focalinterest.com

Tag: Brownian motion

  • Finite environments limit objectivity in quantum Brownian motion

    —

    in

    What the study found The study revisits objectivity in the quantum Brownian motion model under the recoilless, or Born-Oppenheimer, limit. It finds that complete objectivity cannot be achieved when the environment has only a finite number of oscillators, and that objectivity depends on timescales. Why the authors say this matters The authors say the work…

  • Hermite process distributions are shown to admit densities

    Hermite process distributions are shown to admit densities

    —

    in

    What the study found Finite-dimensional distributions of Hermite processes of order q ge 1 with self-similarity parameter H in (1/2, 1) are shown to admit a density with respect to Lebesgue measure. This result is stated for any distinct times t_1, …, t_n. Why the authors say this matters The authors note that the Gaussian…