Quantum cryptography based on wheeler's delayed choice experiment

Charles H. Bennett, François Bessette, Gilles Brassard A +2 more

Shuang Zhao, Shengjun Yuan, Hans A. De Raedt +1 more

We present a computer simulation model of Wheeler's delayed choice experiment that is a one-to-one copy of an experiment reported recently (V. Jacques {\sl et al.}, Science 315, 966 (2007)). The model is solely based on experimental facts, satisfies Einstein's criterion of local causality and does not rely on any concept of quantum theory. Nevertheless, the simulation model reproduces the averages as obtained from the quantum theoretical description of Wheeler's delayed choice experiment. Our results prove that it is possible to give a particle-only description of Wheeler's delayed choice experiment which reproduces the averages calculated from quantum theory and which does not defy common sense.

Hugo Zbinden

Shuang Zhao, Shengjun Yuan, Hans A. De Raedt +1 more

We present a computer simulation model of Wheeler’s delayed choice experiment. The model is solely based on experimental facts and does not rely on concepts of quantum theory or probability theory. We demonstrate that it is possible to give a particle-only description of Wheeler’s delayed choice experiment which reproduces the averages calculated from quantum theory and which does not defy common sense.

XinHua Liu, ChuangRui Liu, HanRui Liu

Abstract Wheeler proposed the "Delayed-Choice" Double-Slit Experiment. Perhaps the quantum delayed eraser experiments revealed Wheeler's unmeasurable phenomenon. However, all quantum delayed eraser experiments involve non-locality between entangled photon pairs, causing the timing relationship between events on the idler path and events on the signal path to not necessarily represent the timing relationship between the correspond events on the signal path. In the quantum delayed eraser experiments, the time distinguishing the path passing through the double-slit on the signal path is when they pass through the slits. Therefore, the quantum delayed eraser experiments do not adhere to the condition in Wheeler's "Delayed-Choice" Double-Slit Experiment, which need the distinction of the photons passing through the double-slit is done after the formation of the fringe pattern. The results of the quantum delayed eraser experiments do not exhibit the unmeasured phenomenon of Wheeler's "Delayed-Choice" Double-Slit Experiment. This paper proposes a method that eliminates the non-locality effects of entangled photons without using entangled photon pairs. By dividing the route of photons passing through the double-slit into two routes and verifying the fringe pattern based on the number of photons on the two routes, Wheeler's notion of an unmeasured phenomenon becomes measurable, thus providing a revelation method of the unmeasured phenomenon in Wheeler's "Delayed-Choice" Double-Slit Experiment.

Charles H. Bennett, François Bessette, Gilles Brassard A +2 more