Epstein Secrets

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

31 Caroline Street North, Waterloo, Ontario N2J 2Y5, Canada July 5, 2010 Abstract In deformed or doubly special relativity (DSR) the action of the Lorentz group on momen- tum eigenstates is deformed to preserve a maximal momentum or minimal length, supposed equal to the Planck length, to, = VO. The cla

deSitter group. 7i= 4E2sinh2 — kikiet —'»a2 = 0 2Ep (20) An integration measure on momentum space, invariant under the non-linear action of the Lorentz group is defined by dw = dko A d3ke (21) 2.3 Correspondence with s-Poincare To construct the quantum theory we prefer to work with our original a

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

description in Bob's frame we make a pure boost, using (6) and (7). We note that, just as in special relativity, it is completely unambiguous what Lorentz transformation to use; this is fixed by the requirement that the origin of Bob's coordinates coincide with the origin of Alice's coordinates. This

determined by phenomena that lie well beneath the surface of our experience—phenomena that don't rely in any way upon our existence. In this sense, Einstein was wrong: "God" does appear to play dice with the universe, or universes. So far we have been lucky. But like playing at the craps table, our luck

ot implemented. Novel ideas generally stagnate and die without the courage to implement them. I bring this up here because perhaps the true mark of Einstein's ge- nius was not his mathematical prowess (although, contrary to conven- tional wisdom, he was mathematically talented), but his creativity and hi

g the charge forward or backward, the magnet exerts a force always at right angles to the motion of the electric charge. This force, now called the Lorentz force—after 2P_Glealer-StoryEverTold_Atincld 88 12/18/18 3:06 PIA EFTA00285990 A Stitch in Time 69 Hendrik Lorentz, a physicist who came close