منابع مشابه
Dispersion and collapse in stochastic velocity fields on a cylinder
The dynamics of fluid particles on cylindrical manifolds is investigated. The velocity field is obtained by generalizing the isotropic Kraichnan ensemble, and is therefore Gaussian and decorrelated in time. The degree of compressibility is such that when the radius of the cylinder tends to infinity the fluid particles separate in an explosive way. Nevertheless, when the radius is finite the tra...
متن کاملNeutrinos in Stochastic Media: From Sun to Core-Collapse Supernovae
Recent work on neutrino propagation in stochastic media and its implications for the Sun and corecollapse supernovae are reviewed. It is shown that recent results from Sudbury Neutrino Observatory and SuperKamiokande combined with a best global fit value of δm2 = 5× 10−5 eV2 and tan2 θ = 0.3 rule out solar electron density fluctuations of a few percent or more. It is argued that solar neutrino ...
متن کاملGeneralized Stochastic Schrödinger Equations for State Vector Collapse
A number of authors have proposed stochastic versions of the Schrödinger equation, either as effective evolution equations for open quantum systems or as alternative theories with an intrinsic collapse mechanism. We discuss here two directions for generalization of these equations. First, we study a general class of norm preserving stochastic evolution equations, and show that even after making...
متن کاملTrue Collapse and False Collapse
We emphasize that standard quantum theory (SQT) is incomplete because it doesn’t describe what is experimentally observed, namely events, nor does it satisfactorily define the circumstances under which events may occur. Simple models are given (all of which have the same density matrix evolution) to illustrate schemes which claim to complete SQT. It is shown how the model based upon the Continu...
متن کاملShock-Induced Bubble Collapse versus Rayleigh Collapse
This paper compares two physical mechanisms for the collapse of a bubble near a rigid wall: a traveling shock-induced collapse and a Rayleigh-like collapse due to a uniform rise of the pressure around the bubble. A multi-material compressible flow solver capable of handling material interfaces under high pressures is used to investigate these two scenarios for different levels of the driving pr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2020
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2020/01/026