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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번호 | 일시 | 장소 | 연사 | 제목 |
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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 |
200 | Nov. 22th (Thur), 15:00 | E6 Room(#1323) | Prof. Suprijadi Haryono |
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199 | November 21 (Wed.), 15:00 PM | #1323, E6-2 | Prof. Seongshik Oh |
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198 | November 8 (Thu.), 16:00 PM | #1323, E6-2 | 이종완 박사 |
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197 | Nov. 9 (Fri.), 04:00 PM | E6-2. 1st fl. #1323 | Dr. Donghun Lee |
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196 | Nov. 9 (Fri.), 02:30 PM | E6-2. 1st fl. #1323 | Dr. Pilkyung Moon |
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195 | November 1 (Thu.), 16:00 PM | #1323, E6-2 | Dr. KyeoReh Lee |
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194 | October 26 (Fri.), 4:00 PM | #1323, E6-2 | Dr. Kyusung Hwang |
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193 | October 25 (Thu.), 4:00 PM | #1323, E6-2 | Dr. Gang Li |
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192 | October 24 (Wed.), 10:30 AM | E6-1, Lecture Room 1501(1F) | Prof. Kerry J. Vahala |
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191 | October 18 (Thu.), 16:00 PM | #1323, E6-2 | Prof. Jongseok Lee |
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190 | October 19 (Fri.), 10:00 AM | #1323, E6-2 | Dr. Jongsoo Yoo |
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189 | October 18 (Thu.), 10:00 AM | #1323, E6-2 | Dr. Duyoung Min |
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188 | October 16 (Tue.), 10:00 AM | #1323, E6-2 | Dr. Won-Ki Cho |
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187 | October 15 (Mon.), 16:00 PM | #1323, E6-2 | Dr. Yongjoo Baek |
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186 | October 11 (Thu.), 16:00 PM | #1323, E6-2 | Prof. Joung-Real Ahn |
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185 | Oct. 12 (Fri.), 04:00 PM | E6-2. 1st fl. #1323 | Dr. HyungWoo Lee |
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184 | Oct. 12 (Fri.), 02:30 PM | E6-2. 1st fl. #1323 | Dr. Daniel Kyungdeock Park |
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183 | October 4 (Thu.), 16:00 PM | #1323, E6-2 | Prof. Soo Jin Kim |
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182 | September 20 (Thu.), 16:00 | #1323, E6-2 | Prof. Joo-Hiuk Son |
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181 | September 5 (Wed.), 16:00 PM | #1323, E6-2 | Dr. Dirk Wulferding |
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