Robust Charge-based Qubit Encoding

Abstract

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.

6 Pages, 7 Figures. Published Version

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Cited by in corpus (9)

• A decoherence-free subspace in a charge quadrupole qubit
• Strong photon coupling to the quadrupole moment of an electron in solid state
• Quantum Dot Spin Cellular Automata for Realizing a Quantum Processor
• Quantum Field Mechanics: Complex-Dynamical Completion of Fundamental Physics and Its Experimental Implications
• Decoherence by electromagnetic fluctuations in double-quantum-dot charge qubits
• Improving Intrinsic Decoherence in Multi-Quantum-Dot Charge Qubits
• Quantum computing based on space states without charge transfer
• Efficient unitary method for simulation of driven quantum dot systems
• Proposed Five-Electron Charge Quadrupole Qubit