7 citations · 15 across the 5 of their papers we have counts for
7 papers
Determination of the characteristic directions of lossless linear optical elements
Hanno Hammer
We show that the problem of finding the primary and secondary characteristic directions of a linear lossless optical element can be reformulated in terms of an eigenvalue problem r…
Collective states in highly symmetric atomic configurations, and single-photon traps
Hanno Hammer
Abbreviated Abstract: We study correlated states in a circular and linear-chain configuration of identical two-level atoms containing the energy of a single quasi-resonant photon i…
Collective excitations in circular atomic configurations, and single-photon traps
Hanno Hammer
Correlated excitations in a plane circular configuration of identical atoms with parallel dipole moments are investigated. The collective energy eigenstates, their level shifts and…
Application of Sharafutdinov's Ray Transform in Integrated Photoelasticity
H. Hammer, B. Lionheart
We explain the main concepts centered around Sharafutdinov's ray transform, its kernel, and the extent to which it can be inverted. It is shown how the ray transform emerges natura…
Characteristic Parameters in Integrated Photoelasticity: An Application of Poincare's Equivalence Theorem
Hanno Hammer
The Poincare Equivalence Theorem states that any optical element which contains no absorbing components can be replaced by an equivalent optical model which consists of one linear…
Spacetime Topology, Conserved Charges, and the Splitting of Classical Multiplets
Hanno Hammer
We examine consequences of non-trivial topology in background spacetimes and super-spacetimes: It is shown how the semi-invariance of a brane Lagrangian under supertranslations giv…