visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-12-14 16:00 
일시 Dec14(Thur), 4PM 
장소 CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus 
연사 Dr. Yong-Ho LEE (KRISS) 

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 장소 제목
225 2024-02-16 10:00  E6, #1323  Optical conductivity of superconducting states driven by Van Hove singularities
224 2021-02-15 17:00  Zoom  Magnetic Cluster Octupole Domain evolutation in chiral antiferromagnets file
223 2023-02-28 11:00  E6 Room(#1322)  Topotactic redox engineering toward novel material file
222 2019-02-25 16:00  Rm. 1501 (E6)  Spring 2019: Physics Colloquium file
221 2021-02-02 14:30  Zoom  Quantum- & Nano-Photonics 세미나(Integrated Nanophotonics with Metamaterials, Microcomb, and Atomic Systems) file
220 2018-02-12 15:00  #C303, (Creation Hall 3F, KAIST Munji Campus)  The recent result of XMASS Experiment
219 2017-02-01 14:00  #1323(E6-2. 1st fl.)  Quantum electron optics using flying electrons
218 2019-12-05 16:00  #1323, E6-2  Subwavelenth Photonic Devices: From Single Photon Sources to Solar Cell file
217 2019-12-03 16:00  #1323, E6-2  Toward Quantum Materials with Correlated Oxides file
216 2019-12-27 15:00  E6-2,#5318  The superconducting order parameter puzzle of Sr2RuO4 file
215 2020-12-02 10:00  Zoom  Recent progress in Axion Dark Matter eXperiment (ADMX) technology file
214 2019-12-18 16:00  #1323, E6-2  Road to Higher Tc Superconductivity file
213 2019-12-13 13:30  #1323, E6-2  Biophysics Mini-symposium at KAIST file
212 2019-12-13 13:00  #2501, E6-2  Computational Material Designs: Current Status and Future Directions file
» 2023-12-14 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  Superconducting qubits for large-scale quantum computers file
210 2020-12-09 10:00  Zoom  Searching for the QCD axion with the ARIADNE experiment file
209 2020-12-23 10:00  Online  Online workshop for Quantitative Phase Imaging file
208 2020-12-10 13:55  Zoom  Consistency of Boltzmann equation and light dark matter from inflaton decay
207 2016-12-09 16:00  #1323(E6-2. 1st fl.  Shift Charge and Spin Photocurrents in Dirac Surface States of Topological Insulator
206 2016-12-09 13:30  #1323(E6-2. 1st fl.)  Entanglement area law in strongly-correlated systems