-thermal fixed points, generically in the form of scaling behaviour in space and time. A systematic classification and comprehensive understanding of such scaling solutions are tasks of future developments in non-equilibrium quantum many-body theory. In this tutorial review, we outline several analytical approaches to non-thermal fixed points and summarise corresponding numerical and experimental results. The analytic methods include a non-perturbative kinetic theory derived within the two-particle irreducible effective action formalism, as well as a low-energy effective field theory framework. As one of the driving forces of this research field are numerical simulations, we summarise the main results of exemplary cases of universal dynamics in ultracold Bose gases. This encompasses quantum vortex ensembles in turbulent superfluids as well as recently observed real-time instanton solutions in one-dimensional spinor condensates.","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135826230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Steered molecular dynamics simulation of force triggering the integrin αIIbβ3 extension via its ligand 通过配体触发整合素αIIbβ3延伸的定向分子动力学模拟
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-06 DOI: 10.1140/epjs/s11734-023-00965-8
Kang Wang, Zhenhai Li
{"title":"Steered molecular dynamics simulation of force triggering the integrin αIIbβ3 extension via its ligand","authors":"Kang Wang, Zhenhai Li","doi":"10.1140/epjs/s11734-023-00965-8","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00965-8","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47816415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
t is not time: reality, causality, and the arrow of events in quantum theory t不是时间：现实、因果关系和量子理论中的事件之箭
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-06 DOI: 10.1140/epjs/s11734-023-00979-2
A. Plotnitsky
{"title":"t is not time: reality, causality, and the arrow of events in quantum theory","authors":"A. Plotnitsky","doi":"10.1140/epjs/s11734-023-00979-2","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00979-2","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48787646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Entanglement analysis of photoinduced $$eta$$-pairing states 光诱导$$eta$$ -配对态的纠缠分析
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-04 DOI: 10.1140/epjs/s11734-023-00975-6
S. Ejima, F. Lange, H. Fehske
{"title":"Entanglement analysis of photoinduced $$eta$$-pairing states","authors":"S. Ejima, F. Lange, H. Fehske","doi":"10.1140/epjs/s11734-023-00975-6","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00975-6","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43813423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling and analysis of an implicit fractional order differential equation with multiple first-order fractional derivatives and non-local boundary conditions 具有多个一阶分数阶导数和非局部边界条件的隐式分数阶微分方程的建模与分析
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-04 DOI: 10.1140/epjs/s11734-023-00961-y
G. Rahman, J. Gómez-Aguilar, D. Ahmad
{"title":"Modeling and analysis of an implicit fractional order differential equation with multiple first-order fractional derivatives and non-local boundary conditions","authors":"G. Rahman, J. Gómez-Aguilar, D. Ahmad","doi":"10.1140/epjs/s11734-023-00961-y","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00961-y","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49452236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
On stability issues of the HEOM method HEOM法的稳定性问题
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-04 DOI: 10.1140/epjs/s11734-023-00972-9
Malte Krug, Jürgen Stockburger
{"title":"On stability issues of the HEOM method","authors":"Malte Krug, Jürgen Stockburger","doi":"10.1140/epjs/s11734-023-00972-9","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00972-9","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46599333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum frames of reference and the relational flow of time 量子参照系和时间流动的关系
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-04 DOI: 10.1140/epjs/s11734-023-00973-8
Michael Suleymanov, Eliahu Cohen
{"title":"Quantum frames of reference and the relational flow of time","authors":"Michael Suleymanov, Eliahu Cohen","doi":"10.1140/epjs/s11734-023-00973-8","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00973-8","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48852476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy cascade in a far-from-equilibrium inhomogeneous trapped Bose gas obtained by power spectrum analysis 功率谱分析得到非平衡非均匀困波色气体中的能量级联
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-04 DOI: 10.1140/epjs/s11734-023-00983-6
Franklin J. Vivanco, Amilson R. Fritsch, A. D. García-Orozco, M. A. Moreno-Armijos, Gustavo D. Telles, Pedro E. S. Tavares, V. Bagnato
{"title":"Energy cascade in a far-from-equilibrium inhomogeneous trapped Bose gas obtained by power spectrum analysis","authors":"Franklin J. Vivanco, Amilson R. Fritsch, A. D. García-Orozco, M. A. Moreno-Armijos, Gustavo D. Telles, Pedro E. S. Tavares, V. Bagnato","doi":"10.1140/epjs/s11734-023-00983-6","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00983-6","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42163510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Entropy generation on MHD flow of second-grade hybrid nanofluid flow over a converging/diverging channel: an application in hyperthermia therapeutic aspects 会聚/发散通道上二级混合纳米流体MHD流动的熵产生：在热疗方面的应用
IF 2.8 3区 物理与天体物理
European Physical Journal-special Topics Pub Date : 2023-09-01 DOI: 10.1140/epjs/s11734-023-00947-w
I. Sakthi, Raja Das, P. B. A. Reddy
{"title":"Entropy generation on MHD flow of second-grade hybrid nanofluid flow over a converging/diverging channel: an application in hyperthermia therapeutic aspects","authors":"I. Sakthi, Raja Das, P. B. A. Reddy","doi":"10.1140/epjs/s11734-023-00947-w","DOIUrl":"https://doi.org/10.1140/epjs/s11734-023-00947-w","url":null,"abstract":"","PeriodicalId":12221,"journal":{"name":"European Physical Journal-special Topics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43944721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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