activity
20072026
most citedNon-Markovian dynamics of a single electron spin coupled to a nuclear spin bath

76 citations · 234 across the 19 of their papers we have counts for

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quant-ph2025

Calculating the Projective Norm of higher-order tensors using a gradient descent algorithm

Aaditya Rudra, Maria Anastasia Jivulescu

Projective Norms are a class of tensor norms that map on the input and output spaces. These norms are useful for providing a measure of entanglement. Calculating the projective nor…

quant-ph2022★ 8 cited

Order preserving maps on quantum measurements

Teiko Heinosaari, Maria Anastasia Jivulescu, Ion Nechita

We study the partially ordered set of equivalence classes of quantum measurements endowed with the post-processing partial order. The post-processing order is fundamental as it ena…

quant-ph2020

Multipartite entanglement detection via projective tensor norms

Maria Anastasia Jivulescu, Cécilia Lancien, Ion Nechita

We introduce and study a class of entanglement criteria based on the idea of applying local contractions to an input multipartite state, and then computing the projective tensor no…

quant-ph2019★ 16 cited

Random positive operator valued measures

Teiko Heinosaari, Maria Anastasia Jivulescu, Ion Nechita

We introduce several notions of random positive operator valued measures (POVMs), and we prove that some of them are equivalent. We then study statistical properties of the effect…

quant-ph2017★ 18 cited

Absolutely separating quantum maps and channels

Sergey N. Filippov, Kamil Yu. Magadov, Maria Anastasia Jivulescu

Absolutely separable states remain separable under arbitrary unitary transformations . By example of a three qubit system we show that in multipartite scen…

quant-ph2014★ 15 cited

Positive reduction from spectra

Maria Anastasia Jivulescu, Nicolae Lupa, Ion Nechita +1

We study the problem of whether all bipartite quantum states having a prescribed spectrum remain positive under the reduction map applied to one subsystem. We provide necessary and…