Essays about: "simulation of quantum dots"

Found 5 essays containing the words simulation of quantum dots.

1. 1. THE COUPLING OF A DOUBLE QUANTUM DOT TO MICROWAVE PHOTONS

   University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

   Author : Mohamed Abrash; [2023]
   Keywords : Quantum computing; Qubit; Double quantum dot DQD ; Microwave resonator; Quantum integrated circuits; Sweet spots; Hybrid quantum circuits.; Physics and Astronomy;

   Abstract : In this study, we derive a mathematical description of a double quantum dot (DQD) embedded in a microwave resonator starting from classical electrostatics. DQDs are a promising platform for building quantum computers and have important applications in quantum sensing and the study of light-matter interactions. READ MORE

3. 2. Black-box optimization of simulated light extraction efficiency from quantum dots in pyramidal gallium nitride structures

   University essay from Linköpings universitet/Matematiska institutionen

   Author : Karl-Johan Olofsson; [2019]
   Keywords : Black-box optimization; Radial basis functions; Gallium nitride; light extraction efficiency; FDTD; surrogate functions; semiconductors; global optimization;

   Abstract : Microsized hexagonal gallium nitride pyramids show promise as next generation Light Emitting Diodes (LEDs) due to certain quantum properties within the pyramids. One metric for evaluating the efficiency of a LED device is by studying its Light Extraction Efficiency (LEE). READ MORE

4. 3. "Fat" Nanobeam-Waveguide Resonator for Suppressing Spectral Diffusion in InGaAs Quantum Dots

   University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

   Author : Qinda Guo; [2019]
   Keywords : Physics and Astronomy;

   Abstract : The coherent coupling of photons to solid state emitters is one of the building blocks for future quantum technology. However, one of the main sources for non-perfect or even strongly reduced coherence of the photons is charge noise which introduces energy shifts during or in between the photon emission events. READ MORE

5. 4. Thermopower simulation of a two level spinless quantum dot

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysik

   Author : Susanna Hammarberg; [2014]
   Keywords : quantum dot transport thermopower; Physics and Astronomy;

   Abstract : Quantum dots are interesting candidates for a broad variety of electronic components, with single electron transistors and LEDs being two examples already well on their way. In nanostructures, such as quantum dots, quantum effects greatly influence the transport. READ MORE

6. 5. Growth and characterization of Ge quantum dots on SiGe-based multilayer structures

   University essay from Institutionen för fysik, kemi och biologi

   Author : Andreas Frisk; [2009]
   Keywords : Ge dots; SiGe; Thermistor; IR-detector; Bolometer; intermixing; strain;

   Abstract : Thermistor material can be used to fabricate un-cooled IR detectors their figure of merit is the Temperature Coefficient of Resistance (TCR). Ge dots in Si can act as a thermistor material and they have a theoretical TCR higher than for SiGe layers but they suffer from intermixing of Si into the Ge dots. READ MORE