211 citations · 254 across the 2 of their papers we have counts for
7 papers
QuantumOptics.jl: A Julia framework for simulating open quantum systems
Sebastian Krämer, David Plankensteiner, Laurin Ostermann +1
We present an open source computational framework geared towards the efficient numerical investigation of open quantum systems written in the Julia programming language. Built excl…
A Geometric Description of Feasible Singular Values in the Tensor Train Format
Sebastian Krämer
Tree tensor networks such as the tensor train format are a common tool for high dimensional problems. The associated multivariate rank and accordant tuples of singular values are b…
Stable ALS Approximation in the TT-Format for Rank-Adaptive Tensor Completion
Lars Grasedyck, Sebastian Krämer
Low rank tensor completion is a highly ill-posed inverse problem, particularly when the data model is not accurate, and some sort of regularization is required in order to solve it…
Quantum annealing with ultracold atoms in a multimode optical resonator
Valentin Torggler, Sebastian Krämer, Helmut Ritsch
A dilutely filled -site optical lattice near zero temperature within a high- multimode cavity can be mapped to a spin ensemble with tailorable interactions at all length scal…
Alternating Least Squares Tensor Completion in The TT-Format
Lars Grasedyck, Melanie Kluge, Sebastian Krämer
We consider the problem of fitting a low rank tensor , , to a given set of data points $\{M_i\in\mathbb{R}\mid i\in…
Optimized geometries for future generation optical lattice clocks
Sebastian Krämer, Laurin Ostermann, Helmut Ritsch
Atoms deeply trapped in magic wavelength optical lattices provide a Doppler- and collision-free dense ensemble of quantum emitters ideal for high precision spectroscopy. Thus, they…