Einstein's Recoiling Slit Experiment, Complementarity and Uncertainty

Tabish Qureshi, Radhika Vathsan
2013 Quanta  
We analyze Einstein's recoiling slit experiment and point out that the inevitable entanglement between the particle and the recoiling-slit was not part of Bohr's reply. We show that if this entanglement is taken into account, one can provided a simpler answer to Einstein. We also derive the Englert-Greenberger-Yasin duality relation from this entanglement. In addition, we show that the Englert-Greenberger-Yasin duality relation can also be thought of as a consequence of the sum uncertainty
more » ... ion for certain observables of the recoiling slit. Thus, the uncertainty relations and entanglement are both an integral part of the which-way detection process.
doi:10.12743/quanta.v2i1.11 fatcat:hwrv2l2zurfnxe2g6snhcm6vz4