{"title":"球体量子点作为单光子发射体集成量子密钥分配系统中的相对论效应和量子光物质相互作用诱导的安全漏洞","authors":"Moses Udoisoh, Okpara Nathaniel","doi":"10.1007/s13538-025-01828-4","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the impact of relativistic effects and light-matter interactions on quantum key distribution (QKD) security in satellite-based quantum communication systems. We use a spheroidal quantum dot (SQD) as a single-photon emitter integrated within a photonic waveguide in a relativistic quantum communication system, where both sender and receiver are in motion at velocities approaching a significant fraction of the speed of light. Our analysis employs a fully relativistic treatment of the SQD’s electronic structure, incorporating spin–orbit coupling. We examine the quantum bit error rate (QBER) under relativistic motion and various eavesdropping attack scenarios, including intercept-resend, cloning, and measurement device compromise attacks. Our findings indicate that relativistic effects introduce errors into the QKD system, modifying the polarization states of the transmitted photons. Our analysis reveals that relativistic effects induce a 12% decrease in secure key rate (SKR) at <i>v</i> /<i>c</i> = 0.5. Adversarial attacks further exacerbate SKR vulnerability, with the intercept-resend attack reducing SKR by 75%, the cloning attack by 40%, and the man-in-the-middle (MitM) attack by 95% at <i>v</i>/<i>c</i> = 0.8. Our simulations demonstrate that relativistic corrections and advanced cryptographic techniques are essential to ensure secure key transmission in satellite-based QKD networks.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Relativistic Effects and Quantum Light-Matter Interaction-induced Security Vulnerabilities in Integrated Quantum Key Distribution System using Spheroidal Quantum Dots as Single-Photon Emitters\",\"authors\":\"Moses Udoisoh, Okpara Nathaniel\",\"doi\":\"10.1007/s13538-025-01828-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study investigates the impact of relativistic effects and light-matter interactions on quantum key distribution (QKD) security in satellite-based quantum communication systems. We use a spheroidal quantum dot (SQD) as a single-photon emitter integrated within a photonic waveguide in a relativistic quantum communication system, where both sender and receiver are in motion at velocities approaching a significant fraction of the speed of light. Our analysis employs a fully relativistic treatment of the SQD’s electronic structure, incorporating spin–orbit coupling. We examine the quantum bit error rate (QBER) under relativistic motion and various eavesdropping attack scenarios, including intercept-resend, cloning, and measurement device compromise attacks. Our findings indicate that relativistic effects introduce errors into the QKD system, modifying the polarization states of the transmitted photons. Our analysis reveals that relativistic effects induce a 12% decrease in secure key rate (SKR) at <i>v</i> /<i>c</i> = 0.5. Adversarial attacks further exacerbate SKR vulnerability, with the intercept-resend attack reducing SKR by 75%, the cloning attack by 40%, and the man-in-the-middle (MitM) attack by 95% at <i>v</i>/<i>c</i> = 0.8. Our simulations demonstrate that relativistic corrections and advanced cryptographic techniques are essential to ensure secure key transmission in satellite-based QKD networks.</p></div>\",\"PeriodicalId\":499,\"journal\":{\"name\":\"Brazilian Journal of Physics\",\"volume\":\"55 5\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2025-07-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brazilian Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13538-025-01828-4\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s13538-025-01828-4","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Relativistic Effects and Quantum Light-Matter Interaction-induced Security Vulnerabilities in Integrated Quantum Key Distribution System using Spheroidal Quantum Dots as Single-Photon Emitters
This study investigates the impact of relativistic effects and light-matter interactions on quantum key distribution (QKD) security in satellite-based quantum communication systems. We use a spheroidal quantum dot (SQD) as a single-photon emitter integrated within a photonic waveguide in a relativistic quantum communication system, where both sender and receiver are in motion at velocities approaching a significant fraction of the speed of light. Our analysis employs a fully relativistic treatment of the SQD’s electronic structure, incorporating spin–orbit coupling. We examine the quantum bit error rate (QBER) under relativistic motion and various eavesdropping attack scenarios, including intercept-resend, cloning, and measurement device compromise attacks. Our findings indicate that relativistic effects introduce errors into the QKD system, modifying the polarization states of the transmitted photons. Our analysis reveals that relativistic effects induce a 12% decrease in secure key rate (SKR) at v /c = 0.5. Adversarial attacks further exacerbate SKR vulnerability, with the intercept-resend attack reducing SKR by 75%, the cloning attack by 40%, and the man-in-the-middle (MitM) attack by 95% at v/c = 0.8. Our simulations demonstrate that relativistic corrections and advanced cryptographic techniques are essential to ensure secure key transmission in satellite-based QKD networks.
期刊介绍:
The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.