A Few Interpretations

Gennaro Auletta

G. G. Lapaire, John E. Sipe

We present a general theory to describe two-photon interference, including a formal description of few photon intereference in terms of single-photon amplitudes. With this formalism, it is possible to describe both frequency entangled and separable two-photon interference in terms of single-photon wave functions. Using this description, we address issues related to the physical interpretation of two-photon interference experiments. We include a discussion on how few-photon interference can be interpreted as a bosonic exchange effect, and how this relates to traditional exchange effects with fermions.

Jan-Markus Schwindt

Isaac Wilhelm

The centered Everett interpretation solves a problem that various approaches to quantum theory face. In this paper, I continue developing the theory underlying that solution. In particular, I defend the centered Everett interpretation against a few objections, and I provide additional motivation for some of its key features.

Abner Shimony

Lawrence Sklar

Abstract If we take a comparative look at what goes on when a fundamental theory is said to be interpreted, I think there is little doubt that we will agree that ‘interpretation’ is a family-resemblance term. There may be some chain of relevant pairwise similarities that connect all the standard cases of interpretation into a chain, but there are plainly pairs of interpretations of theories that have few interesting common elements. A very wide range of theories have been subjected to interpretive programs. But in order to focus our attention it will be best to look just at those interpretations directed toward foundational theories in physics. Even with this restriction, we shall see, there is quite a diversity of things that goes on when one is said to be offering an interpretation of one of these fundamental physical theories.