{"title":"Uralter Gierschlund","authors":"","doi":"10.1002/piuz.202470207","DOIUrl":"https://doi.org/10.1002/piuz.202470207","url":null,"abstract":"Mit Hilfe des James‐Webb‐Weltraumteleskops konnte nun das älteste Schwarze Loch gefunden werden. Seine hohe Masse wirft Fragen auf.","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":" 833","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091944","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":"Banditen, Breitengrade und polarisiertes Licht","authors":"A. Loos","doi":"10.1002/piuz.202470214","DOIUrl":"https://doi.org/10.1002/piuz.202470214","url":null,"abstract":"Wissenschaftliche Arbeit wird oft behindert, selten aber durch solche Abenteuer wie im Leben des Gesuchten.","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":"37 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140086407","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":"KI und Physik: mit menschlicher Expertise vielversprechend","authors":"F. Marquardt","doi":"10.1002/piuz.202470202","DOIUrl":"https://doi.org/10.1002/piuz.202470202","url":null,"abstract":"","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":"47 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140087611","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}
Wouter Jolie, Jeison Fischer, Thomas Michely, Theo Costi
{"title":"Anderson‐Modell korrelierter Elektronen bestätigt","authors":"Wouter Jolie, Jeison Fischer, Thomas Michely, Theo Costi","doi":"10.1002/piuz.202470204","DOIUrl":"https://doi.org/10.1002/piuz.202470204","url":null,"abstract":"Das Anderson‐Modell (Anderson Impurity Model) wird in der Festkörperphysik zur Beschreibung von korrelierten, also stark wechselwirkenden Elektronen genutzt. Es besteht aus lokalen Energieniveaus, die aufgrund der Wechselwirkung mit delokalisierten Leitungselektronen eine nach Yun Kondo benannte Kondo‐Resonanz hervorrufen. Nun ist es erstmals gelungen, diese Energieniveaus zusammen mit der Kondo‐Resonanz präzise zu vermessen, wodurch eine quantitative Übereinstimmung zwischen Theorie und Experiment demonstriert wurde.","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":"120 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140090340","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":"Neue „Magdeburger Weingläser“","authors":"Lutz Kasper, Patrik Vogt","doi":"10.1002/piuz.202470210","DOIUrl":"https://doi.org/10.1002/piuz.202470210","url":null,"abstract":"Das Experiment von Otto von Guericke zum Vakuum wurde unter dem Namen „Magdeburger Halbkugeln“ weltberühmt und findet sich heute in fast jedem Schulbuch. Wir rekonstruieren diesen Schauversuch mit zwei Weingläsern.","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":"102 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140090052","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":"Inhalt: Physik in unserer Zeit 2/2024","authors":"","doi":"10.1002/piuz.202470203","DOIUrl":"https://doi.org/10.1002/piuz.202470203","url":null,"abstract":"","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":"118 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140090380","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":"Unbestimmt und relativ? Das Weltbild der modernen Physik","authors":"C. Beisbart","doi":"10.1002/piuz.202470212","DOIUrl":"https://doi.org/10.1002/piuz.202470212","url":null,"abstract":"","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":"9 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091186","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}
Alexander Gößling, Sebastian Becker‐Genschow, Jochen Kuhn, T. Wilhelm
{"title":"Aufnahme und Auswertung von Spektren mit Vernier Spectral Analysis","authors":"Alexander Gößling, Sebastian Becker‐Genschow, Jochen Kuhn, T. Wilhelm","doi":"10.1002/piuz.202470211","DOIUrl":"https://doi.org/10.1002/piuz.202470211","url":null,"abstract":"Analysen von Absorptions‐ und Emissionsspektren zählen zu den grundlegenden Versuchen in der Atomphysik in Schule und Hochschule. Die App Vernier Spectral Analysis steuert ein kompaktes Spektrometer und erlaubt eine detaillierte Darstellung und Auswertung der Spektren.","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":" 1166","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091996","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":"Metalle Ex‐Machina","authors":"Dierk Raabe","doi":"10.1002/piuz.202301693","DOIUrl":"https://doi.org/10.1002/piuz.202301693","url":null,"abstract":"Künstliche Intelligenz (KI) kann zur Entwicklung von Materialien unter Einbeziehung ihrer Herstellung, Verarbeitung, inneren Strukturdefekte und chemischen Komplexität eingesetzt werden. Heute muss sie aber meist noch mit spärlichen Trainingsdaten zurechtkommen. Hybrid‐Methoden können diese Datenbasis in Verbindung mit aktiv geleiteten Experimenten verbessern. Sie schließen thermodynamische und kinetische Datenbanken, kombinatorische Hochdurchsatzexperimente, Ab‐initio‐Daten und automatisierte Sprachverarbeitung ein. Solche KI‐Methoden für das Materialdesign können auch mit physikalischen Modellen kombiniert werden. Bei allen Ansätzen ist die Identifizierung geeigneter Deskriptoren wichtig, die das gesuchte Material zu finden helfen. Aktuell ist die Verbesserung der Kausalitätsermittlung bei der Materialentwicklung mittels KI ein wichtiges Forschungsfeld. Dies gilt für die effizientere Entdeckung potenziell verheißungsvoller Datenausreißer sowie die Vorhersage außerhalb der Trainingsbereiche der KI.","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140084816","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":"Vorschau auf Heft 3/2024","authors":"","doi":"10.1002/piuz.202470217","DOIUrl":"https://doi.org/10.1002/piuz.202470217","url":null,"abstract":"","PeriodicalId":509983,"journal":{"name":"Physik in unserer Zeit","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091811","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}
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