Decoherence induced by anisotropic hyperfine interaction in Si spin qubits

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

RF Instrumentation and System Design for Coherent Control of Anisotropic Hyperfine - Coupled Electron / Nuclear Spin Qubits

Coherent control is a fundamental challenge in quantum information processing (QIP). Our system of interest employs a local, isolated electron spin to coherently control nuclear spins. Coupled electron/nuclear spins are a promising candidate for QIP: nuclear spins are used for information storage and computation due to their long coherence times, while the electron is used as a spin actuator fo...

متن کامل

Decoherence and Dynamical Decoupling in Solid-state Spin Qubits

Title of dissertation: DECOHERENCE AND DYNAMICAL DECOUPLING IN SOLID-STATE SPIN QUBITS Wayne Martin Witzel Doctor of Philosophy, 2007 Dissertation directed by: Professor Sankar Das Sarma Department of Physics This dissertation is a study of the decoherence of a solid-state spin qubit, either that of a localized electron spin or a donor nucleus, caused by a nuclear spin bath relevant to semicond...

متن کامل

Optical control and decoherence of spin qubits in quantum dots

Various methods of all-optical spin control in semiconductor quantum dots are discussed, and different ways of rotating a single confined electron spin by optical coupling to a trion state are presented in the paper. A method for controlling the polarization of a confined exciton via a two-photon transition is also discussed. Finally, the effect of phonon-induced decoherence on the fidelity of ...

متن کامل

Long-time electron spin storage via dynamical suppression of hyperfine-induced decoherence in a quantum dot

Wenxian Zhang,1,2 N. P. Konstantinidis,1,* V. V. Dobrovitski,1 B. N. Harmon,1 Lea F. Santos,3 and Lorenza Viola2 1Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA 2Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755, USA 3Department of Physics, Yeshiva University, New York, New York 10016, USA Received 4 January 2008; revised manuscript received 13 ...

متن کامل

Decoherence in Josephson qubits

A high degree of quantum coherence is a crucial requirement for the implementation of quantum logic devices. Solid state nanodevices seem particularly promising from the point of view of integrability and flexibility in the design. However decoherence is a serious limitation, due to the presence of many types low energy excitations in the “internal” environment and of “external” sources due to ...

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: Physical Review B

سال: 2007

ISSN: 1098-0121,1550-235X

DOI: 10.1103/physrevb.76.035212