On the quasi-position representation in theories with a minimal length
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DOI: 10.1088/1361-6382/abe758
Abstract: Quantum mechanical models with a minimal length are often described by modifying the commutation relation between position and momentum. Although this represents a small complication when described in momentum space, at least formally, the (quasi-)position… read more here.
Keywords: position representation; minimal length; position; quasi position ... See more keywords
Position representation of effective electron-electron interactions in solids
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DOI: 10.1103/physrevb.99.195136
Abstract: An essential ingredient in many model Hamiltonians, such as the Hubbard model, is the effective electron-electron interaction U, which enters as matrix elements in some localized basis. These matrix elements provide the necessary information in… read more here.
Keywords: interaction; electron; model; electron electron ... See more keywords