Essays about: "Oppenheimer"
Showing result 1 - 5 of 8 essays containing the word Oppenheimer.
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1. Classical motion in synthetic monopole fields
University essay from Uppsala universitet/MaterialteoriAbstract : In the Born-Oppenheimer approximation for a quantum system the emergent synthetic magnetic field can be seen as generated by monopoles at points of degeneracy, in full analogue to the synthetic fields generating the geometric phase of adiabatically evolving quantum systems. The plausibility of using these synthetic magnetic monopoles as a means to study magnetic monopole dynamics in the absence of fundamental magnetic monopoles has been explored. READ MORE
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2. Linear-scaling Quantum Molecular Dynamics for Reactive Systems
University essay from Uppsala universitet/Institutionen för informationsteknologiAbstract : The purpose of this thesis is to demonstrate linear-scaling, energy stable, propagation of the electronic degrees of freedom in finite temperature ExtendedLagrangian Born-Oppenheimer Molecular Dynamics for reactive systems in aself-consistent charge density-functional tight-binding formulation. The inverse Jacobian kernel matrix in the electronic equation of motion is approximated using alow-rank combination of directional derivatives of the ground state residual function. READ MORE
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3. A Tension between the Early and Late Universe: Could Our Underdense Cosmic Neighbourhood Provide an Explanation?
University essay from Uppsala universitet/Institutionen för fysik och astronomiAbstract : In recent years, the increasingly precise constraints on the value of the Hubble constant, H0, have highlighted a discrepancy between the results arising from early-time and late-time measurements. A potential solution to this so-called Hubble tension is the hypothesis that we reside in a cosmic void, i.e. READ MORE
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4. Spherically Symmetric Gravitational Collapse
University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisationAbstract : This thesis presents a derivation of the equation of motion of particles in a dust star, as it undergoes collapse. This is done by finding exact solutions to the Einstein field equations. We follow the original work by Oppenheimer and Snyder, starting from the general spherically symmetric metric in comoving coordinates. READ MORE
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5. The Secret Ingredients to Moral Philosophy: Blood, Sweat, and Tears : On bad enough worst-case scenarios in experimental approximations of John Rawls' Original Position
University essay from Uppsala universitet/Statsvetenskapliga institutionenAbstract : This paper approximates the study of a natural experiment to John Rawls’ thought experiment ‘the original position’ (OP). It argues that laboratory experiments have been unsuccessful in making legitimate approximations of the OP because of their inability to present convincing worst-case scenarios. READ MORE
