Weak measurement of photon polarization

M. Iinuma

Dmitri L. Khokhlov

Geoff J. Pryde, Jeremy L. O’Brien, Andrew G. White +2 more

We experimentally determine weak values for a single photon's polarization, obtained via a weak measurement that employs a two-photon entangling operation, and postselection. The weak values cannot be explained by a semiclassical wave theory, due to the two-photon entanglement. We observe the variation in the size of the weak value with measurement strength, obtaining an average measurement of the S1 Stokes parameter more than an order of magnitude outside of the operator's spectrum for the smallest measurement strengths.

M. Iinuma, Yutaro Suzuki, Gen Taguchi +2 more

We realized a simple optical weak measurement of diagonal (PM) polarization of photons by interference between the horizontal and vertical polarization components. This measurement can achieve small back-action even at low visibilities of the interference.

Geoff J. Pryde, Jeremy L. O’Brien, Timothy C. Ralph +1 more

M. Iinuma, Yutaro Suzuki, Gen Taguchi +2 more

We realized a simple optical weak measurement of diagonal (PM) polarization of photons by interference between the horizontal and vertical polarization components. This measurement can achieve small back-action even at low visibilities of the interference.