Comment on "Non-representative Quantum Mechanical Weak Values"

Alon Ben-Israel (1) , Lev Vaidman

1 UTLN - Université de Toulon

Svensson (Found Phys 45: 1645, 2015) argued that the concept of the weak value of an observable of a pre- and post-selected quantum system cannot be applied when the expectation value of the observable in the initial state vanishes. Svensson's argument is analyzed and shown to be inconsistent using several examples.

Keywords: Weak value; Weak measurement; Past of photon; Nested interferometer; Two-state vector formalism; Quantum Physics

Domains: Sciences of the Universe [physics]

Alon Ben-Israel, Lev Vaidman. Comment on "Non-representative Quantum Mechanical Weak Values". Foundations of Physics, 2017, 47, pp.467-470. ⟨10.1007/s10701-017-0071-x⟩. ⟨insu-03635003⟩