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Zitat von Marco Polo
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Alles klar! (Rest steht in PN)
BTW: Ein lustiger Text noch zum
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Entangled families: monogamy versus promiscuity. Now the subject becomes intriguing. What happens if there are three or more parties in this love game? Technically, we are addressing the complex topic of “multipartite entanglement”. In this context, there’s a fundamental law:
entanglement is monogamous! If our two lovers, traditionally called Alice and Bob, really love each other a lot – they are maximally entangled – there’s no way for Alice to be even a little bit in love with a Carlos (or the same for Bob and a Clara). This is maybe a bit controversial, as in our modern culture it’s becoming more and more popular to violate monogamy in human relationships…but at least let me say that entanglement, now that we look at it with the eyes of love, is not that bad beast that people (even eminent ones) thought it to be. Are you starting to like it? Be advised though that if the love between Alice and Bob is not total, each of them can share some love with extra parties!!
So back home, be sure that your partner is maximally entangled to you, otherwise, suspicions are legitimate!! Another interesting aspect can arise in multi-party entangled relationships. The above picture (total entanglement excludes third parties) strictly applies to very simple, ‘binary’ objects (or persons), only capable of answering either yes or no to any question without more structured argumentations (we call them “qubits”). But suppose now that Alice and Bob are more complex characters (we call them “continuous-variable systems”), capable to answer questions providing a series of elaborate motivations. Such kind of more reliable persons, may at some point think to enrich their family life with a baby. Can they love their baby while being monogamous to each other? Yes, they can! In this scenario, the entanglement (love) between any two of them in their family can be arbitrarily strong, and this enhances the genuine entanglement (love) shared by the three of them (mom, dad, and the baby).
Isn’t it a nice romantic picture?
http://arxiv.org/ftp/arxiv/papers/0706/0706.0286.pdf (Gerardo Adesso)
The social aspects of quantum entanglement
