Publications (14)
Coronal Heating as Determined by the Solar Flare Frequency Distribution Obtained by Aggregating Case Studies
James Paul Mason, Alexandra Werth, Colin G. West +999
Flare frequency distributions represent a key approach to addressing one of the largest problems in solar and stellar physics: determining the mechanism that counter-intuitively he…
Dimensionally hybrid Green's functions and density of states for interfaces
R. Dick
The energy dependent Green's function for an interface Hamiltonian which interpolates between two and three dimensions can be calculated explicitly. This yields an expression for t…
Superstrings and dark matter
R. Dick, N. Eschrich, M. Gaul
We point out that the spectrum and interactions of light states of the heterotic string indicate a string scale close to the GUT scale, and a mass generating scale for the gravitat…
Snowmass2021 Cosmic Frontier: The landscape of low-threshold dark matter direct detection in the next decade
Rouven Essig, Graham K. Giovanetti, Noah Kurinsky +90
The search for particle-like dark matter with meV-to-GeV masses has developed rapidly in the past few years. We summarize the science case for these searches, the recent progress,…
Enhanced Edelstein effect and interdimensional effects in an electron gas with Rashba spin-orbit coupling interface
A. C. Zulkoskey, R. Dick, K. Tanaka
We examine the bound-state and free-state contributions to the density of states in a three-dimensional electron gas with a two-dimensional interface with Rashba spin-orbit couplin…
A photon mass on the brane
R. Dick, D. M. E. McArthur
We discuss the impact of a bulk photon mass in a Dvali-Gabadadze-Porrati type brane model with Maxwell terms both on the brane and in the bulk, as proposed by Dvali, Gabadadze and…
Ultrahigh energy cosmic rays from dark matter annihilation
R. Dick, P. Blasi, E. W. Kolb
Annihilation of clumped superheavy dark matter provides an interesting explanation for the origin of ultrahigh energy cosmic rays. The predicted anisotropy signal provides a unique…
Ultrahigh energy cosmic rays from collisional annihilation revisited
R. Dick, K. M. Hopp, K. E. Wunderle
We re-examine collisional annihilation of superheavy dark matter particles in dark matter density spikes in the galactic halo as a possible source of ultrahigh energy cosmic rays.…
Dimensional Effects on the Density of States in Systems with Quasi-Relativistic Dispersion Relations and Potential Wells
A. Pokraka, R. Dick
Motivated by the recent discoveries of materials with quasi-relativistic dispersion relations, we determine densities of states in materials with low dimensional substructures and…
Variation of the fine structure constant in QSO spectra from coherent dark matter oscillations
M. G. Barnett, R. Dick, K. E. Wunderle
We consider the problem of the evolution of the fine structure coefficient alpha under the assumption that the scalar field coupling to the Maxwell term satisfies the condition mt>…
Radiation pressure on a dielectric boundary: was Poynting wrong?
A. Hirose, R. Dick
When a plane electromagnetic wave in air falls on a flat dielectric boundary, the dielectric body is pulled toward the air as predicted by Poynting a century ago. According to Noet…
Cosmological implications of a light dilaton
R. Dick, M. Gaul
Supersymmetric Peccei-Quinn symmetry and string theory predict a complex scalar field comprising a dilaton and an axion. These fields are massless at high energies, but it is known…
Superheavy dark matter and ultrahigh energy cosmic rays
R. Dick, K. M. Hopp, K. E. Wunderle
The phase of inflationary expansion in the early universe produces superheavy relics in a mass window between 10^{12} GeV and 10^{14} GeV. Decay or annihilation of these superheavy…
Hamiltonians and Green's functions which interpolate between two and three dimensions
R. Dick
I propose to use Hamiltonians which contain two-dimensional and three-dimensional kinetic terms for the description of two-dimensional systems in physics. As a model system the evo…