• Publications
  • Influence
Bogoliubov Fermi Surfaces in Superconductors with Broken Time-Reversal Symmetry.
It is commonly believed that, in the absence of disorder or an external magnetic field, there are three possible types of superconducting excitation gaps: The gap is nodeless, it has point nodes, orExpand
Tunneling through molecules and quantum dots: Master-equation approaches
An important class of approaches to the description of electronic transport through molecules and quantum dots is based on the master equation. We discuss various formalisms for deriving a masterExpand
Types of topological surface states in nodal noncentrosymmetric superconductors
origin appear at their surface. We show that the presence of certain inversion-type lattice symmetries can give rise to additional topological features of the gap nodes, resulting in surface statesExpand
Noise spectra of ac-driven quantum dots: Floquet master-equation approach
We study the transport properties of a quantum dot driven by either a rotating magnetic field or an ac gate voltage using the Floquet master-equation approach. Both types of ac driving lead toExpand
Spin amplification, reading, and writing in transport through anisotropic magnetic molecules
Inelastic transport through a single magnetic molecule weakly coupled to metallic leads is studied theoretically. We consider dynamical processes that are relevant for writing, storing, and readingExpand
Response theory for time-resolved second-harmonic generation and two-photon photoemission
A unified response theory for the time-resolved nonlinear light generation and two-photon photoemission (2PPE) from metal surfaces is presented. The theory allows one to describe the dependence ofExpand
Theory for transport through a single magnetic molecule: Endohedral N @ C 60
We consider transport through a single $\mathrm{N}@{\mathrm{C}}_{60}$ molecule, weakly coupled to metallic leads. Employing a density-matrix formalism we derive rate equations for the occupationExpand
Time-convolutionless master equation for quantum dots: Perturbative expansion to arbitrary order
convolutionless generator all divergences cancel order by order. The time-convolutionless and T-matrix master equations are contrasted to the Nakajima-Zwanzig version. The absence of divergences inExpand
Disorder effects in diluted magnetic semiconductors
  • C. Timm
  • Chemistry, Physics
  • 3 November 2003
Diluted magnetic semiconductors (DMS) are promising materials for technological applications as well as interesting from the basic-physics point of view. It has become clear that disorder plays aExpand
Theory of magnetism and triplet superconductivity in LiFeAs
Superconducting pnictides are widely found to feature spin-singlet pairing in the vicinity of an antiferromagnetic phase, for which nesting between electron and hole Fermi surfaces is crucial. LiFeAsExpand