Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 송석호 | - |
dc.date.accessioned | 2022-04-18T06:02:05Z | - |
dc.date.available | 2022-04-18T06:02:05Z | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | COMMUNICATIONS PHYSICS, v. 3, no. 1, article no. 140 | en_US |
dc.identifier.issn | 2399-3650 | - |
dc.identifier.uri | https://www.nature.com/articles/s42005-020-00409-y | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/170087 | - |
dc.description.abstract | Recent study on topological operations around an exceptional point singularity has shown remarkably robust chiral processes that potentially create time-asymmetric or nonreciprocal systems and devices. Nevertheless, direct observation of the entire dynamics in the courses of the topological operations has not been revealed in experiments thus far. Here, we report a comprehensive experimental study on fully time-resolved dynamic-state evolution passages during encircling-an-exceptional-point operations. Using dynamically tunable electrical oscillators, we create a self-intersecting eigenvalue topology with an unprecedented accuracy and experimentally confirm that the time-asymmetric breakdown of the standard adiabaticity is indeed unavoidable when the system encircles an exceptional point in the canonical adiabatic limit. We further discuss the impact of parasitic noises on the time-asymmetric mode-transfer performance and subsequent considerations for practical design requirements. | en_US |
dc.description.sponsorship | This research was supported in part by the Global Frontier Program of the National Research Foundation (NRF) of Korea, which is funded by the Ministry of Science, ICT and Future Planning (NRF-2014M3A6B3063708), the Basic Science Research Program (NRF-2015R1A2A2A01007553), the Presidential Post-Doc Fellowship Program (NRF-2017R1A6A3A04011896), and the Leader Researcher Program (NRF-2019R1A3B2068083). | en_US |
dc.language.iso | en | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.subject | SYMMETRY | en_US |
dc.title | Direct observation of time-asymmetric breakdown of the standard adiabaticity around an exceptional point | en_US |
dc.type | Article | en_US |
dc.relation.no | 140 | - |
dc.relation.volume | 3 | - |
dc.identifier.doi | 10.1038/s42005-020-00409-y | - |
dc.relation.page | 1-7 | - |
dc.relation.journal | COMMUNICATIONS PHYSICS | - |
dc.contributor.googleauthor | Choi, Youngsun | - |
dc.contributor.googleauthor | Yoon, Jae Woong | - |
dc.contributor.googleauthor | Hong, Jong Kyun | - |
dc.contributor.googleauthor | Ryu, Yeonghwa | - |
dc.contributor.googleauthor | Song, Seok Ho | - |
dc.relation.code | 2020053185 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF PHYSICS | - |
dc.identifier.pid | shsong | - |
dc.identifier.orcid | https://orcid.org/0000-0002-1777-6169 | - |
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