Production of multipartite entanglement for electron spins in quantum dots
نویسندگان
چکیده
منابع مشابه
Adiabatic optical entanglement between electron spins in separate quantum dots
S. K. Saikin,1,2,* C. Emary,3 D. G. Steel,4 and L. J. Sham1 1Department of Physics, University of California–San Diego, La Jolla, California 92093, USA 2Department of Physics, Kazan State University, Kazan 420008, Russian Federation 3Institut für Theoretische Physik, TU Berlin, Hardenbergstr. 36, Berlin D-10623, Germany 4Department of Physics, The University of Michigan, Ann Arbor, Michigan 481...
متن کاملSpins in few-electron quantum dots
The canonical example of a quantum-mechanical two-level system is spin. The simplest picture of spin is a magnetic moment pointing up or down. The full quantum properties of spin become apparent in phenomena such as superpositions of spin states, entanglement among spins, and quantum measurements. Many of these phenomena have been observed in experiments performed on ensembles of particles with...
متن کاملQuantum Computing with Electron Spins in Quantum Dots
We present a set of concrete and realistic ideas for the implementation of a small-scale quantum computer using electron spins in lateral GaAs/AlGaAs quantum dots. Initialization is based on leads in the quantum Hall regime with tunable spin-polarization. Read-out hinges on spin-to-charge conversion via spin-selective tunneling to or from the leads, followed by measurement of the number of elec...
متن کاملControl and measurement of electron spins in semiconductor quantum dots
We present an overview of experimental steps taken towards using the spin of a single electron trapped in a semiconductor quantum dot as a spin qubit [Loss and DiVincenzo, Phys. Rev. A 57, 120 (1998)]. Fabrication and characterization of a double quantum dot containing two coupled spins has been achieved, as well as initialization and single-shot read-out of the spin state. The relaxation time ...
متن کاملCoherent manipulation of coupled electron spins in semiconductor quantum dots.
We demonstrated coherent control of a quantum two-level system based on two-electron spin states in a double quantum dot, allowing state preparation, coherent manipulation, and projective readout. These techniques are based on rapid electrical control of the exchange interaction. Separating and later recombining a singlet spin state provided a measurement of the spin dephasing time, T2*, of app...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2007
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.76.052309