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
342 2012-02-13 16:00  E6, 1501  Physics Colloquium : 2012 Spring
341 2011-09-03 16:00  E6, 1501  Physics Colloquium : 2011 Fall file
340 2011-05-16 16:00  E6, 1501  Photonics with surface plasmon polaritons
339 2010-02-14 16:00  E6, 1501  Physics Colloquium - 2011 Spring file
338 2010-09-06 16:00  E6, 1501  Physics Colloquium : 2010 Fall file
337 2010-02-08 16:00  E6, 1501  Physics Ciolloquium : 2010 Spring file
336 2009-10-21 16:00  E6, 1501  Interdimensional Universality of Dynamic Interfaces
335 2009-09-07 16:00  E6, 1501  Physics Colloquium : 2009 Fall file
334 2009-02-23 16:00  E6, 1501  Physics Colloquium : 2009 Spring file
333 2023-06-26 11:00  E6, Rm#1323  Quantum computing on magnetic racetracks with flying domain wall qubits
332 2023-08-24 11:00  E6, Rm#1323  Advancing magnonic metamaterials: spin waves in nanomagnetic arrays
331 2023-09-27 16:00  E6, Rm#2501  Chiral Magnets: Domain-Wall Skyrmions and String Theory Realization
330 2014-12-22 14:00  E6, Rm1319  Dynamics of molecular motors: Power stroke vs Brownian ratchet file
329 2022-04-08 11:00  E6-1 #1323  (응집물리 세미나) Flat-surface-assisted physical phenomena occurring in single crystal metal thin film file
328 2022-08-12 10:00  E6-1 #1323  Twisted Bilayer Magnets file
327 2022-08-12 10:00  E6-1 #1323  Twisted Bilayer Magnets file
326 2022-03-25 11:00  E6-1 #1323  (응집물리 세미나) Hund's metallicity in ruthenate systems file
325 2022-08-18 10:00  E6-1 #1323  Disorder-driven phase transition in the second-order non-Hermitian skin effect
324 2022-05-20 11:00  E6-1 #1323  (응집물리 세미나) Exploration of new polymorphs in van der Waals crystals
323 2022-09-22 11:00  E6-1 #1323  2022 가을학기 응집물리 및 광학 세미나 전체 일정 file