Sökning: "Lindblad Equation"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Lindblad Equation.

  1. 1. Hybrid Microwave Resonator-Nanoscale Conductor Systems

    Master-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Daniel Larsson Persson; [2023]
    Nyckelord :Circuit Quantum Electrodynamics; Open Quantum Systems; Gaussian States; Two-Mode Two-Photon Jaynes-Cummings Model; Jaynes-Cummings Model; Lyapunov Equation; Phase-Space Description; Duan Criterion; Entanglement; Light-Matter Interaction; Mean Field; Double Quantum Dot; Harmonic Oscillator; Two-Mode Squeezing; Symplectic Form; GKSL Equation; Lindblad Equation; Physics and Astronomy;

    Sammanfattning : Entanglement is a fundamental aspect of quantum computation and quantum information processes. In this work, we analyse the entanglement of two microwave resonators when connected to a semiconductor double quantum dot. LÄS MER

  3. 2. Open quantum systems

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Anton Granlund Gustafsson; [2023]
    Nyckelord :quantum physics; quantum mechanics; open quantum systems; Lindblad equation; density matrix theory; qubit;

    Sammanfattning : In this Bachelor thesis project, the Lindblad master equation is derived, both as the most general way of modeling interaction with an environment that lacks memory, and through microscopic derivations focused on assumptions about the way the system interacts with its environment (weak-coupling, Born-Markov and rotating wave approximations). It is then applied to a two-level system (qubit). LÄS MER

  4. 3. Quantum statistics of a three-level maser

    Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Andreas Evensen; [2022]
    Nyckelord :Maser; Laser; SSD-maser; Euler s method; Runge-Kutta method; Louvillian; Dissipator; Lindblad s master equation; Entropy; Thermodynamics; Coherent-state; Glauber-state; Python; Rabi-Oscillations; Occupation number of the photon mode; Density operator; Physics and Astronomy;

    Sammanfattning : Lasers and masers have numerous uses in today’s society. Improving our understanding of the underlying physics and its application is thus of great importance. LÄS MER

  5. 4. Signatures of topological phases in an open Kitaev chain

    Master-uppsats, KTH/Fysik

    Författare :Natalia Ermakova; [2021]
    Nyckelord :Kitaev chain; open quantum systems; Lindblad equation; topological quantum matter;

    Sammanfattning : Some physical systems exhibit topological properties in the form of topological invariants— features of the system that remain constant unless the system undergoessignificant changes i.e. changes that require closing the energy gap of the Hamiltonian.This work studies one example of a system with topological properties — a Kitaevchain. LÄS MER

  7. 5. Entanglement in a quantum heat engine

    Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Harald Öhrn; [2020]
    Nyckelord :Quantum physics; Entanglement; Quantum heat engine; Physics and Astronomy;

    Sammanfattning : In 2015 Jonatan Bohr Brask et al. showed that steady-state entanglement could be generated in two interacting qubits incoherently coupled to thermal baths of different temperatures [1]. LÄS MER