visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-12-14 16:00 
연사  
장소 CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus 

물리학과 야니스 교수 연구실/액시온 및 극한상호작용 연구단 (CAPP/IBS) 입니다.

아래 세미나에 관심 있으신 연구자들의 참석을 요청드립니다.

CAPP seminars will be held. Anyone interested in this topic is warmly welcome.

 

Speaker: Dr. Yong-Ho LEE (KRISS)

Date: December 14, 2023 (Thursday) 

Time: 4:00 PM (KST)

Venue: CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus

 

https://kaist.zoom.us/j/6108068959?pwd=TXV2OGlWdVRtcGhmNXVTRWlla2pHQT09

Meeting ID: 610 806 8959

Passcode: 131015

 

Topic: Superconducting qubits for large-scale quantum computers - Status of development in Korea and global trend

 

Abstract:

 

Quantum computing is attracting much attention recently due to the possibility of superior computing capacity compared with the classical computers. Quantum computing is based on the advantage of quantum mechanical phenomena in qubits; quantization of states, superposition of the two states, and entangement between qubits. Among the possible platforms for the qubits, superconducting qubit has several advantages; fast gate operation, relatively long coherence time, high gate fidelity, best scalability of the superconducting circuits using semiconductor fabrication technology, mature and stable precision microwave and cryogenic technology, and easy-to-operate and reliable hardware. Therefore superconducting qubit is one of the most widely studied platform worldwide.

 

In the superconducting qubit, we control the two lowest energy states in the superconducting circuits, and its energy difference is equivalent to about 250 mK. Therefore we need to protect the qubits well from the environment thermal and electromagnetic interferences. And accurate and precise control of microwave pulses and quantum-limited measurement of microwave signals are needed for high-fidelity operation of the qubit system.

 

 

In the talk, I will introduce the basic concept of the superconductivity-based quantum computing, design and fabrication of superconducitng qubits, microwave control and measurement technology, and cryogenic and microwave components of the quantum computing system. And, the ongoing project for developing superconducting quantum computing system in Korea, and global trend for higher-performance quantum computing will be introduced.

 

Seminar Poster_IBS Joint Colloquium_20231214.jpg

 

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
303 2019-07-21 12:00    Challenges and Opportunities in Theoretical Particle Physics 2019 file
302 2022-01-25 15:00    Emulating twisted double bilayer graphene with a multiorbital optical lattice file
301 2019-09-10 15:00    (2+1) D Duality Web from 3D Euclidean Lattice file
300 2022-01-12 11:00    Spectroscopic study of trapped ions towards probing dark matter and new physics file
299 2024-11-30 10:30  Joon Young Park  Towards probing topological phases in Corbino-geometry Josephson junctions on a topological insulator surface
298 2022-05-19 15:00    (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis
297 2022-05-19 15:00    (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis
296 2023-07-10 16:00    Electronic structures of magnetic and non-magnetic ordering in d- and f-electrons systems
295 2019-08-16 14:00    Multiferroic and Magnetoelectric Effects by Tailoring Interfacial Chemistry and Physics in Correlated Oxides file
294 2021-05-17 17:00    Spin current generation and detection in uniaxial antiferromagnets file
293 2019-05-08 16:00    Imaging valley dependent electron transport in 2D semiconductors file
292 2019-05-08 16:00    Imaging valley dependent electron transport in 2D semiconductors file
291 2025-03-14 14:00  Jeonghee Rho (SETI Institute)  JWST Imaging and Spectroscopy of the Supernova Remnant Cassiopeia A and Molecule and Dust Formation file
290 2024-12-17 15:00  Isaac H. Kim  Learning state preparation circuit for quantum phases of matter (Isaac H. Kim, UC Davis)
289 2019-06-27 14:00    Gapless Kitaev Spin Liquid to Loop and String Gases file
288 2016-06-16 16:00    Quantum information processing using quantum dots and photonic crystal cavities
287 2020-12-11 16:00    Atomic and electronic reconstruction at van der Waals interface in twisted 2D materials
286 2024-02-16 10:00    Optical conductivity of superconducting states driven by Van Hove singularities
285 2019-08-01 14:00    Low-density Superconductivity in SrTiO3 Probed by Planar Tunneling Spectroscopy file
284 2024-09-26 14:00    Quantum spin nematic phase in a square-lattice iridate