Is It Possible to Use a Quantum Eraser to Send Binary Data to a Remote Location?

Work on the quantum eraser can be adapted to produce devices that allow for the transfer of binary information between locations remote from one another without the velocity limitation of the velocity of light in vacuum. The devices are not quantum erasers as used by Scully and Kim. Instead, these devices are based on the option of undoing developing entanglement between spatially separated physical entities while information developed in a measurement on at least one of the entities remains “hidden.” For example, in their adaptation of the classic double-slit experiment in quantum mechanics to develop a quantum eraser, Scully and his colleagues relied on entanglement between: 1) an atom’s emitting a photon in one of two micromaser cavities as the atom passes through the cavity system and 2) the atom’s subsequent passage through the fixed double-slit screen. If, instead of relying on entanglement, the development of the entanglement between the atom’s emitting the photon in one of the micromaser cavities and the atom’s subsequent passage through the fixed double-slit screen is interrupted in a suitable fashion (as in the Quantum Information Transfer Device), it may be possible to obtain complete interference as if there were no micromaser cavity system or laser through which the atom traveled on its way to the double-slit screen. Kim and his colleagues performed a novel form of quantum eraser experiment that also relied on entanglement to produce a quantum eraser. Instead of the atom that emits a photon in one or the other of the micromaser cavities as in the Scully experiment, Kim and his colleagues entangled an idler photon moving through an interferometer with a paired signal photon generated in the same process at a single location. Instead of relying on entanglement exclusively, the proposed Optical Quantum Information Transfer Device relies on "hidden" events for idler photons where these "hidden" events point to which-way information for these idler photons. Through either: 1) keeping the "hidden" events "hidden" until which-way information is lost, or 2) instead making these events public before which-way information is lost, one has the option to interrupt the developing entanglement between: a) the idler photon’s originating at a specific source and traveling a specific route through the interferometer correlated to this source, and b) the paired signal photon’s originating at the same specific source as the idler photon in the same process of creation and taking a specific path to the detection axis correlated to the specific source. With the option of interrupting the developing entanglement, two possible distributions for the signal photons can be developed in different sets of runs, each set associated with either condition 1) or 2) above concerning the paired idler photons. Each of the possible distributions can be associated with a unique binary value.