Essays about: "non-linear crystal"

Showing result 1 - 5 of 8 essays containing the words non-linear crystal.

  1. 1. Distortion and attenuation free gain-assisted Superluminal Propagtion in a Rare-Earth Doped Crystal

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Antonius Johannes Renders; [2023]
    Keywords : Fast Light; Superluminal Propagation; Negative group velocity; Rare earth; Physics and Astronomy;

    Abstract : A light pulse that travels through a narrow spectral window, i.e. a frequency range of low absorption, within a strongly absorbing frequency range will be delayed due to strong dispersion. READ MORE

  3. 2. Demonstrating quantum entanglement and Hong-Ou-Mandel effect, using type-II spontaneous parametric down conversion with C programming for data collection

    University essay from KTH/Fysik

    Author : Erik Svanberg; Johan Johannisson Lundquist; [2022]
    Keywords : Quantum entanglement; polarization; HOM; Hong-Ou-Mandel; indistinguishability; type-II SPDC; spontaneous parametric down conversion; non-linear crystal; beam splitter; indistinguishable photons; data collection in C;

    Abstract : Spontaneous parametric down conversion (SPDC) is used to generate quantum entangled photons through a non-linear crystal. The entanglement of photons is demonstrated by observing the effects of indistinguishability on photons, first through time and energy, then by polarization. The Hong-Ou-Mandel (HOM) effect was also demonstrated. READ MORE

  4. 3. Generating quantum entangled photons

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Stephan Nieto; Daniel Sanaee; [2021]
    Keywords : ;

    Abstract : In this project a laser setup was constructed, quantum entangled photons were generated and two different methods were used to show said entanglement. The entangled photons were generated through a process called spontaneous parametric down conversion (SPDC). READ MORE

  5. 4. A numerical investigation of Anderson localization in weakly interacting Bose gases

    University essay from KTH/Numerisk analys, NA

    Author : Crystal Ugarte; [2020]
    Keywords : Applied mathematics; finite elements; eigenvalue solver; eigenvalue problem; Bose-Einstein Codensate; Finita elementmetoden; tillämpad matematik; Bose-Einstein kondensat; egenvärdesalgoritm; egenvärdesproblem;

    Abstract : The ground state of a quantum system is the minimizer of the total energy of that system. The aim of this thesis is to present and numerically solve the Gross-Pitaevskii eigenvalue problem (GPE) as a physical model for the formation of ground states of dilute Bose gases at ultra-low temperatures in a disordered potential. READ MORE

  6. 5. Machine Learning of Crystal Formation Energies with Novel Structural Descriptors

    University essay from Linköpings universitet/Teoretisk Fysik

    Author : Claudia Bratu; [2017]
    Keywords : Machine learning; crystal; formation energy; kernel ridge regression; KRR; representation; descriptor; feature vector representation;

    Abstract : To assist technology advancements, it is important to continue the search for new materials. The stability of a crystal structures is closely connected to its formation energy. By calculating the formation energies of theoretical crystal structures it is possible to find new stable materials. READ MORE