Electron–nuclear interaction in 13C nanotube double quantum dots

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Electron–nuclear interaction in 13C nanotube double quantum dots

For coherent electron spins, hyperfine coupling to nuclei in the host material can either be a dominant source of unwanted spin decoherence1–3 or, if controlled effectively, a resource enabling storage and retrieval of quantum information4–7. To investigate the effect of a controllable nuclear environment on the evolution of confined electron spins, we have fabricated and measured gate-defined ...

متن کامل

Spin-orbit effects in carbon-nanotube double quantum dots

S. Weiss,1 E. I. Rashba,2,3,4 F. Kuemmeth,2 H. O. H. Churchill,2 and K. Flensberg1 1Niels Bohr Institute and Nano-Science Center, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark 2Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 3Center for Nanoscale Systems, Harvard University, Cambridge, Massachusetts 02138, USA 4Department of Physics, Lou...

متن کامل

Excited state spectroscopy in carbon nanotube double quantum dots.

We report on low-temperature measurements in a fully tunable carbon nanotube double quantum dot. A new fabrication technique has been used for the top-gates in order to avoid covering the whole nanotube with an oxide layer as in previous experiments. The top-gates allow us to form single dots and control the coupling between them, and we observe 4-fold shell filling. We perform inelastic transp...

متن کامل

Spin-valley blockade in carbon nanotube double quantum dots

We present a theoretical study of the Pauli or spin-valley blockade for double quantum dots in semiconducting carbon nanotubes. In our model, we take into account the following characteristic features of carbon nanotubes: i fourfold spin and valley degeneracy of the quantum-dot levels, ii the intrinsic spin-orbit interaction which is enhanced by the tube curvature, and iii valley mixing due to ...

متن کامل

Dephasing and hyperfine interaction in carbon nanotube double quantum dots: The clean limit

We consider theoretically 13C-hyperfine interaction-induced dephasing in carbon nanotubes double quantum dots with curvature-induced spin-orbit coupling. For two electrons initially occupying a single dot, we calculate the average return probability after separation into the two dots, which have random nuclear spin configurations. We focus on the long-time saturation value of the return probabi...

متن کامل

ذخیره 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: Nature Physics

سال: 2009

ISSN: 1745-2473,1745-2481

DOI: 10.1038/nphys1247