Essays about: "Torbjörn Lundberg"

Found 2 essays containing the words Torbjörn Lundberg.

1. 1. Finite temperature effects on decay rates in the real-time formalism

   University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

   Author : Torbjörn Lundberg; [2020]
   Keywords : finite; temperature; effect; decay; rate; real; imaginary; time; formalism; real-time; imaginary-time; two-body; neutral; pseudoscalar; scalar; charge; spin-1 2; fermions; thermal; quantum; field; theory; equilibrium; Physics and Astronomy;

   Abstract : This thesis work presents thermal decay rates for several reactions calculated within the framework of the real-time formalism. Processes considered are those of a neutral (pseudo)scalar decaying into two distinct (pseudo)scalars or into a fermion-antifermion pair. READ MORE

3. 2. Chaotic Properties of the Discretised Φ^4-potential

   University essay from Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

   Author : Torbjörn Lundberg; [2017]
   Keywords : Chaos; chaotic behavior; discretisation; discretization; Phi; phi4; phi^4; scalar potential; Hamiltonian system; Newtonian system; particle movement; trajectory; fractal; Physics and Astronomy;

   Abstract : Research has been conducted on integrable, Newtonian systems by B. Söderberg amongst others. Scientists uses the Hamiltonian energy landscape to simulate such systems by discretising the continuum. Non-integrable systems, however, show chaotic properties, when the Hamiltonian is not conserved along phase space trajectories. READ MORE