Search for Majorana Fermion on the surface of 3He-B

在 3He-B 表面寻找马约拉纳费米子

• 批准号: 22340095
• 负责人: OKUDA Yuuichi
• 金额: $ 12.15万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22340095/
• 关键词: 超低温; 量子凝縮系; 超流動ヘリウム３; 表面束縛状態; マヨラナ・フェルミオン; 音響インピーダンス; 超流動3He; マヨラナ粒子; NMR

Superfluid 3He is an intensively investigated and well characterized p-wave superfluid. In the bulk BW state, which is commonly called 3He B phase, the superfluid gap is opened isotropically but near a flat boundary such as a wall of a container it can harbor interesting quasi-particle states inside the gap. These states are called surface Andreev bound states, and have not been experimentally explored in detail. Transverse acoustic impedance measurement has revealed their existence and provided spectroscopic details of the dispersion of the bound states. Recent theoretical arguments claim that the surface Andreev bound states of superfluid 3He B phase can be recognized as the edge states of the topological superfluid and be regarded asa Majorana fermion, a fancy particle which has not been confirmed in elementary particle physics. In this review, we present up-to-date knowledge on the surface Andreev bound states of 3He B phase revealed by acoustic spectroscopy and the possible realization of a Majorana fermion, along with related studies on this topic.

超氟3HE是一个经过深入研究的且表征良好的P波超流体。在通常称为3he B相的散装BW状态下，超流体间隙是各向同性的，但在平坦的边界附近，例如容器的壁，它可以藏有缝隙内部有趣的准粒子状态。这些状态称为表面Andreev结合状态，尚未进行实验探索。横向声阻抗测量揭示了它们的存在，并提供了界面分散体的光谱细节。最近的理论论点声称，超氟3e b相的表面Andreev结合状态可以被认为是拓扑超流体的边缘状态，并被视为Asa Majora Majorana fermion，这是一种在基本粒子物理学中尚未证实的花式粒子。在这篇综述中，我们介绍了通过声学光谱揭示的3HE B阶段的Andreev结合状态的最新知识，以及有关Majorana fermion的可能实现，以及有关该主题的相关研究。

项目成果

Study for Surface States of Superfluid 3He in Non-Unitary Phases at High, Magnetic Fields

高磁场下非单一相超流体 3He 表面状态的研究

• 发表时间: 2010
• 作者: S. Murakawa;A. Yamaguchi;M. Arai;M. Wasai;Y. Aoki;H. Ishimoto;R. Nomura;and Y.Okuda
• 通讯作者: and Y.Okuda

Surface Andreev Bound States and Majorana Fermions in the Superfluid 3He B Phase

超流体 3He B 相中的表面安德烈夫束缚态和马约拉纳费米子

• 发表时间: 2012
• 作者: 和才将大;村川智;秋山綱紀;和田雄一郎;田村雄太;青木悠樹;斎藤政通;野村竜司;奥田雄一
• 通讯作者: 奥田雄一

Suppression of KT transition in 4He film under high pressure 3He, poster

高压下 4He 薄膜中 KT 转变的抑制 3He，海报

• 发表时间: 2011
• 作者: S. Murakawa;M. Wasai;K. Akiyama;R.Nomura;and Y. Okuda
• 通讯作者: and Y. Okuda

Surface Andreev Bound States and ajorana Fermions in the Superfluid3He B Phase(poster)

超流体3He B 相中的表面安德列夫束缚态和阿约拉纳费米子（海报）

• 发表时间: 2012
• 作者: H. Ogusu;N. Takeshita;K. Izawa;J. Yamaura;Y. Ohishi;S. Tsutsui;Y. Okamoto;Z. Hiroi;M.Wasai,K.Akiyama,T.Nakao,S.Murakawa,R.Nomura and Y.Okuda
• 通讯作者: M.Wasai,K.Akiyama,T.Nakao,S.Murakawa,R.Nomura and Y.Okuda

Surface Andreev States and Surface Majorana States on supe ruid 3He-B

超级鲁伊德 3He-B 上的安德列夫州表面和马约拉纳州表面

• 发表时间: 2010
• 作者: S. Konishi;Y. Nagatomo;K. Iwamitsu;T. Shimamoto;A. Fujii;I. Akai;Y.Okuda
• 通讯作者: Y.Okuda