장소 | https://bit.ly/3ndIiJn |
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일시 | October 15, 5:00pm |
연사 | Dr. Samuli Autti |
제목 : Time crystals, quasicrystals, and time crystal dynamics in the superfluid universe
연사 : Dr. Samuli Autti
일시 : 5:00pm, October 15, 2020
줌(link) : https://bit.ly/3ndIiJn
초록 : Time crystals are a novel phase of condensed matter, characterised by continuous, repeating motion in their quantum ground state. In our experiments, we explore this new phase using magnetic quasiparticles in the superfluid universe of 3He: We observe the formation of a quantum time quasicrystal and its transformation to a superfluid time crystal – a time supersolid [1]. We then bring two superfluid time crystals to touch each other, and observe oscillating particle exchange between the time crystals – the AC Josephson effect [2]. These ground-breaking experiments substantiate the theoretical excursion started by F. Wilczek, and provide novel, magnetic building block for quantum devices and quantum information processing – potentially even at room temperature [3].
[1] S. Autti et al, PRL 120 (2018)
[2] S. Autti et al, Nature Materials (2020), https://doi.org/10.1038/s41563-020-0780-y
[3] Kreil, A. J. E. et al. arXiv:1911.07802 (2019)
고맙습니다.
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공지 | 2019/09/18 - 12/5 | Seminar Room #1323 | Prof. David Schuster and etc. | Fall 2019: Physics Seminar Serises |
공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
300 | October 15, 2020 (Thursday | CAPP Seminar Room #C303, Creation Hall (3F), KAIST Munji Campus | Prof. Gil-Ho Lee (POSTECH) |
Graphene-based Josephson junction microwave bolometer
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299 | Oct. 15, 4pm | (https://kaist.zoom.us/j/93997220310) | 정현석 교수님 (SNU) | Towards resource-efficient and fault-tolerant quantum computation with nonclassical light |
298 | Oct 9 (Fri), 09:00 AM | https://kaist.zoom.us/j/85161896513?pwd=U3pwWFFZaWVRamxDZUR5REhNeVk0UT09 | Prof. Tim Hsieh (Perimeter Institute) |
Quantum Many-Body Simulation
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» | October 15, 5:00pm | https://bit.ly/3ndIiJn | Dr. Samuli Autti |
Time crystals, quasicrystals, and time crystal dynamics in the superfluid universe
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296 | Sep. 24(Thu), 09:00~, Sep. 24(Thu), 16:00 ~ | Zoom Video | Akash V. Dixit (University of Chicago), Dr. Boris Ivanov (Novosibirsk State Technical University) |
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295 | Sep.28. 5:30 pm | Zoom webinar | Burkard Hillebrands (TU Kaiserslautern, Germany) |
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294 | Sep. 22nd 9:30 AM | Zoom webinar | Prof. Xu Yi (Univ. of Virginia, USA) |
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293 | Sep. 11(Fri), 14:00~ | zoom | 이관형교수/SNU, 이상윤교수/GIST |
SRC Seminar
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292 | Sep. 14(Mon) 17:30~ | Zoom webinar | Teruo Ono (Kyoto U. Japan) |
KAIST Global Forum for Spin and Beyond (Third Forum)
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291 | Aug, 25(Tue), 20:00~ | Zoom webinar | Mark D. Stiles (NIST, USA) |
KAIST Global Forum for Spin and Beyond (Second Forum)
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290 | Aug. 17(Mon), 20:00~ | Zoom webinar | Mark D. Stiles (NIST, USA) |
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289 | July 2, 2020 (Thursday) | Zoom Video Conference Seminar | Dr. Emmanuel Flurin (CEA Saclay) |
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288 | February 20 (Thu), 4:00 PM | #1323, E6-2 | Seunghyun Khim |
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287 | February 13th (Thur.), 16:30 PM | E6-6, #119 | Dr. Seyoon Kim(University of Wisconsin-Madison) |
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286 | February 12(Web.) | E6-2, #5318 | Prof. Kunio Kaneta |
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285 | January 17 (Fri), 4:00 PM | #1323, E6-2 | Hiroki Ikegami |
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284 | Dec 27 (Fri), 3:00 PM | #5318, E6-2 | Han Gyeol Suh |
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283 | December 27(Fri.), 15:00 | E6-2,#5318 | Han Gyeol Suh |
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282 | December 18 (Tue.), 4:00 PM | #1323, E6-2 | Prof. Shin-ichi Uchida |
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281 | December 13 (Fri.), 1:30-4:30 PM | #1323, E6-2 |
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