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SUMMARY:Andreev Bound States in Superconductor – Topological Insulator N
 anowire Devices
DTSTART:20260929T070000Z
DTEND:20260929T080000Z
DTSTAMP:20260925T102600Z
UID:indico-event-5335@indico-tdli.sjtu.edu.cn
DESCRIPTION:Speakers: Junya Feng (冯军雅) (Institute of Physics\, Chine
 se Academy of Sciences)\n\nHost: Prof. Jianghua Ying  \nVenue: TDLI Mee
 ting Room N400\nTencent Meeting link:  https://meeting.tencent.com/dm/knd
 2lnOZMT2E \nMeeting ID: 682389058\, no password\n \nAbstract:\nTopologica
 l insulator nanowires (TINWs) proximitized by superconductors (SCs) provid
 e a rich platform for exploring exotic quantum states and novel transport 
 phenomena\, with direct relevance to topological quantum computation. In t
 his talk\, we present a systematic study of Andreev bound states (ABSs) in
  BiSbTeSe₂-based TINWs\, including long-range crossed Andreev reflection
  and flux-tunable ABSs. These results demonstrate that SC–TINW hybrid de
 vices constitute a promising platform for Majorana physics. At the sub-mil
 likelvin (sub-mK) station of the Synergetic Extreme Condition User Facilit
 y (SECUF)\, we have achieved a base temperature of 0.3 mK with large cooli
 ng power\, magnetic fields of up to 16 T\, and an ultra-low-noise measurem
 ent environment. Together\, these capabilities offer an ideal platform for
  observing and manipulating quantum states\, such as Majorana bound states
 \, in SC–TINW hybrids and other topological quantum devices.\n \nBiogra
 phy:\nJunya Feng\, Associate Professor at the Institute of Physics\, Chine
 se Academy of Sciences\, and Head of the Sub-millikelvin Experimental Stat
 ion of the Comprehensive Extreme Conditions Experimental Facility. He was 
 selected for the "Outstanding Talent Recruitment Program (Category II)" of
  the Institute of Physics\, Chinese Academy of Sciences. He received his b
 achelor's degree from the Department of Physics\, Nanjing University in 20
 12 and his PhD in Physics from the University of Chinese Academy of Scienc
 es in 2017. Afterwards\, he pursued postdoctoral research at the Universit
 y of Cologne in Germany. He joined the Huairou Research Division of the In
 stitute of Physics\, Chinese Academy of Sciences in October 2025.\nHis lon
 g-term research focuses on low-temperature transport studies of topologica
 l quantum devices. His research interests include ultra-low temperature te
 chnology\, topological superconducting proximity effect\, transport proper
 ties of topological materials and superconducting quantum bits. He has ach
 ieved systematic research results in the field of superconducting proximit
 y effect of topological insulators. He is skilled in the construction of u
 ltra-low temperature experimental platforms\, micro-nano device fabricatio
 n and quantum transport measurement techniques. He has presided over or pa
 rticipated in multiple national research projects such as the General Prog
 ram of the National Natural Science Foundation of China and the National K
 ey R&D Program of China.\n\nhttps://indico-tdli.sjtu.edu.cn/event/5335/
LOCATION:Tsung-Dao Lee Institute/N4F-N400 - meeting room (Tsung-Dao Lee In
 stitute)
URL:https://indico-tdli.sjtu.edu.cn/event/5335/
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