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Plasmonics

Feasibility of All Single-Qubit Gates with Four InGaAs Quantum Dots Coupled to Two Silver Nanowires

Chol-Min Kim, Nam-Chol Kim, Myong-Chol Ko, Ju-Song Ryom, Su-Ryon Ri

Published Jul 24, 2024• 0 citations
Publisher

Abstract

Abstract We have proposed all single-qubit logic gates with four InGaAs quantum dots (QDs) coupled to a T-type plasmonic waveguides (PWs) wherein binary qubits are encoded by frequency of photons. Our results reveal that by adjusting distance between QDs, coupling strength and frequency detuning in a proper manner, an arbitrary single-qubit gates can be achieved. We investigated schemes theoretically via the real-space approach and estimated feasibilities of a proposed one by fidelities for a variety of parameters. Under the present technology and high fidelities, our proposed schemes are feasible, opening the promising perspectives for constructing quantum computation and quantum information processing.

DOI
10.1007/s11468-024-02415-0

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