visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-05-13 16:00 
일시 May. 13 (Fri.), 04:00 PM 
장소 자연과학동(E6-2) 1st fl. #1323 
연사 Dr. Yosep Kim(Center for Quantum Information, KIST) 

SRC Seminar

 

 

High-fidelity iToffoli gate for fixed-frequency superconducting qubits

 

Dr. Yosep Kim

Center for Quantum Information, KIST

 

May. 13 (Fri.), 04:00 PM

E6-2. 1st fl. #1323

 

 

 

 

 

Abstract:

The development of noisy intermediate-scale quantum (NISQ) devices has extended the scope of executable quantum circuits with high-fidelity single- and two-qubit gates. Equipping NISQ devices with three-qubit gates will enable the realization of more complex quantum algorithms and efficient quantum error correction protocols with reduced circuit depth. Several three-qubit gates have been implemented for superconducting qubits, but their use in gate synthesis has been limited due to their low fidelity. In this talk, I explain how to implement a high-fidelity iToffoli gate for fixed-frequency superconducting qubits. As with the Toffoli gate, this three-qubit gate can be used to perform universal quantum computation. The iToffoli gate can be implemented by simultaneously applying microwave pulses to a linear chain of three qubits, revealing a process fidelity as high as 98.26(2)%. Moreover, I numerically show that this gate scheme can produce additional three-qubit gates which provide more efficient gate synthesis than the Toffoli and Toffoli gates. This work not only brings a high-fidelity iToffoli gate to current superconducting quantum processors but also opens a pathway for developing multi-qubit gates based on two-qubit interactions.

 

 

 

 Contact: SunYoung Choi, (sun.0@kaist.ac.kr)

Center for Quantum Coherence in Condensed Matter, KAIST

번호 날짜 장소 제목
462 2019-08-22 16:00  #1323, E6-2  Physics and Applications in Nanoelectronics and Nonomechanics file
461 2019-07-30 16:00  #1323, E6-2  Dirac fermions and flat bands in correlated kagome metals file
460 2019-06-04 17:00  #1323, E6-2  Stochastic nature of bacterial eradication using antibiotics file
459 2019-04-19 11:00  #1323, E6-2  First-principles studies of semiconductors for solar cell applications file
458 2019-05-24 16:00  #1323, E6-2  Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
457 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
456 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
455 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
454 2019-05-30 16:00  #1323, E6-2  Tuning the excitonic properties of semiconductors with light-matter interactions file
453 2019-04-11 16:00  #1323, E6-2  Massive screening for cathode active materials using deep neural network file
452 2019-04-04 16:00  #1323, E6-2  Chiral spin-photon interaction at nanoscale file
451 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
450 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
449 2019-04-26 16:00  #1323, E6-2  Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
448 2019-06-17 10:30  #1323, E6-2  Chiral Spintronics file
447 2019-05-01 16:00  #1323, E6-2  Raman and x-ray scattering study on correlated electron systems: two case examples file
446 2019-05-31 11:00  #1323, E6-2  Cavity QED with Spin Qubits file
445 2019-05-08 16:00  E6 Room(#1323)  Imaging valley dependent electron transport in 2D semiconductors file
444 2019-12-13 13:30  #1323, E6-2  Biophysics Mini-symposium at KAIST file
443 2018-07-09 14:00  #1323, E6-2  The principles of collective learning file