Department of Physics and Astronomy
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The Department of Physics and Astronomy works to advance scientific knowledge and innovation while educating the next generation of talented scientists. Our dedicated faculty supports this mission with cutting-edge research, unique programs, and a supportive learning environment.
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Item The Wave Packet (1998 Spring)(1998) University of Minnesota, Duluth. Department of PhysicsItem The Wave Packet (2000 Spring)(2000) University of Minnesota Duluth. Department of PhysicsItem The Wave Packet (2001 Spring)(2001) University of Minnesota Duluth. Department of PhysicsItem The Wave Packet (2002 Spring)(2002) University of Minnesota Duluth. Department of PhysicsItem The Wave Packet (2003 Spring)(2003) University of Minnesota Duluth. Department of PhysicsItem The Wave Packet (2004 Spring)(2004) University of Minnesota Duluth. Department of PhysicsItem The Wave Packet (2005 Spring)(2005) University of Minnesota Duluth. Department of PhysicsItem The Wave Packet (2006 Spring)(2006) University of Minnesota Duluth. Department of PhysicsItem Selective absorption of visible light by a plasmonic gold lattice(2021) Nixon, Matthew MSimulation, creation, and testing of metamaterial absorber utilizing plasmonic and metal-insulator-metal interactions to create selective absorption of light within the visible spectrum.Item Analysis of the Potential Hoag-type Galaxy WISEA J234255.19-354810.2(2022-07) Swanson, Alaina MRing galaxies are among the most perplexing phenomena we observe in space. Their formation has remained a topic of debate, especially since 1950 when Arthur Hoag discovered Hoag’s Object. Hoag-like objects are exceedingly rare and the ring galaxy WISEA J234255.19-354810.2 has the potential to be the 16th Hoag-type galaxy discovered. I performed two types of data analysis to obtain information about the galactic light profiles. From this analysis, I discovered a very faint bar structure within the core of the ring galaxy, which indicates that WISEA J234255.19-354810.2 is not a Hoag-type galaxy.Item Transition Radius Method(2023) Holte, Mark DSolving the 𝑅22 Ricci expression iteratively yields a way to define both a transition radius and a new expression for determining fundamental boson energies. This transition radius can be defined as a radius value where the three spatial dimension f(r) metric component is equal to the same higher dimensional metric component, and the benefit of this transition radius is that it can be used to determine the energy of fundamental boson types and fundamental particle types. This method fits a total of fifteen boson types including the W, Z, and X bosons. Also, letting a higher dimensional radius go to zero for an infinite number of spatial dimensions predicts an energy for a new boson type. The transition radius method seems to be a preferable way to resolve a part of the hierarchy problem because it fits fundamental particle energies, it yields a simple expression for boson energy, and it is derived from general relativity.Item Predicting Microfluidic Droplet Diameters in Glass Capillary Devices Using Machine Learning(2023-06) Holte, SerenaI have successfully generated a graphic user interface that predicts microfluidic droplet diameters from a neural network. The neural network inputs are fluid properties and geometries of 3D glass capillary devices. For water-in-oil single emulsions, the mean-squared error at the end of 100 epochs for training and validation converged to 7.2% and 7.4%, respectively. The deep machine learning model provides an alternative method of predicting droplet size without the need for rigorous theory. Moreover, the model can be altered to predict other microfluidic parameters or properties and could be extended to other fluids as well.Item A Review of Classical and Quantum Optical Trapping of Neutral Particles(2023-08-20) Franco, Jonathan WThe purpose of this report is to briefly explore the forces behind optical trapping of dielectric spheres and neutral particles. For this report, we will be examining two regimes. First, we consider larger dielectric particles classically, and then move briefly into individual atoms quantum mechanically.