The top left image is a square region of 1 1 Minkowski space, into which has been sprinkled 4096 points.
Don Page (Yasaman’s future postdoc advisor at Univ.
of Alberta), Steve Carlip (External Examiner at Yasaman’s Ph D defence), Yasman herself, myself and Rafael Sorkin (Yasman’s Ph D co-supervisors), and Bill Unruh (Yasaman’s former undergraduate supervisor at Univ.
Reggeization of some unequal mass processes involving higher spins : the reactions pion-nucleon going to (V, Nucleon), pion-nucleon going to (V,delta-hyperon), and photon-proton going to (positive pion,neutron). Spectrometer Measurements of the Rates of Gamma Radiation and Internal Pair Formation from Some Nuclear Reactions in Light Nuclei. Theory of the Energy Levels of the Mirror Nuclei, C^(13) and N^(13). Note on the equations of triple and quadruple correlation functions in isotropic turbulence. On the turbulent mixing of two fluids of different densities. On the possibility of keeping the electrons inside the dimension of the nucleus and the quantum mechanical theory of neutron.
Yasaman Yazdi on successfully defending her thesis, entitled: “Entanglement Entropy of Scalar Fields in Causal Set Theory” Featured above is the most photogenic celebratory cake that you’ll ever see, featuring Yasman’s seminal recovery of entropy “area” law for 2D causal sets, as well as a tale of our foray into firewall territory with high energy neutrinos!
Two Topics in Elementary Particle Physics: (1) Quark Graphs and Angular Distributions in the Decays of the Axial-Vector Mesons.
(2) Universal Current-Current Theories and the Non-Leptonic Hyperon Decays.It is this `hyper-connectivity' that allows them to maintain Lorentz invariance in the presence of discreteness.(In the case of causal sets, it is the mean valence of the Hasse diagram which is important, not of the causal relation itself.) Below is a demonstration of the Lorentz invariant character of causal sets.A familiar example of a causal set is a family tree. It is plotted using the convention of spacetime diagrams in which the oldest ancestors appear at the bottom.My uncle James Lynn Rideout has compiled an extensive database of 8000 of our relations, which is depicted here. Note that the only parent-child relationship is considered.The many disconnected people are spouses for whom he did not know the parents or children.The `usual' discrete structures which we encounter, e.g., as discrete approximations to spatial geometry, have a `mean valence' of order 1.The growth process is depicted by the poset of finite causal sets, sometimes called poscau, in which two causets are related (in the poset's order) if one can reach the other by a sequence of sequential growth.(Equivalently, a causet A comes before, or precedes, B, if B contains a past-closed subcauset which is isomorphic to A.) I have generated diagrams of poscau for all causets up to four elements, and five.The colors of the links do not play an essential role.(The purple links connect elements on neighboring 'layers', where the layer of an element is the length of the longest past directed chain which ends at that element.