Essays about: "Entropy."

Showing result 1 - 5 of 168 essays containing the word Entropy..

  1. 1. Automation and design in observational causal inference

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Mattias Tajik; [2022]
    Keywords : Causal Inference; Genetic Matching; Entropy Balancing; Propensity Score;

    Abstract : The use of automated procedures has recently become popular in the causal inference literature. Naive implementations of automatic procedures stand in contrast to the perspective advocated in Imbens and Rubin's Causal Inference. Imbens and Rubin suggest that researchers should make modelling decisions informed by subjective knowledge. READ MORE

  2. 2. Dynamics for the special class of quantum master equations

    University essay from Linnéuniversitetet/Institutionen för matematik (MA)

    Author : Locatelli Pietro; [2022]
    Keywords : superoperators; density matrices; von Neumann entropy; camel-like entropy; steady states; open quantum systems; dynamical semigroups; decoherence free subspaces;

    Abstract : The paper is an analysis of a special class of the master equations such that the Dissipation superoperator is L(ρ) = [M, [M, ρ]], where M is an hermitian andunitary operator and ρ a density matrix. It mainly investigates the dynamics ofρ and its properties such as boundness of the operators of the master equation,the eigenvalues of these operators, the purity of the states, the steady states. READ MORE

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

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

    Author : Andreas Evensen; [2022]
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 4. Lexical competition and predictive certainty in speech recognition: Modulations of pre-activation negativity amplitude by continuations, entropy and inhibition

    University essay from Lunds universitet/Masterprogram: Språk och språkvetenskap; Lunds universitet/Fonetik

    Author : Anna Hjortdal; [2022]
    Keywords : Speech perception; spoken word recognition; lexical competition; ERPs; PrAN.; Languages and Literatures;

    Abstract : A growing body of evidence suggests that speech recognition is facilitated by rapid activation of possible lexical candidates and subsequent competition and selection. An event-related potential (ERP) component 136-204 ms after word onset, the pre-activation negativity (PrAN), correlates with lexical competition. READ MORE

  5. 5. Polybius Square Ciphers

    University essay from Linnéuniversitetet/Institutionen för matematik (MA)

    Author : Xiangbo Kong; [2022]
    Keywords : Polybius Square Ciphers;

    Abstract : In this thesis, we will define Polybius Square Ciphers and explain howit used to encrypt plaintext. We will talk about Playfair, ADFGX andADFGVX. We will introduce how Shannon entropy works and its principalproperties. READ MORE