112 citations
- Ames National LaboratoryUS2 papers
- Duke UniversityUS2 papers
- Iowa State UniversityUS2 papers
- Laboratoire Paul PainlevéFR2 papers
- University of MissouriUS2 papers
- Australian National UniversityAU1 paper
- Clarkson UniversityUS1 paper
- Dalhousie UniversityCA1 paper
- École Polytechnique Fédérale de LausanneCH1 paper
- Heidenhain (Germany)DE1 paper
- Liceo scientifico statale Ulisse Dini1 paper
- Niagara UniversityUS1 paper
9 papers
Percolation quantum phase transitions in diluted magnets
Thomas Vojta, Joerg Schmalian
We show that the interplay of geometric criticality and quantum fluctuations leads to a novel universality class for the percolation quantum phase transition in diluted magnets. Al…
Chaotic Dynamics of a Free Particle Interacting Linearly with a Harmonic Oscillator
Stephan De Bievre, Paul E. Parris, Alex A. Silvius
We study the closed Hamiltonian dynamics of a free particle moving on a ring, over one section of which it interacts linearly with a single harmonic oscillator. On the basis of num…
Adiabatic-Nonadiabatic Transition in the Diffusive Hamiltonian Dynamics of a Classical Holstein Polaron
Alex A. Silvius, Paul E. Parris, Stephan De Bievre
We study the Hamiltonian dynamics of a free particle injected onto a chain containing a periodic array of harmonic oscillators in thermal equilibrium. The particle interacts locall…
Critical behavior and Griffiths effects in the disordered contact process
Thomas Vojta, Mark Dickison
We study the nonequilibrium phase transition in the one-dimensional contact process with quenched spatial disorder by means of large-scale Monte-Carlo simulations for times up to $…
Superfluidity in the Solar Interior: Implications for Solar Eruptions and Climate
O. Manuel, B. W. Ninham, S. E. Friberg
Efforts to understand unusual weather or abrupt changes in climate have been plagued by deficiencies of the standard solar model (SSM). While it assumes that our primary source of…
Trace Formulas and Borg-Type Theorems for Matrix-Valued Jacobi and Dirac Finite Difference Operators
Steve Clark, Fritz Gesztesy, Walter Renger
Borg-type uniqueness theorems for matrix-valued Jacobi operators H and supersymmetric Dirac difference operators D are proved. More precisely, assuming reflectionless matrix coeffi…