Results 31 to 40 of about 2,529,540 (368)
Applied Physics Letters, 2007 We present a method for the measurement of a temperature differential across a single quantum dot that has transmission resonances that are separated in energy by much more than the thermal energy. We determine numerically that the method is accurate to within a few percent across a wide range of parameters. The proposed method measures the temperature
Ann Persson +5 more
openaire +3 more sources
Using spin bias to manipulate and measure quantum spin in quantum dots [PDF]
PHYSICAL REVIEW B 77, 235309 (2008), 2008 A double-quantum-dot coupled to electrodes with spin-dependent splitting of chemical potentials (spin bias) is investigated theoretically by means of the Green's functions formalism. By applying a large spin bias, the quantum spin in a quantum dot (the dot 1) can be manipulated in a fully electrical manner.
arxiv +1 more source
Majorana bound state in a coupled quantum-dot hybrid-nanowire system [PDF]
Science, 2016 Watching Majorana bound states form Majorana bound states (MBSs) are peculiar quasiparticles that may one day become the cornerstone of topological quantum computing.
M. Deng +11 more
semanticscholar +1 more source
Co-tunneling spin blockade observed in a three-terminal triple quantum dot [PDF]
Phys. Rev. B 96, 155414 (2017), 2017 We prepare a triple quantum dot with a separate contact lead to each dot to study Pauli spin blockade in the tunnel-coupled three dots in a row. We measure the tunneling current flowing between the center dot and either the left or right dot with the left and right leads as a common source and the center lead as a drain. In the biased stability diagram,
arxiv +1 more source
Proceedings of the National Academy of Sciences, 2016 The purpose of this communication is to make a bibliographic review of Quantum Dots methods and their applications in the field of Biotechnology. Quantum dots (QDs) are a novel class of inorganic fluorophores, which are gaining widespread recognition as a result of their exceptional photophysical properties.
Pimentel Naranjo, Víctor +1 more
openaire +5 more sources
Defect Passivation of CsPbBr3 with AgBr for High‐Performance All‐Inorganic Perovskite Solar Cells
Advanced Energy & Sustainability Research, 2021 CsPbBr3‐based perovskite solar cells possess both high humidity and temperature tolerance, and also have excellent long‐term stability in air, but the defect states in the bulk perovskite are always an obstacle for further improvement of their efficiency.
Shoulong Chen +8 more
doaj +1 more source
A two-dimensional array of single-hole quantum dots [PDF]
, 2020 Quantum dots fabricated using techniques and materials that are compatible with semiconductor manufacturing are promising for quantum information processing. While great progress has been made toward high-fidelity control of quantum dots positioned in a linear arrangement, scalability along two dimensions is a key step toward practical quantum ...
arxiv +1 more source
Excitonic properties of strained wurtzite and zinc-blende GaN/Al(x)Ga(1-x)N quantum dots [PDF]
J. Appl. Phys. 94, 7178 (2003), 2003 We investigate exciton states theoretically in strained GaN/AlN quantum dots with wurtzite (WZ) and zinc-blende (ZB) crystal structures, as well as strained WZ GaN/AlGaN quantum dots. We show that the strain field significantly modifies the conduction and valence band edges of GaN quantum dots.
arxiv +1 more source
Quantum transport in a single molecular transistor at finite temperature
Scientific Reports, 2021 We study quantum transport in a single molecular transistor in which the central region consists of a single-level quantum dot and is connected to two metallic leads that act as a source and a drain respectively. The quantum dot is considered to be under
Manasa Kalla +2 more
doaj +1 more source
Solution of the Schrödinger Equation for Quantum Dot Lattices with Coulomb Interaction between the Dots [PDF]
Phys. Rev. B 62, 8126 (2000), 2000 The Schr\"odinger equation for quantum dot lattices with non-cubic, non-Bravais lattices built up from elliptical dots is investigated. The Coulomb interaction between the dots is considered in dipole approximation. Then only the center of mass (c.m.) coordinates of different dots couple with each other. This c.m.
arxiv +1 more source