visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-06-16 16:00 
일시 Jun. 16 (Thu) 4PM 
장소 #1323(E6-2, 1st fl.) 
연사 Hyochul Kim, Samsung Advanced Institute of Technology 

“Quantum information processing using quantum dots and photonic crystal cavities”

 

Jun. 16 (Thu) 4PM, #1323(E6-2, 1st fl.)
Hyochul Kim, Samsung Advanced Institute of Technology

 

The ability to interface light with solid-state quantum bits (qubits) is essential for future development of scalable and compact quantum information systems that operate on ultra-fast timescales. Photons act as ideal carriers of quantum information and can serve as an efficient quantum link between matter qubits. Quantum dots (QDs) provide a promising implementation of a matter qubit, which can store quantum information in both excitonic states and highly stable spin states, providing an atom-like system in a semiconductor platform. By coupling these QDs to optical nano-cavities it becomes possible to achieve the strong coupling regime where a QD can modify the cavity spectral response, providing an efficient light-matter interface.
In this talk, I will explain that the qubit state of a photon can be controlled by a single solid-state qubit composed of a QD strongly coupled to a photonic crystal cavity.  The QD acts as a coherently controllable qubit system that conditionally flips the polarization of a photon reflected from the cavity on picosecond timescales, which implements a controlled NOT logic gate between the QD and the incident photon. Furthermore, the spin of a single electron or hole trapped in a charged QD can be used as a solid-state qubit with long coherence time. I will discuss our recent experimental realization of a quantum phase switch using a solid-state spin confined in a QD strongly coupled to a photonic crystal cavity, where the switch applies a spin-dependent phase shift on a photon.


Contact: Yoonsoo Kim (T.2599)

번호 날짜 장소 제목
공지 2022-11-25 11:00  E6-2 #1323  [Update 세미나영상](응집물리 세미나) DMFT+ NRG: From models to real materials, from local to nonlocal correlations
277 2018-05-17 13:30  E6-2. 1st fl. #1323  Quantum Spin Liquid in Kitaev Materials file
276 2018-05-29 16:00  #1323, E6-2  Investigation on metal nanostructure/semiconductor junction and its applications file
275 2018-05-31 16:00  #1323, E6-2  Dynamic control of optical properties with gated-graphene metamaterials file
274 2018-06-01 11:00  E6-2. 1st fl. #1323  Topological phases in low-dimensional quantum materials file
273 2018-06-14 10:00  E6-2, 2nd fl. #2502  Phonons and polariton-like particles in trapped ions for quantum computation and quantum simulation file
272 2018-06-18 10:00  E6-2. 2nd fl. #2502  Rydberg electromagnetically induced transparency and microwave-to-optical conversion using Rydberg atoms file
271 2018-06-22 10:00  E6-6, Lecture Room 119 (1F)  Success in Research Career file
270 2018-06-22 16:00  #1323, E6-2  Tuning functional properties of BiFeO3 films using strain and growth chemistry file
269 2018-07-02 15:00  Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus  High Precision Magnetic Field Measurement for the Muon g-2 Experiment file
268 2018-07-09 14:00  #1323, E6-2  The principles of collective learning file
267 2018-07-12 17:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6)  The MilliQan Experiment: Search for Milli-Charged Particles at the LHC
266 2018-07-13 14:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Loop Induced Single Top Partner Production and Decay at the LHC
265 2018-07-26 14:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Inflation in String Theory and Backreaction file
264 2018-07-27 13:30  #1323, E6-2  Magnetic reversal of artificial spin ice file
263 2018-07-27 15:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima file
262 2018-08-01 11:00  양분순 빌딩 (E16-1) 207호  Future of AI: Is the brain a computer? file
261 2018-09-04 14:30  E6-2. 2st fl. #2502  Ultrafast time- and angle-resolved photoemission spectroscopy (tr-ARPES) with extreme ultraviolet laser pulses file
260 2018-09-05 16:00  #1323, E6-2  Shining a light on fractional excitations file
259 2018-09-07 15:00  학술문화관 (E9), 2층 양승택 오디토리움  Recent developments in density functional theory: From new functionals to the nature of the chemical bond file
258 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file