Month: September 2022

QUESTION. “Does the initial outflow of negative energy from the white hole continue for the entire lifetime of the white hole, increasing the mass of the white hole up to the original mass of the black hole when the bouncing shell of matter that formed the black hole emerges and the white hole disappears?” https://lnkd.in/dUKnus8 View in LinkedIn

HYPOTHESIS. “An alternative scenario for the evolution of the white hole is that the outflow of negative energy across the horizon lasts only for a limited retarded time, too short for the Ford-Roman bound to be violated, after which mass of the white hole becomes constant at a larger, but still Planck-scale, value until the matter shell emerges.” https://lnkd.in/dUKnus8 View in LinkedIn

CONSEQUENCES. “Almost all of the negative energy associated with Hawking "partners" must then remain inside the white hole, which requires that it propagate along ingoing radial null geodesics. These increase in radius inside the white hole, and converge on the white hole apparent horizon unless they intersect the matter shell first.” https://lnkd.in/dUKnus8 View in LinkedIn

A TRUE BEAST. “A feature of a white hole apparent horizon is exponentially increasing blueshifts due to its negative surface gravity, but this is not a true instability, at least classically, since the exponentially increasing energy density is precisely compensated by decreasing volume from the convergence of geodesics toward the apparent horizon.” https://lnkd.in/dUKnus8 View in LinkedIn

The structure of flowering plant sexual organs has us in perpetual rapture. View in LinkedIn

INCREASED VOLUME, DECREASED DENSITY. “Both are artifacts of viewing the geodesics from an accelerating frame rather than a local inertial frame. The same thing happens in a uniformly accelerating frame near the past horizon of a Rindler wedge in Minkowski spacetime.” https://lnkd.in/dUKnus8 View in LinkedIn

QED. “The evolution of the white hole in Paper I is very simple. Its mass increases steadily as a function of retarded time due to negative energy flowing out across the white hole horizon, in a time-reverse of the evolution of the black hole. The white hole disappears when the rebounding matter shell emerges, leaving nothing behind. There is no significant flow of energy along the white hole hole horizon.” https://lnkd.in/dUKnus8 View in LinkedIn

DIMINUTIVE COUSIN. ‘The physical lifetime of the white hole…(is) much shorter than the lifetime…of a large black hole.” https://lnkd.in/dUKnus8 View in LinkedIn

“ENTROPY has played a central role in discussions of the evolution of black holes since before the discovery of Hawking radiation.” We took a very big dive into this topic. https://lnkd.in/dUKnus8 View in LinkedIn