منابع مشابه
Hamiltonian formalism for the Oppenheimer-Snyder model
An effective action in Hamiltonian form is derived for a self-gravitating sphere of isotropic homogeneous dust. Starting from the Einstein-Hilbert action for barotropic perfect fluids and making use of the symmetry and equation of state of the matter distribution we obtain a family of reduced actions for two canonical variables, namely the radius of the sphere and its ADM energy, the latter bei...
متن کاملGeneral Relativistic Shock Waves that Extend the Oppenheimer-Snyder Model
In earlier work we constructed a class of spherically symmetric, ̄uid dynamical shock waves that satisfy the Einstein equations of general relativity. These shock waves extend the celebrated Oppenheimer-Snyder result to the case of non-zero pressure. Our shock waves are determined by a system of ordinary dierential equations that describe the matching of a FriedmannRobertson-Walker metric (a c...
متن کاملA Smooth Lattice construction of the Oppenheimer-Snyder spacetime
We present test results for the smooth lattice method using an OppenheimerSnyder spacetime. The results are in excellent agreement with theory and numerical results from other authors.
متن کاملQuantum heat transfer: a Born-Oppenheimer method.
We develop a Born-Oppenheimer-type formalism for the description of quantum thermal transport across hybrid nanoscale objects. Our formalism is suitable for treating heat transfer in the off-resonant regime, where, e.g., the relevant vibrational modes of the interlocated molecule are high relative to typical bath frequencies, and at low temperatures when tunneling effects dominate. A general ex...
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: Physical Review D
سال: 2020
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.101.026016