Lower Bounds for Testing Complete Positivity and Quantum Separability
Lower Bounds for Testing Complete Positivity and Quantum Separability
复制标题
测试完全正性和量子可分离性的下限
DOI:
10.1007/978-3-030-61792-9_30
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
O'Donnell, Ryan
中科院分区:
文献类型:
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作者:
Bădescu, Costin;O'Donnell, Ryan
In this work we are interested in the problem of testing quantum entanglement. More specifically, we study theseparabilityproblem in quantum property testing, where one is givenncopies of an unknown mixed quantum stateon, and one wants to test whetheris separable or-far from all separable states in trace distance. We prove thatcopies are necessary to test separability, assumingis not too small, viz..We also study completely positive distributions on the grid, as a classical analogue of separable states. We analogously prove thatsamples from an unknown distributionpare necessary to decide whetherpis completely positive or-far from all completely positive distributions in total variation distance.
DOI:
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发表时间:
2013
期刊:
影响因子:
--
作者:
M. Skala
通讯作者:
M. Skala