11 citations · 61 across the 12 of their papers we have counts for
12 papers
Quantization of Yang--Mills metrics on holomorphic vector bundles
Andreas Andersson
We investigate quantization properties of Hermitian metrics on holomorphic vector bundles over homogeneous compact Kähler manifolds. This allows us to study operators on Hilbert fu…
Hodge classes of Chern character forms on compact Kähler manifolds
Andreas Andersson
In this paper we show that every rational cohomology class of type on a compact Kähler manifold can be representated as a differential -form given by an explicit for…
Electromagnetism in terms of quantum measurements
Andreas Andersson
We consider the question whether electromagnetism can be derived from quantum physics of measurements. It turns out that this is possible, both for quantum and classical electromag…
Detailed balance as a quantum-group symmetry of Kraus operators
Andreas Andersson
A unital completely positive map governing the time evolution of a quantum system is usually called a quantum channel, and it can be represented by a tuple of operators which are t…
Dequantization via quantum channels
Andreas Andersson
For a unital completely positive map ("quantum channel") governing the time propagation of a quantum system, the Stinespring representation gives an enlarged system evolving un…
Berezin quantization of noncommutative projective varieties
Andreas Andersson
We use operator algebras and operator theory to obtain new result concerning Berezin quantization of compact Kähler manifolds. Our main tool is the notion of subproduct systems of…
Modeling and simulations of quantum phase slips in ultrathin superconducting wires
Andreas Andersson, Jack Lidmar
We study quantum phase slips (QPS) in ultrathin superconducting wires. Starting from an effective one-dimensional microscopic model, which includes electromagnetic fluctuations, we…
Index pairings for -actions and Rieffel deformations
Andreas Andersson
With an action of on a -algebra and a skew-symmetric matrix one can consider the Rieffel deformation of , which is a -alge…
Operator Deformations in Quantum Measurement Theory
Andreas Andersson
We describe rigorous quantum measurement theory in the Heisenberg picture by applying operator deformation techniques previously used in noncommutative quantum field theory. This e…
Scaling, Finite Size Effects, and Crossovers of the Resistivity and Current-Voltage Characteristics in Two-Dimensional Superconductors
Andreas Andersson, Jack Lidmar
We revisit the scaling properties of the resistivity and the current-voltage characteristics at and below the Berezinskii-Kosterlitz-Thouless transition, both in zero and nonzero m…
Influence of vortices and phase fluctuations on thermoelectric transport properties of superconductors in a magnetic field
Andreas Andersson, Jack Lidmar
We study heat transport and thermoelectric effects in two-dimensional superconductors in a magnetic field. These are modeled as granular Josephson-junction arrays, forming either r…
Anomalous Nernst effect and heat transport by vortex vacancies in granular superconductors
Andreas Andersson, Jack Lidmar
We study the Nernst effect due to vortex motion in two-dimensional granular superconductors using simulations with Langevin or resistively shunted Josephson-junction dynamics. In p…