Sökning: "dephasing"

Visar resultat 1 - 5 av 16 avhandlingar innehållade ordet dephasing.

  1. 1. Experimental Studies of Quantum Dynamics and Coherent Control in Homonuclear Alkali Diatomic Molecules

    Författare :Bo Zhang; KTH; []
    Nyckelord :ultrafast laser spectroscopy; pump-probe technique; predissociation; wavepacket; spin-orbit interaction; coherent control; dephasing;

    Sammanfattning : The main theme covered in this thesis is experimentalstudies of quantum dynamics and coherent control in homonuclearalkali diatomic molecules by ultrafast laser spectroscopy iththe implementation of pump-probe techniques.A series of experiments have been performed on the Rb2molecules in a molecular beam as well as in a thermal oven. LÄS MER

  2. 2. Measurement Back-Action and Photon Detection in Microwave Quantum Optics

    Författare :Anton Frisk Kockum; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Parity Measurement; Quantum Measurement; Quantum Optics; Quantum Stochastic Calculus; Circuit QED; Photodetection; Transmon; Dephasing;

    Sammanfattning : In quantum optics, the interaction between atoms and photons is studied. In recent years, microwave quantum optics with superconducting circuits has emerged as an important tool for fundamental quantum optics experiments, and also as a promising way for implementing quantum computation. LÄS MER


    Författare :Juan Atalaya; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dephasing in Nanomechanical Resonators; Nonlinear Dynamics; Graphene Mechanics;

    Sammanfattning : I summarize the results of my research in the subjects of nonlinear mechanics of grapheneresonators, mass-loading induced dephasing in nanomechanical resonators and spintronicsbasedmesoscopic heat engines for cooling the fundamental flexural mode of a CNT resonator.This thesis consists of three parts. LÄS MER

  4. 4. Adiabatic Andreev Levels Under Irradiation - Coherent Dynamics and Dephasing

    Författare :Niklas I:son Lundin; Chalmers University of Technology; []
    Nyckelord :;

    Sammanfattning : A study of the Andreev level current through a weakly voltage-biased single-mode superconducting quantum point contact under microwave irradiation is presented. The applied microwave field induces resonant transitions between the current carrying Andreev states localized to the contact region, which results in an increase of the dc subgap current by several orders of magnitude. LÄS MER

  5. 5. Dynamics of optical and X-ray responses of molecules

    Författare :Alexander Baev; KTH; []
    Nyckelord :two-photon absorption; collisional dephasing; resonant photoemission;

    Sammanfattning : The aim of this licentiatethesis is to investigate by means of theoretical simulationsthe dynamics of light scattering by molecules, with specialemphasis on molecules in gas phase and in solutions.The first part of the thesisconcerns the two-photon absorption (TPA) process in the opticalwavelength region. LÄS MER