3 papers
gr-qc2026
Impossibility of superluminal signalling rules out causal loops in conical spacetimes
Maarten Grothus, V. Vilasini
In PRL 129, 110401 it was shown that it is theoretically possible to have operationally detectable causal loops without violating the principle of no superluminal signalling (NSS)…
quant-ph2025
Routing Quantum Control of Causal Order
Maarten Grothus, Alastair A. Abbott, Augustin Vanrietvelde +1
In recent years, various frameworks have been proposed for the study of quantum processes with indefinite causal order. In particular, quantum circuits with quantum control of caus…
cond-mat.str-el2021
Spin-orbit coupling in the kagome lattice with flux and time-reversal symmetry
Irakli Titvinidze, Julian Legendre, Maarten Grothus +3
We study the topological properties of a spin-orbit coupled Hofstadter model on the Kagome lattice. The model is time-reversal invariant and realizes a topological i…