Zobrazeno 1 - 10
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pro vyhledávání: '"Nikolai Wyderka"'
Autor:
Nikolai Wyderka, Andreas Ketterer
Publikováno v:
PRX Quantum, Vol 4, Iss 2, p 020325 (2023)
The generalized Bloch decomposition of a bipartite quantum state gives rise to a correlation matrix whose singular values provide rich information about nonlocal properties of the state, such as the dimensionality of entanglement. While some entangle
Externí odkaz:
https://doaj.org/article/9344740594954977a1c304f8a6909e18
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
The quantum marginal problem interrogates the existence of a global pure quantum state with some given marginals. Here, the authors reformulate it as an optimisation problem, and specifically as the existence of a two-party separable state with addit
Externí odkaz:
https://doaj.org/article/25a112ec79464b4da7e7a059124c7855
Publikováno v:
Quantum, Vol 4, p 325 (2020)
We present in detail a statistical approach for the reference-frame-independent detection and characterization of multipartite entanglement based on moments of randomly measured correlation functions. We start by discussing how the corresponding mome
Externí odkaz:
https://doaj.org/article/85192f73045248d58b213ff0888774d6
Robustness measures are increasingly prominent resource quantifiers that have been introduced for quantum resource theories such as entanglement and coherence. Despite the generality of these measures, their usefulness is hindered by the fact that so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58611c6b895efe6cdf60becebf711eca
http://arxiv.org/abs/2212.06654
http://arxiv.org/abs/2212.06654
Autor:
Nikolai Wyderka, Andreas Ketterer
The generalized Bloch decomposition of a bipartite quantum state gives rise to a correlation matrix whose singular values provide rich information about non-local properties of the state, such as the dimensionality of entanglement. While some entangl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce01b1e37008c82f7d5c358d9b4d80d9
http://arxiv.org/abs/2211.09610
http://arxiv.org/abs/2211.09610
Recent progress in quantum optics has led to setups that are able to prepare high-dimensional quantum states for quantum information processing tasks. As such, it is of importance to benchmark the states generated by these setups in terms of their qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0aedade851f341e7dd2f6ad9e3ecd7b
http://arxiv.org/abs/2210.05272
http://arxiv.org/abs/2210.05272
Publikováno v:
Physical Review Letters
If only limited control over a multiparticle quantum system is available, a viable method to characterize correlations is to perform random measurements and consider the moments of the resulting probability distribution. We present systematic methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d564fcf532c32628732010f5b1735e9d
http://arxiv.org/abs/2010.08372
http://arxiv.org/abs/2010.08372
We consider statistical methods based on finite samples of locally randomized measurements in order to certify different degrees of multiparticle entanglement in intermediate-scale quantum systems. We first introduce hierarchies of multi-qubit criter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b944ec3c7e063bafef5ab998379d8055
Publikováno v:
Physical Review A. 99
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db89e72bce07f883b3459d3c2fa8cf0d
https://doi.org/10.1103/physreva.99.049904
https://doi.org/10.1103/physreva.99.049904
Publikováno v:
Physical Review Letters
The experimental detection of multipartite entanglement usually requires a number of appropriately chosen local quantum measurements which are aligned with respect to a previously shared common reference frame. The latter, however, can be a challengi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbe4e7eac782087f2be42e02997e152e
https://doi.org/10.1103/physrevlett.122.120505
https://doi.org/10.1103/physrevlett.122.120505