Detection of spin polarization with a side coupled quantum dot

Abstract

We propose realistic methods to detect local spin polarization, which utilize a quantum dot side coupled to the target system. By choosing appropriate states in the dot, we can put spin selectivity to the dot and detect spins in the target with small disturbance. We also present an experiment which realizes one of the proposed spin detection schemes in magnetic fields.

5 pages, 6 figures

References in corpus (8)

• Single-shot read-out of an individual electron spin in a quantum dot
• Zeeman energy and spin relaxation in a one-electron quantum dot
• Excited-state spectroscopy on a nearly-closed quantum dot via charge detection
• Spin Hall Effect
• Spin filtering by a periodic nanospintronic devices
• Spin filtering due to quantum interference in periodic mesoscopic networks
• Intrinsic Spin Hall Effect
• Excited-state spectroscopy on a quantum dot side-coupled to a quantum wire

Cited by in corpus (10)

• Filtering and analyzing mobile qubit information via Rashba-Dresselhaus-Aharonov-Bohm interferometers
• Spin filtering in a Rashba-Dresselhaus-Aharonov-Bohm double-dot interferometer
• Majorana-like localized spin density without bound states in topologically trivial spin-orbit coupled nanowires
• Magnetic field effects on a nanowire with inhomogeneous Rashba spin-orbit coupling: Spin properties at equilibrium
• Real-time dynamics of spin-dependent transport through a double-quantum-dot Aharonov-Bohm interferometer with spin-orbit interaction
• Detection of spin polarization utilizing singlet and triplet states in a single-lead quantum dot
• Probing local electronic states in the quantum Hall regime with a side coupled quantum dot
• Fast probe of local electronic states in nanostructures utilizing a single-lead quantum dot
• Spin-filtering and charge- and spin-switching effects in a quantum wire with periodically attached stubs
• Spin-dependent coherent transport in a double quantum dot system