Gaussian quantum marginal problem according to Eisert, Tyc, Rudolph , and Sanders (part 2)

by Erik Aurell (KTH)

Thursday 30 Mar 2023, 13:00 → 14:00 Europe/Stockholm

AlbaNova C4:3059 - Café Planck (AlbaNova Main Building)

In an earlier seminar I discussed the necessity part of the inequalities that a solution to the Gaussian quantum marginal problem has to satisfy. In this talk I will discuss the sufficiency part, mostly repeating and making explicit details in the proof in [1]. I will also discuss a representation of the N-mode symplectic transformations that enter the construction in terms of chains of two-mode symplectic transformations.

 

[1] "Gaussian Quantum Marginal Problem", Eisert et al, Comm Math Phys 280, pages263–280 (2008)