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Coupled quantum dots as quantum gates [PDF]
Physical Review B, 1999 We consider a new quantum gate mechanism based on electron spins in coupled semiconductor quantum dots. Such gates provide a general source of spin entanglement and can be used for quantum computers. We determine the exchange coupling J in the effective Heisenberg model as a function of magnetic (B) and electric fields, and of the inter-dot distance (a)
Guido Burkard +2 more
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Optical refrigeration on cadmium selenide/cadmium sulfide quantum dots [PDF]
Scientific ReportsCritical progress in perfecting semiconducting quantum dots’ photoluminescence quantum yield has been made in the past few years. The production of quantum dots with nearly unitary quantum yield has significantly expanded their possible applications, as ...
Muchuan Hua, Ricardo S. Decca
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Towards non-blinking and photostable perovskite quantum dots [PDF]
Nature CommunicationsSurface defect-induced photoluminescence blinking and photodarkening are ubiquitous in lead halide perovskite quantum dots. Despite efforts to stabilize the surface by chemically engineering ligand binding moieties, blinking accompanied by ...
Chenjia Mi +11 more
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Electron and hole spectra in quantum wire with two quantum dots in the electric field [PDF]
Condensed Matter Physics, 2007 The energy spectrum of electron and hole is investigated in a complicated nanoheterosystem consisting of two cylindrical semiconductor quantum dots placed into semiconductor quantum wire.
O.Makhanets, A.Gryschyk, M.Dovganiuk
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Quantum teleportation with imperfect quantum dots [PDF]
npj Quantum Information, 2021 AbstractEfficient all-photonic quantum teleportation requires fast and deterministic sources of highly indistinguishable and entangled photons. Solid-state-based quantum emitters—notably semiconductor quantum dots—are a promising candidate for the role.
Val Zwiller +11 more
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Optimization of quantum dots for solar cell applications [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2021 The quantum dots-sensitized solar cells (QDSSC) provide an alternative concept to present day photovoltaic devices. Cadmium sulfide/Zinc sulfide-sensitized solar cells have been synthesized by chemical bath deposition, based on an aqueous medium ...
Lekshmi Gangadhar, P. K Praseetha
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Chemosensors, 2023 Quantum dots nanomaterials have attracted extensive interest for fluorescence chemical sensors due their attributes, such as excellent optical characteristics, quantum size effects, interface effects, etc. Moreover, the fluorescence properties of quantum
Zhezhe Wang +4 more
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Size and Shape Effects of Silicon Quantum Dot Cohesive Energy
Taiyuan Ligong Daxue xuebao, 2023 Purposes It aims to analyze the effect of the size and shape of silicon quantum dots on their binding energy. Methods The cohesive energy of silicon quantum dots with different sizes and shapes is calculated by using the method of density functional ...
Xiangsen LUAN, Xiaoli YAN, Hui LI
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Quantum Dots and Applications [PDF]
Materials, 2020 It is the unique size-dependent band gap of quantum dots (QDs) that makes them so special in various applications. They have attracted great interest, especially in optoelectronic fields such as light emitting diodes and photovoltaic cells, because their photoluminescent characteristics can be significantly improved via optimization of the processes by
Chang-Yeol Han +2 more
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Quantum Dots in Graphene [PDF]
Physical Review Letters, 2007 4 pages, 3 ...
P. G. Silvestrov +2 more
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