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-Make it simple, elegant
and practical-
A. GaAs QDs B. Single InAs QD post-microcavity (First generation) C. (Second generation) D. (Third generation) E. Single InAs QD photonic crystal cavity F. GaAs MQW microcavity G. Single walled carbon nanotube H. Spectrum of donor bound magneto-excitons
Intotroduction You have reached the homepage of Quantum
Information Science group at Stanford University, lead by Professor Yoshihisa Yamamoto.
The group conducts the basic research on quantum optics, semiconductor
mesoscopic physics, nuclear and electron spin resonance, with emphasis on
quantum information system applications. The research of the group is supported by ARO, DTO, DARPA, NSF, Japan Science and Technology Agency (JST), Ministry of Education, Science and Technology (MEXT), National Institute of Informatics (NII) and Communication Technologies (NICT), Japan Society for the Promotion of Science (JSPS), Nippon Telegraph and Telephone Corporation (NTT), and Hamamatsu Photonics Corporation.
What’s Superfluid zero-state and pi-state are observed in a 1D exciton
polariton condensate array. "Coherent zero-state and pi-state
in an exciton-polariton condensate array“ Nature,
450, 529 (2007) Strong coupling between a single InAs quantum dot and monolithic post
DBR microcavity was realized. “Photon Antibunching
from a Single Quantum-Dot-Microcavity System in the Strong Coupling Regime” Phys.
Rev. Lett. 98, 117402 (2007) Very fast (100GHz clock frequency) quantum computation based on
semiconductor electron spins controlled by coherent state optical pulses is
proposed. “Quantum Computers Based on Electron Spins
Controlled by Ultrafast Off-Resonant Single Optical Pulses” Phys.
Rev. Lett. 99, 040501 (2007) A DPS-QKD system with 10GHz clock frequency and 200km fiber
transmission line is demonstrated using superconducting single photon
detectors. “Quantum key distribution over a 40-dB channel loss using
superconducting single-photon detectors”
Nature
Photonics 1, 343 (2007) Off-diagonal long range order is observed in the exciton polariton
condensate by using the Young's double slit interferometer. “Spatial
Coherence of a Polariton Condensate” Phys.
Rev. Lett. 99, 126403 (2007) Solid-state physical system to investigate a quantum fermionic Hubbard model is proposed using surface
acoustic waves. “Quantum simulator for the Hubbard model with
long-range Coulomb interactions using surface acoustic wavers” Phys.
Rev. Lett. 99, 016405 (2007) A collective behavior of electrons in a single-walled carbon nanotube is revealed via shot noise and conductance. “Tomonaga-Luttinger Liquid Features in
Ballistic Single-Walled Carbon Nanotubes:
Conductance and Shot Noise” Phys.
Rev. Lett. 99, 036802 (2007) Thermal equilibrium quantum degeneracy was achieved in the
exciton polaritons in a GaAs MQW microcavity. “Quantum
Degenerate Exciton-Polaritons in Thermal Equilibrium” Phys.
Rev. Lett. 97, 146402 (2006) A GaN single quantum dot single photon source is operated at a
temperature of 200K. “A gallium nitride single-photon source operating
at 200 K” Nature
Materials 5, 887 (2006)
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Last
Update: Na Young Kim on May 19, 2008