Matches in SemOpenAlex for { <https://semopenalex.org/work/W2892389740> ?p ?o ?g. }
- W2892389740 abstract "Quantum entanglement is a key physical resource in quantum information processing that allows for performing basic quantum tasks such as teleportation and quantum key distribution, which are impossible in the classical world. Ever since the rise of quantum information theory, it has been an open problem to quantify entanglement in an information-theoretically meaningful way. In particular, every previously defined entanglement measure bearing a precise information-theoretic meaning is not known to be efficiently computable, or if it is efficiently computable, then it is not known to have a precise information-theoretic meaning. In this Letter, we meet this challenge by introducing an entanglement measure that has a precise information-theoretic meaning as the exact cost required to prepare an entangled state when two distant parties are allowed to perform quantum operations that completely preserve the positivity of the partial transpose. Additionally, this entanglement measure is efficiently computable by means of a semidefinite program, and it bears a number of useful properties such as additivity and faithfulness. Our results bring key insights into the fundamental entanglement structure of arbitrary quantum states, and they can be used directly to assess and quantify the entanglement produced in quantum-physical experiments." @default.
- W2892389740 created "2018-10-05" @default.
- W2892389740 creator A5027813765 @default.
- W2892389740 creator A5037632925 @default.
- W2892389740 date "2020-07-24" @default.
- W2892389740 modified "2023-10-16" @default.
- W2892389740 title "Cost of Quantum Entanglement Simplified" @default.
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- W2892389740 doi "https://doi.org/10.1103/physrevlett.125.040502" @default.
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