Results 41 to 50 of about 2,529,540 (368)
Quantum dot arrays in silicon and germanium [PDF]
Applied Physics Letters, 2019 Electrons and holes confined in quantum dots define an excellent building block for quantum emergence, simulation, and computation. In order for quantum electronics to become practical, large numbers of quantum dots will be required, necessitating the ...
W. Lawrie +17 more
semanticscholar +1 more source
Efficient Quantum Dot−Quantum Dot and Quantum Dot−Dye Energy Transfer in Biotemplated Assemblies [PDF]
ACS Nano, 2011 CdSe semiconductor nanocrystal quantum dots are assembled into nanowire-like arrays employing microtubule fibers as nanoscale molecular "scaffolds." Spectrally and time-resolved energy-transfer analysis is used to assess the assembly of the nanoparticles into the hybrid inorganic biomolecular structure. Specifically, we demonstrate that a comprehensive
Marc Achermann +4 more
openaire +3 more sources
Polar optical phonons in wurtzite spheroidal quantum dots: Theory and application to ZnO and ZnO/MgZnO nanostructures [PDF]
J. Phys.: Condens. Matter 17, 1085 (2005), 2004 Polar optical-phonon modes are derived analytically for spheroidal quantum dots with wurtzite crystal structure. The developed theory is applied to a freestanding spheroidal ZnO quantum dot and to a spheroidal ZnO quantum dot embedded into a MgZnO crystal. The wurtzite (anisotropic) quantum dots are shown to have strongly different polar optical-phonon
arxiv +1 more source
Loading a quantum-dot based “Qubyte” register [PDF]
npj Quantum Information, 2019 Electrostatically defined quantum dot arrays offer a compelling platform for quantum computation and simulation. However, tuning up such arrays with existing techniques becomes impractical when going beyond a handful of quantum dots.
C. Volk +10 more
semanticscholar +1 more source
Elimination of Bimodal Size in InAs/GaAs Quantum Dots for Preparation of 1.3-μm Quantum Dot Lasers
Nanoscale Research Letters, 2018 The device characteristics of semiconductor quantum dot lasers have been improved with progress in active layer structures. Self-assembly formed InAs quantum dots grown on GaAs had been intensively promoted in order to achieve quantum dot lasers with ...
Xiang-Bin Su +9 more
doaj +1 more source
Improving Intrinsic Decoherence in Multi-Quantum-Dot Charge Qubits [PDF]
Phys. Rev. B 76, 235309 (2007), 2007 We discuss decoherence in charge qubits formed by multiple lateral quantum dots in the framework of the spin-boson model and the Born-Markov approximation. We consider the intrinsic decoherence caused by the coupling to bulk phonon modes. Two distinct quantum dot configurations are studied: (i) Three quantum dots in a ring geometry with one excess ...
arxiv +1 more source
Quantum Optics with Quantum Dots [PDF]
The Expanding Frontier of Atomic Physics, 2003 A review on the work aimed at experimental demonstration of Pauli blocking and single-spin measurement in single-electron-charged self-assembled quantum dots is presented.
openaire +3 more sources
Research Progress of Photoanodes for Quantum Dot Sensitized Solar Cells
Cailiao gongcheng, 2017 This paper presents the development status and tendency of quantum dot sensitized solar cells. Photoanode research progress and its related technologies are analyzed in detail from the three ways of semiconductor thin films, quantum dot co-sensitization ...
LI Zhi-min +4 more
doaj +1 more source
Topological quantum gates with quantum dots [PDF]
Journal of Optics B: Quantum and Semiclassical Optics, 2003 8 pages, 3 figures, submitted to Jour. of Opt. B (special issue on Quantum Computing)
Pachos, J, Vedral, V
openaire +3 more sources
Ultrafast Field-driven Valley Polarization of Transition Metal Dichalcogenide Quantum Dots [PDF]
arXiv, 2023 We study theoretically the electron dynamics of transition metal dichalcogenide quantum dots in the field of an ultrashort and ultrafast circularly polarized optical pulse. The quantum dots have the shape of a disk and their electron systems are described within an effective model with infinite mass boundary conditions.
arxiv