Back to the Quantum Future

Gene H. Barbee

Observations regarding unexpected connections in quantum mechanically entangled systems are revealing a new understanding of our position in the universe. Experiments known by the initials EPR (Einstein, Podolsky and Rosen) show a statistical correlation between separated particle properties. If two particles are produced with opposite spins and move in different directions, it is observed that changes induced in one particle cause immediate changes in its partner. The classic “dual slit experiment” demonstrates that quantum photons can either produce a spot pattern or an interference pattern depending on whether an observer can “measure” which of two slits the photon travels through. More recently, a Discovery Magazine article by Zeeva Merali (Aug 26, 2010) indicates that an entangled particle responds to future changes in its partner (called “back from the future” observations by Jack Sarfatti of Cornell University). The author discusses the implications of taking this data at face value. Three FQXi contest essays [5][6][9]lead up to what I believe to be the explanation for EPR results and back from the future observations.

Kimball A. Milton

Debabrata Goswami

This conference focused on the issue of quantum computation with a very unique perspective of its back action rather than its future, which has usually been the focus. Leading international researchers working on quantum computing from computer science, information technology, physics, and chemistry present their most recent scholarly research indicating the current impact of quantum computing on science and technology.

David Deutsch, ARTUR K. EKERT

Don Lincoln

Federico Levi