東京大学生産技術研究所の李と申します。
羽田野研究室では、下記の通りセミナーを開催致します。
皆様の奮ってのご参加をお待ちしております。
なお、当研究室におけるセミナー情報は、次のリンクよりご覧頂けます。
hatano-lab.iis.u-tokyo.ac.jp/seminar-j.html
当セミナーは原則として現地会場での開催となりますが、オンライン参加をご希望の方はご連絡下さい。
*本案内は複数のメーリングリストにお送りしております。重複して受け取られました方は何卒ご容赦下さい。
Dear All,
This is Jaeha Lee from the Institute of Industrial Science, the University of Tokyo.
We are pleased to announce an upcoming seminar as follows.
Information regarding our seminar series is available on our web site.
hatano-lab.iis.u-tokyo.ac.jp/seminar-e.html
Those who are interested are welcome to join us on-site. For those who wish to join us online, please feel free to contact us.
* Apologies if you have received multiple copies of this announcement.
記
日時:2025年12月19日(金)13時30分〜 / Friday, 19th December 2025, 13:30 JST –
場所:東京大学生産技術研究所 研究実験棟I三階大会議室(The large conference room, 3rd floor (US) / 2nd floor (UK))
来場:http://hatano-lab.iis.u-tokyo.ac.jp/access-j.html / hatano-lab.iis.u-tokyo.ac.jp/access-e.html
講師:Bao Ruicheng さん(東大 / U. Tokyo)
演題:Initial-State Typicality in Quantum Relaxation with implications for the Mpemba effect and a new performance metric for dissipative quantum tasks
要旨:Relaxation in open quantum systems is fundamental to quantum science and technologies. However, the systematic influence of the initial state on relaxation dynamics remains a central, largely open question. Here, we reveal a typicality phenomenon in high-dimensional open quantum systems: under verifiable conditions, the relaxation process becomes nearly initial-state-independent as system size increases. We rigorously establish this typicality for broad classes of thermalization processes. This finding has significant conceptual implications. It suggests that widely used metrics, such as the Liouvillian gap and conventional relaxation time, merit re-examination in this typical regime. We formalize this by introducing two new concepts: the “typical strong Mpemba effect” and the “typical relaxation time.” Practically, we identify a scalable route to accelerating relaxation and propose a typical-case benchmark for dissipative quantum tasks. The new benchmark complements conventional worst-case metrics, offering a more relevant descriptor for the cost of thermal quantum simulations and dissipative state preparation.
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李 宰河
〒277-8574 千葉県柏市柏の葉5-1-5
東京大学生産技術研究所
電 話:04-7136-6962
メール:lee@iis.u-tokyo.ac.jp
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