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quant-ph2018★ 17 cited
When Greenberger, Horne and Zeilinger meet Wigner's Friend
Gijs Leegwater
A general argument is presented against relativistic, unitary, single-outcome quantum mechanics. This is achieved by combining the Wigner's Friend thought experiment with measureme…
quant-ph2017★ 9 cited
An impossibility theorem for Parameter Independent hidden variable theories
Gijs Leegwater
Recently, Roger Colbeck and Renato Renner (C&R) have claimed that '[n]o extension of quantum theory can have improved predictive power'. If correct, this is a spectacular impossibi…