Sökning: "Hannes Meier"

Hittade 3 avhandlingar innehållade orden Hannes Meier.

  1. 1. Phase transitions in novel superfluids and systems with correlated disorder

    Författare :Hannes Meier; Mats Wallin; Asle Sudbø; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; condensed matter physics; phase transitions; critical phenomena; spin models; quantum phase transitions; quantum fluids; superfluidity; superconductivity; disordered systems; Bose glass; dirty bosons; vortex pinning; statistical mechanics; Monte Carlo simulation; Wolff algorithm; classical worm algorithm; Wang-Landau algorithm; Fysik; Physics;

    Sammanfattning : Condensed matter systems undergoing phase transitions rarely allow exact solutions. The presence of disorder renders the situation  even worse but collective Monte Carlo methods and parallel algorithms allow numerical descriptions. LÄS MER

  3. 2. Superfluid Phase Transitions in Disordered Systems

    Författare :Hannes Meier; Mats Wallin Wallin; Peter Olsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis presents results from large scale Monte Carlo simulations of systems subject to a superfluid phase transition in the presence of disorder. The simulations are performed by state-of-the-art, collective Monte Carlo algorithms treating phase degrees of freedom in effective models with amplitude fluctuations integrated out. LÄS MER

  4. 3. Immunological aspects on prognosis in resectable cholangiocellular cancer

    Författare :Hannes Jansson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: Biliary tract cholangiocellular cancers, cholangiocarcinoma (CCA) and gallbladder cancer (GBC), are malignancies with poor prognosis. Even after resection surgery with curative intent, a majority of patients suffer recurrence, and median overall survival (OS) remains limited to approximately three years. LÄS MER