Essays about: "phys"

Showing result 1 - 5 of 11 essays containing the word phys.

1. 1. Cost Efficient Interpolation of Potential Energy Surfaces for Quantum Dynamics

   University essay from KTH/Matematik (Avd.)

   Author : Albin Persson; [2021]
   Keywords : ;

   Abstract : In calculating potential energy surfaces (PES) in quantum chemistry interpolation methods are sometimes used to get a sufficiently approximated surface. Kowalewski, Larsson and Heryudono (J Chem Phys, 148(8):084104) has developed an adaptive interpolation method to approximate a PES by polyharmonic splines interpolation. READ MORE

3. 2. Entanglement in a quantum heat engine

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

   Author : Harald Öhrn; [2020]
   Keywords : Quantum physics; Entanglement; Quantum heat engine; Physics and Astronomy;

   Abstract : In 2015 Jonatan Bohr Brask et al. showed that steady-state entanglement could be generated in two interacting qubits incoherently coupled to thermal baths of different temperatures [1]. READ MORE

4. 3. Interscale transport of Reynolds stresses in wall-bounded flows

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Gioele Ferrante; Andres Morfin; [2019]
   Keywords : Reynolds Stress; Zero-Pressure Gradient Turbulent Boundary Layer; Turbulent Couette Flow; Inverse Interscale Transport; Energy Cascase; Wall-bounded Flows; Direct Numerical Simulation; Large Eddy Simulation.;

   Abstract : Couette, pipe, channel, and zero-pressure gradient (ZPG) turbulent boundary layer (TBL) flows have classically been considered as canonical wall-bounded turbulent flows since their near-wall behavior is generally considered to be universal, i.e. invariant of the flow case and the Reynolds number. READ MORE

5. 4. Mapping DFT to effective Hamiltonians

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

   Author : Paul André; [2019]
   Keywords : DFT; Hamiltonians; Nuclear; Physics; Structure; Technology and Engineering;

   Abstract : This thesis proposes a new effective Hamiltonian to represent the interactions taking place in the atomic nucleus. This estimated Hamiltonian is analogous to the Pairing-Plus-Quadrupole model and this work is focused exclusively on the quadrupole part, with the aim of describing nuclear structure in a computationally efficient way. READ MORE

6. 5. End-of-life scenarios for bioplastic food and drinking packages : a study of Swedish bioplastic waste disposal habitsand environmental impacts

   University essay from SLU/Department of Molecular Sciences

   Author : Tilda Hansson; [2018]
   Keywords : bioplastic; biodegradable plastic; compostable plastic; biobased plastic; PLA; Bio-PET; consumer;

   Abstract : The aim of this study was to investigate real end-of-life scenarios for some of the most common bioplastics, such as PLA and Bio-PET, for food and drinking packages in Sweden and to evaluate some of the potential environmental consequences of these scenarios. Life Cycle Analysis often evaluate intended end-of-life scenarios for bio-plastic products, but this study used an explorative research method, gathering infor-mation of the conduction and habits of bioplastics to evaluate if these scenarios were the ones occurring. READ MORE