6 papers
Characterising extremal decoherence by quantum measurement incompatibility
Daniel McNulty, William Townsend, Jukka Kiukas
Decoherence, when viewed in the Heisenberg picture, can turn incompatible measurements into jointly measurable ones. This provides an observable-level description of emergent class…
Asymptotic statistical theory of irreducible quantum Markov chains
Federico Girotti, Jukka Kiukas, MÄdÄlin GuÅ£Ä
In this paper we investigate the asymptotic statistical theory of irreducible quantum Markov chains, focusing on identifiability properties and asymptotic convergence of associated…
Generalised contextuality of continuous variable quantum theory can be revealed with a single projective measurement
Pauli Jokinen, Mirjam Weilenmann, Martin Plávala +3
Generalized contextuality is a possible indicator of non-classical behaviour in quantum information theory. In finite-dimensional systems, this is justified by the fact that noncon…
Characterizing Fisher information of quantum measurement
Rakesh Saini, Jukka Kiukas, Daniel Burgarth +1
Informationally complete measurements form the foundation of universal quantum state reconstruction, while quantum parameter estimation is based on the local structure of the manif…
Completeness Stability of Quantum Measurements
Rakesh Saini, Jukka Kiukas, Daniel Burgarth +1
We introduce a resource monotone, the completeness stability, to quantify the quality of quantum measurements within a resource-theoretic framework. By viewing a quantum measuremen…
Fisher information from quantum many-particle arrival time measurements
Jukka Kiukas, Andreas Ruschhaupt
We formulate a quantum arrival time measurement process for a Bosonic many-particle system, with the aim of extracting statistical information on single-particle properties. The ar…