Do different observers see different physics?
開始日時 | 2022/07/25 16:00 |
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終了日時 | 2022/07/25 17:00 |
講演者 | 川合 光 招聘教授(台湾国立大学) |
会場 | ハイブリッド形式 : オンライン (Zoom) + セミナールーム(研究本館321,322) |
連絡先 | 酒井勝太/sakaika-AT-post.kek.jp |
言語 | English |
ウェブサイト |
概要
Considering a system of particles in a gravitational field for example, in classical mechanics, there is naturally a one-to-one correspondence between the motion observed by an freely falling observer and the motion observed by a distant observer. However, in quantum mechanics, a "good wave packet" whose position and velocity are relatively well determined for one observer is not necessarily a "good wave packet" for another observer, which means the above one-to-one correspondence no longer exists. We will argue that such deviations can be significantly large when non-renormalizable interactions, or interactions that becomes strong at the Planck scale, such as gravity, are taken into account.