3 papers
quant-ph2020
Routed quantum circuits
Augustin Vanrietvelde, Hlér Kristjánsson, Jonathan Barrett
We argue that the quantum-theoretical structures studied in several recent lines of research cannot be adequately described within the standard framework of quantum circuits. This…
gr-qc2018
How to switch between relational quantum clocks
Philipp A Hoehn, Augustin Vanrietvelde
Every clock is a physical system and thereby ultimately quantum. A naturally arising question is how to describe time evolution relative to quantum clocks and, specifically, how th…
quant-ph2018
A change of perspective: switching quantum reference frames via a perspective-neutral framework
Augustin Vanrietvelde, Philipp A Hoehn, Flaminia Giacomini +1
Treating reference frames fundamentally as quantum systems is inevitable in quantum gravity and also in quantum foundations once considering laboratories as physical systems. Both…