text: 13,140,1186710627655413761,633942876,Kevin L. Keys,"Feeling both proud and nepotistic today as I announce a new paper 🎉 from my little brother! 🎉 If you love stochastic differential equations, quantum mechanics, and Sooper Precise Notation, then take a peek here: <LINK> This is the same baby bro whose first publication landed the cover of the (paywalled) journal Solar Physics. ref: Keys, D., Kholikov, S., Pevtsov, A.A. 2015, Solar Physics, 290, 659 blog: <LINK> preprint: <LINK> I cheekily informed him that it’s hard to read the discussion in his recent paper about Fock spaces and Wiener processes without giggling like a teenager. 😇",https://arxiv.org/abs/1910.08649,"The paper studies a class of quantum stochastic differential equations, modeling an interaction of a system with its environment in the quantum noise approximation. The space representing quantum noise is the symmetric Fock space over L^2(R_+). Using the isomorphism of this space with the space of square-integrable functionals of the Poisson process, the equations can be represented as classical stochastic differential equations, driven by Poisson processes. This leads to a discontinuous dynamical state reduction which we compare to the Ghirardi-Rimini-Weber model. A purely quantum object, the norm process, is found which plays the role of an observer (in the sense of Everett [H. Everett III, Reviews of modern physics, 29.3, 454, (1957)]), encoding all events occurring in the system space. An algorithm introduced by Dalibard et al [J. Dalibard, Y. Castin, and K. M{\o}lmer, Physical review letters, 68.5, 580 (1992)] to numerically solve quantum master equations is interpreted in the context of unravellings and the trajectories of expected values of system observables are calculated. ","Poisson stochastic master equation unravellings and the measurement