The Hartle–Hawking state, also known as the no-boundary wave function is a proposal in theoretical physics concerning the state of the universe prior...

Hawking subsequently developed the research in collaboration with Jim Hartle, and in 1983 they published a model, known as the Hartle–Hawking state....

histories, called the 'no-boundary proposal', the proposed Hartle–Hawking state. According to Hawking and Thomas Hertog, "The top-down approach we have described...

Chicago in 1983, he developed the Hartle–Hawking wavefunction of the Universe in collaboration with Stephen Hawking. This specific solution to the Wheeler–deWitt...

conditions. Gibbons–Hawking space, named after Gary Gibbons and Hawking, a concept in algebraic geometry. Hartle–Hawking state and Hartle–Hawking function, a...

and then evaporates away entirely through Hawking radiation. Hawking's calculation suggests that the final state of radiation would retain information only...

break down, to remove the singularity and avoid such breakdowns (see Hartle–Hawking state). The Big Bang, for example, appears as a singularity in ordinary...

approaches based in part on the work of DeWitt and Dirac include the Hartle–Hawking state, Regge calculus, the Wheeler–DeWitt equation and loop quantum gravity...

cosmological theories. An example of such a wave function is the Hartle–Hawking state. Bryce DeWitt first published this equation in 1967 under the name...

Hawking radiation is black-body radiation released outside a black hole's event horizon due to quantum effects according to a model developed by Stephen...

documentary film about the physicist Stephen Hawking, directed by Errol Morris. The title derives from Hawking's bestselling 1988 book A Brief History of...

Function. It later received investigation from James Hartle and Stephen Hawking who derived the Hartle–Hawking solution to the Wheeler–DeWitt equation to explain...

of some of Britain's most important scientists and innovators. Stephen Hawking – Theoretical Physicist, Cosmologist Jim Al-Khalili – Theoretical physicist...

Quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely...

chaos. Models in which the whole of spacetime is finite, including the Hartle–Hawking no-boundary condition. For these cases, the Big Bang does represent...

proposed theoretical scenarios include string theory, M-theory, the Hartle–Hawking initial state, emergent Universe, string landscape, cosmic inflation, the Big...

is consistent with Stephen Hawking's theoretical work on black holes in the 1970s. A study by Sasha Haco, Stephen Hawking, Malcolm Perry and Andrew Strominger...

observation of gravitational waves. A longtime friend and colleague of Stephen Hawking and Carl Sagan, he was the Richard P. Feynman Professor of Theoretical...

The Penrose–Hawking singularity theorems (after Roger Penrose and Stephen Hawking) are a set of results in general relativity that attempt to answer the...

existence of simultaneous parallel universes. Collaborating with James Hartle, Gell-Mann worked toward the development of a more "palatable" post-Everett...

its event horizon, is termed extremal. Before Stephen Hawking came up with the concept of Hawking radiation, the question of black holes having entropy...

predictive power. The issue cannot be avoided, since according to the Penrose–Hawking singularity theorems, singularities are inevitable in physically reasonable...

copies in the thermofield double state. This was in parallel with well known work by Hartle and Hawking and the state of a black hole in equilibrium with...

Lehmann Harry Messel Harry Swinney Harry Zvi Tabor Hartland Snyder Hartle–Hawking state Hartman effect Hartmut Kallmann Hartree Hartree–Fock method Harvard...

or contracting. This effort was unsuccessful because: any desired steady state solution described by this equation is unstable, and observations by Edwin...

Together with Werner Israel and Stephen Hawking, he proved partially the no-hair theorem in general relativity, stating that all stationary black holes are...

they attempted to compute the probability of inflation in the Hartle–Hawking initial state. Other authors have argued that, since inflation is eternal,...

emits Hawking radiation and so it can come to thermal equilibrium with a gas of radiation (not compulsory). Because a thermal-equilibrium state is...

Cosmology, General Relativity, Big Bang Cosmology, Evil Natural Laws, and Hartle-Hawking Cosmology. He engaged in many debates with leading theists such as William...

of the leading developers of theories to describe black holes, Stephen Hawking, suggested that an apparent horizon should be used instead of an event...