Spin Quantum Bit with Ferromagnetic Contacts for Circuit QED

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.160502· OSTI ID:21467020

Cottet, Audrey; Kontos, Takis ^[1]

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1. Laboratoire Pierre Aigrain, Ecole Normale Superieure, CNRS (UMR 8551), Universite P. et M. Curie, Universite D. Diderot, 24 rue Lhomond, 75231 Paris Cedex 05 (France)

We theoretically propose a scheme for a spin quantum bit based on a double quantum dot contacted to ferromagnetic elements. Interface exchange effects enable an all electric manipulation of the spin and a switchable strong coupling to a superconducting coplanar waveguide cavity. Our setup does not rely on any specific band structure and can in principle be realized with many different types of nanoconductors. This allows us to envision on-chip single spin manipulation and readout using cavity QED techniques.

• OSTI ID: 21467020
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 105; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ANGULAR MOMENTUM
CAVITY RESONATORS
COUPLING
ELECTRODYNAMICS
ELECTRONIC EQUIPMENT
ELECTRONIC STRUCTURE
EQUIPMENT
FERROMAGNETISM
FIELD THEORIES
INFORMATION
INTERFACES
MAGNETISM
NANOSTRUCTURES
PARTICLE PROPERTIES
QUANTUM DOTS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
QUANTUM INFORMATION
QUBITS
RESONATORS
SPIN
SUPERCONDUCTING CAVITY RESONATORS
SUPERCONDUCTING DEVICES
WAVEGUIDES