Alice and Bob: 't was love at a first glance. He thought she really was his one soulmate, But to be sure, one day, he set to rate How faithful she was in their romance. Alice was then invited to a weird place, A kind of mirror maze, in which she found Lots of lads, looking just like Bob all-round, And each of them eager for her embrace. A monogamy test was thus declared: The more clones Alice got entangled with, The less for her authentic Bob she cared. You may think this is nothing but a myth, But quantum social rules are so finespun: True love cannot be shared with more than one. About this #PoetRL Paper Title: Extendibility of Bosonic Gaussian States Authors: Ludovico Lami, Sumeet Khatri, Gerardo Adesso, and Mark M. Wilde Reference: Phys. Rev. Lett. 123, 050501 – Published 31 July 2019 URL: https://doi.org/10.1103/PhysRevLett.123.050501 Poem by: gerardo.adesso@gmail.com #PoetRL ID: ¶12