Robust Charge-based Qubit Encoding

Details Robust Charge-based Qubit Encoding Robust Charge-based Qubit Encoding

2004-12-15

arxiv.org/abs/quant-ph/0412122v3

Phys. Rev. B 72, 075348 (2005)

Physics

Quantum Physics

6 Pages, 7 Figures. Published Version

Scientific paper

10.1103/PhysRevB.72.075348

We propose a simple encoding of charge-based quantum dot qubits which
protects against fluctuating electric fields by charge symmetry. We analyse the
reduction of coupling to noise due to nearby charge traps and present single
qubit gates. The relative advantage of the encoding increases with lower charge
trap density.

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