Michael Smidman, Oliver Stockert, Emilian M. Nica, Yang Liu, Huiqiu Yuan, Qimiao Si, Frank Steglich
{"title":"Colloquium : Unconventional fully gapped superconductivity in the heavy-fermion metal CeCu2Si2","authors":"Michael Smidman, Oliver Stockert, Emilian M. Nica, Yang Liu, Huiqiu Yuan, Qimiao Si, Frank Steglich","doi":"10.1103/revmodphys.95.031002","DOIUrl":"https://doi.org/10.1103/revmodphys.95.031002","url":null,"abstract":"The heavy-fermion compound CeCu${}_{2}$Si${}_{2}$ has long been known to be an unconventional superconductor with $d$-wave symmetry. Ordinarily, this would imply that the gap function has nodes on the Fermi surface. This Colloquium explains that recent experiments have shown that the gap is nonzero everywhere, if small where a single-band wave gap would vanish. The Colloquium discusses theoretical scenarios to explain these observations, as well as the implications for other unconventional superconductors.","PeriodicalId":21172,"journal":{"name":"Reviews of Modern Physics","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135353384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Attila Szilva, Yaroslav Kvashnin, Evgeny A. Stepanov, Lars Nordström, Olle Eriksson, Alexander I. Lichtenstein, Mikhail I. Katsnelson
{"title":"Quantitative theory of magnetic interactions in solids","authors":"Attila Szilva, Yaroslav Kvashnin, Evgeny A. Stepanov, Lars Nordström, Olle Eriksson, Alexander I. Lichtenstein, Mikhail I. Katsnelson","doi":"10.1103/revmodphys.95.035004","DOIUrl":"https://doi.org/10.1103/revmodphys.95.035004","url":null,"abstract":"","PeriodicalId":21172,"journal":{"name":"Reviews of Modern Physics","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135936885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
O. Hurricane, P. Patel, R. Betti, D. Froula, S. Regan, S. Slutz, M. Gomez, M. A. Sweeney
{"title":"Physics principles of inertial confinement fusion and U.S. program overview","authors":"O. Hurricane, P. Patel, R. Betti, D. Froula, S. Regan, S. Slutz, M. Gomez, M. A. Sweeney","doi":"10.1103/revmodphys.95.025005","DOIUrl":"https://doi.org/10.1103/revmodphys.95.025005","url":null,"abstract":"","PeriodicalId":21172,"journal":{"name":"Reviews of Modern Physics","volume":" ","pages":""},"PeriodicalIF":44.1,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45678297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
M. Zaletel, M. Lukin, C. Monroe, C. Nayak, F. Wilczek, N. Yao
{"title":"Colloquium\u0000: Quantum and classical discrete time crystals","authors":"M. Zaletel, M. Lukin, C. Monroe, C. Nayak, F. Wilczek, N. Yao","doi":"10.1103/RevModPhys.95.031001","DOIUrl":"https://doi.org/10.1103/RevModPhys.95.031001","url":null,"abstract":"The spontaneous breaking of time translation symmetry has led to the discovery of a new phase of matter - the discrete time crystal. Discrete time crystals exhibit rigid subharmonic oscillations, which result from a combination of many-body interactions, collective synchronization, and ergodicity breaking. This Colloquium reviews recent theoretical and experimental advances in the study of quantum and classical discrete time crystals. We focus on the breaking of ergodicity as the key to discrete time crystals and the delaying of ergodicity as the source of numerous phenomena that share many of the properties of discrete time crystals, including the AC Josephson effect, coupled map lattices, and Faraday waves. Theoretically, there exists a diverse array of strategies to stabilize time crystalline order in both closed and open systems, ranging from localization and prethermalization to dissipation and error correction. Experimentally, many-body quantum simulators provide a natural platform for investigating signatures of time crystalline order; recent work utilizing trapped ions, solid-state spin systems, and superconducting qubits will be reviewed. Finally, this Colloquium concludes by describing outstanding challenges in the field and a vision for new directions on both the experimental and theoretical fronts.","PeriodicalId":21172,"journal":{"name":"Reviews of Modern Physics","volume":" ","pages":""},"PeriodicalIF":44.1,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42662129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}