Epstein Secrets

Magueijo, Shahn Majid, Seth Major, Chanda Prescod-Weinstein and especially Giovanni Arnelino- Camelia for rel

rdinates are to be understood as coordinate ambiguities rather than physical non-localities. In section 4 this view is supported by an anal- ysis of Einstein's procedure for the synchronization of moving clocks, applied to sc-Minkowksi spacetime. This section closes with some general remarks about the phy

ese non-localities compromise the interpretation of experiments underway in which (1) is tested, such as in observations of gamma ray bursts by the Fermi satellite[5]. The present paper has two aims. The first is to study the description of processes in which gamma rays are emitted and detected, as i

el, Joao Magueijo, Seth Major and Chanda Prescod-Weinstein have also been very helpful. I am also grate- ful

icular local event in spacetime appears to be observer dependent. This challenges the basic operational definition of a spacetime event proposed by Einstein, according to which an event is defined by the coincide of several particles in space and time. From the point of view just mentioned, it is not su

conflict with the observed locality of interactions in nature. These considerations may be relevant for phenomenology such as observations by the Fermi observatory, because at leading order in 4 x distance there is both a direct and a stochas- tic dependence of arrival time on energy, due to an addit

quantum craziness of reality was taken by an unlikely explorer, Paul Adrien Maurice Dirac. In one sense, Dirac was the perfect man for the job. As Einstein is re- puted to have later said of him, "This balancing on the dizzying path between genius and madness is awful! When I think of Dirac, an old jok

d my own attitude and approach to the field, as well as my own understanding of it. I only wish I were as talented as either of them. Born in 1901, Fermi died at the age of fifty-three of cancer, perhaps brought on by his work on radioactivity. In 1954, when he died, he was nine years younger than I