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[ICQ] Albert Rico (Jagiellonian University Kraków) Entanglement detection with trace polynomials

We provide a systematic method for nonlinear entanglement detection based
on trace polynomial inequalities. In particular, this allows us to employ
multipartite witnesses for the detection of bipartite states, and vice
versa. We identify pairs of entangled states and witnesses for which linear
detection fails, but for which nonlinear detection succeeds. With the trace
polynomial formulation a great variety of witnesses arise from immanant
inequalities, which can be implemented in the laboratory through the
randomized measurements toolbox.

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