Abstract
For two parties, Alice (\(A\)) and Bob (\(B\)), the state of the total quantum system can have product form: \(\left| \Psi \right. \rangle =\left| a\right. \rangle \otimes \left| b\right. \rangle \!,\) where the states \(\left| a\right. \rangle \) and \(\left| b\right. \rangle \) are elements of the corresponding local Hilbert spaces \(\mathcal{H}_{A}\) and \(\mathcal{H}_{B}\).
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Notes
- 1.
Sometimes we write \(\left| a\right. \rangle \left| b\right. \rangle \) or \(\left| ab\right. \rangle \) instead of \(\left| a\right. \rangle \otimes \left| b\right. \rangle \).
- 2.
See also [4] for a formal definition.
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Streltsov, A. (2015). Quantum Entanglement. In: Quantum Correlations Beyond Entanglement. SpringerBriefs in Physics. Springer, Cham. https://doi.org/10.1007/978-3-319-09656-8_3
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