2019
DOI: 10.48550/arxiv.1910.09117
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The chemical birth-death process with additive noise

Abstract: The chemical birth-death process, whose chemical master equation (CME) is exactly solvable, is a paradigmatic toy problem often used to get intuition for how stochasticity affects chemical kinetics. In a certain limit, it can be approximated by an Ornstein-Uhlenbeck-like process which is also exactly solvable. In this paper, we use this system to showcase eight qualitatively different ways to exactly solve continuous stochastic systems: (i) integrating the stochastic differential equation; (ii) computing the c… Show more

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Cited by 5 publications
(8 citation statements)
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References 35 publications
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“…There are probably many more results (in both stochastic gene regulation and studies of active matter dynamics) that can be derived by exploiting useful parallels between quantum mechanics and stochastic chemical reaction dynamics, as several pieces of past work have suggested [50,51,[57][58][59].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…There are probably many more results (in both stochastic gene regulation and studies of active matter dynamics) that can be derived by exploiting useful parallels between quantum mechanics and stochastic chemical reaction dynamics, as several pieces of past work have suggested [50,51,[57][58][59].…”
Section: Discussionmentioning
confidence: 99%
“…Parenthetically, we may note that the use of these ladder operators to understand the birth-death process evokes striking parallels with the quantum harmonic oscillator; the analogy is even more striking in the continuous limit, where Hermite polynomials replace the Charlier polynomials (see Sec. VI and [50]). In some sense, a single chemical species being randomly produced and degraded behaves like a free boson.…”
Section: Hermitian Conjugatesmentioning
confidence: 92%
“…The Onsager-Machlup [78,79,80,81] and Martin-Siggia-Rose-Janssen-De Dominicis [82,83,84,85,81] path integrals are two other examples, which offer an alternative to the Fokker-Planck equation in the same way the Doi-Peliti path integral is an alternative to the CME. While exact computations of these path integrals are also tedious, they are just as mechanicalone can 'turn the crank' and generate answer, without relying on (for example) a priori knowledge of special functions to solve differential equations [86,75].…”
Section: Discussionmentioning
confidence: 99%
“…1, we will call this system the chemical birth-death process with Gillespie noise. It is closely related to an even simpler approximation (which is only valid when the system is sufficiently close to its steady state value x ss = k/γ) of the same system, the chemical birth-death process with additive noise [40].…”
Section: Introductionmentioning
confidence: 99%