Toward the manipulation of a single spin in an AlGaAs/GaAs single-electron transistor

Sami Amasha; Kenneth MacLean; Dominik Zumbühl; Iuliana Radu; Marc A. Kastner; Micah P. Hanson; Arthur C. Gossard

doi:10.1117/12.665548

12 May 2006 Toward the manipulation of a single spin in an AlGaAs/GaAs single-electron transistor

Sami Amasha, Kenneth MacLean, Dominik Zumbühl, Iuliana Radu, Marc A. Kastner, Micah P. Hanson, Arthur C. Gossard

Proceedings Volume 6244, Quantum Information and Computation IV; 624419 (2006) https://doi.org/10.1117/12.665548
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Single-electron transistors (SETs) are attractive candidates for spin qubits. An AlGaAs/GaAs SET consists of a confined two-dimensional droplet of electrons, called an artificial atom or quantum dot, coupled by tunnel barriers to two conducting leads. Controlling the voltages on the lithographic gates that define the quantum dot allows us to confine a single electron in the dot, as well as to adjust the tunnel barriers to the leads. By applying a magnetic field, we can split the spin-up and spin-down states of the electron by an energy |g|μ_BB; the goal is to utilize coherent superpositions of these spin states to construct a qubit. We will discuss our attempts to observe electron spin resonance (ESR) in this system by applying magnetic fields at microwave frequencies. Observation of ESR would demonstrate that we can manipulate a single spin and allow us to measure the decoherence time T₂*.

Citation Download Citation

Sami Amasha, Kenneth MacLean, Dominik Zumbühl, Iuliana Radu, Marc A. Kastner, Micah P. Hanson, and Arthur C. Gossard "Toward the manipulation of a single spin in an AlGaAs/GaAs single-electron transistor", Proc. SPIE 6244, Quantum Information and Computation IV, 624419 (12 May 2006); https://doi.org/10.1117/12.665548

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available