Chol-Min Kim, Nam-Chol Kim, Myong-Chol Ko, Ju-Song Ryom, Su-Ryon Ri
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引用次数: 0
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.
期刊介绍:
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.