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
310 2018-10-15 16:00  #1323, E6-2  Universal properties of macroscopic current-carrying systems file
309 2018-04-11 13:30  #1323 (E6-2, 1st fl.)  Probing 3D Structure and Physical Properties of Materials at the Single-Atom Level file
308 2022-06-10 11:00  Online seminar  Record-quality two-dimensional electron systems file
» 2022-05-13 16:00  자연과학동(E6-2) 1st fl. #1323  High-fidelity iToffoli gate for fixed-frequency superconducting qubits file
306 2017-05-12 13:30  E6-2. 1st fl. #1323  Topological Dirac insulator
305 2018-04-11 16:00  #1323 (E6-2, 1st fl.)  Non-Gaussian states of multimode light generated via hybrid quantum information processing file
304 2016-05-13 13:30  E6. #1501(1st fl.)  Aperiodic crystals in low dimensions
303 2022-08-09 14:00  KI building (E4), Lecture Room Red (B501)  Quantum biology in fluorescent protein: a new model system to study quantum effects in biology file
302 2018-03-16 16:00  E6-2. 1st fl. #1323  Van der Waals Heterostructures from Quantum Transport to Ultrafast Optoelectronics file
301 2018-03-16 16:00  E6-2. 1st fl. #1323  Van der Waals Heterostructures from Quantum Transport to Ultrafast Optoelectronics file
300 2015-11-06 16:30  E6-2, #5318  Topological Dirac line nodes in centrosymmetric semimetals
299 2019-04-19 14:30  E6-2. 1st fl. #1323  A family of finite-temperature electronic phase transitions in graphene multilayers file
298 2019-11-01 14:30  E6-2. 1st fl. #1323  Squeezing the best out of 2D materials file
297 2017-09-26 11:00  #1323 (E6-2. 1st fl.)  Time-resolved ARPES study of Dirac and topological materials
296 2016-04-08 13:30  E6-2. 1st fl. #1501  Theoretical Overview of Iron-based superconductors and its future
295 2019-06-28 13:30  #1323, E6-2  Magnetic domains and domain wall conduction in pyrochlore iridate thin films and heterostructures file
294 2016-10-27 16:00  #1323(E6-2)  Terahertz Metal Optics
293 2016-11-18 10:30  #5318(5th fl.)  Non-equilibrium many-body spin dynamics in diamond
292 2022-09-15 13:00  E6-2, #1323  AdS black holes: a review
291 2022-05-18 16:00  E6-2. #1323 & Zoom  Geometry, Algebra, and Quantum Field Theory