Coherence transformations in single qubit systems
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-13687-4
Abstract: We investigate the single qubit transformations under several typical coherence-free operations, such as, incoherent operation (IO), strictly incoherent operation (SIO), physically incoherent operation (PIO), and coherence-preserving operation (CPO). Quantitative connection has been built between IO… read more here.
Keywords: single qubit; coherence transformations; operation; qubit ... See more keywords
Irreducible Magic Sets for n-Qubit Systems.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.200401
Abstract: Magic sets of observables are minimal structures that capture quantum state-independent advantage for systems of n≥2 qubits and are, therefore, fundamental tools for investigating the interface between classical and quantum physics. A theorem by Arkhipov… read more here.
Keywords: magic sets; qubit magic; irreducible magic; qubit systems ... See more keywords
On the Quantumness of Multiparameter Estimation Problems for Qubit Systems
Sign Up to like & getrecommendations! Published in 2020 at "Entropy"
DOI: 10.3390/e22111197
Abstract: The estimation of more than one parameter in quantum mechanics is a fundamental problem with relevant practical applications. In fact, the ultimate limits in the achievable estimation precision are ultimately linked with the non-commutativity of… read more here.
Keywords: quantum; estimation; estimation problems; qubit systems ... See more keywords