Hartle–hawking state

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August undefined, 2024

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[2012.08603] A generalized Hartle-Hawking wavefunction

WebApr 13, 2024 · The spontaneous excitation of a two-level atom held static outside a four dimensional Schwarzschild black hole and in interaction with a massless scalar field in the Boulware, Unruh and Hartle-Hawking vacuum is investigated and the contributions of the vacuum fluctuations and radiation reaction to the rate of change of the mean atomic … WebHartle-hawking-state definition: (physics) A hypothetical state of the universe prior to the Planck epoch, in which time did not exist, only space . bluetooth wireless webcam

Hartle-hawking-state Definition & Meaning YourDictionary

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The Hartle-Hawking State: The No-Boundary Proposal

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WebHartle-Hawking state Hartle-Hawking state (English) Origin & history Named after James Hartle and Stephen Hawking. Noun Hartle-Hawking state (pl. Hartle-Hawking states) A hypothetical state of the universe prior to the Planck … WebAug 8, 2024 · A more precise analogy would be with the Hartle-Hawking state in the Kruskal spacetime. $\endgroup$ – Valter Moretti. Aug 9, 2024 at 7:46 $\begingroup$ In the Kruskal manifold there are at least two quantum states with thermal properties. One is the HH state which is an equilibrium state, the other is the Unruh state which describes the ... clemson storage cubeWebStephen Hawking has argued that the principles of quantum mechanics forbid a single cosmic history, and has proposed cosmological theories in which the lack of a past boundary condition naturally leads to multiple histories, called the 'no-boundary proposal', the proposed Hartle–Hawking state. According to Hawking and Thomas Hertog, "The top ... bluetooth wireless transmitter for ipod

"WebFeb 16, 2024 · Hawking and Hartle said the universe doesn't have a boundary, much like Earth 's rounded surface lacks an edge. Hawking likened his no-boundary proposal (aka … " - Hartle–hawking state

Hartle–hawking state

The Hartle-Hawking "no boundary" proposal - Physics LibreTexts

WebMay 1, 2014 · We examine the response of an Unruh-DeWitt particle detector coupled to a massless scalar field on the (3 + 1)-dimensional Schwarzschild spacetime, in the Boulware, Hartle-Hawking and Unruh states, for static detectors and detectors on circular geodesics, by primarily numerical methods.For the static detector, the response in the Hartle … WebNoun [ edit] Hartle - Hawking state ( plural Hartle-Hawking states ) English Wikipedia has an article on: Hartle-Hawking state. ( physics) A hypothetical state of the universe prior to the Planck epoch, in which time did not exist, only space.

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WebImaginary time is a mathematical representation of time which appears in some approaches to special relativity and quantum mechanics. It finds uses in connecting quantum mechanics with statistical mechanics and in certain cosmological theories. [citation needed] Mathematically, imaginary time is real time which has undergone a Wick … WebJun 6, 2024 · Hartle and Hawking saw a lot of each other from the 1970s on, typically when they met in Cambridge for long periods of collaboration. The duo’s theoretical investigations of black holes and the mysterious …

WebOct 18, 2015 · What confuse me is that what on earth is Hartle Hawking state and how can a path integral over finite imaginary time project out all the state other than vacuum? … Webthe following argument against the Hartle-Hawking no-boundary proposal for the quantum state of the universe: It should most likely lead to a nearly empty large de Sitter universe, rather than to early rapid inﬂation. Even if one adds the condition of observers, they are most likely to form by quantum

WebMar 10, 2024 · The Hartle-Hawking state, as first proposed in 1996 and continuously refined until 2024 when Steven Hawking passed away, argues that instead of a pre-existing … WebWe study the Hawking radiation in the framework of open quantum systems by examining the time evolution of a detector (modelled by a two-level atom) interacting with vacuum massless scalar fields. The dynamics of the d…

WebJul 21, 2024 · In this theory the Hartle-Hawking state is defined to have the $N$-point correlation functions obtained by analytically continuing those in the Euclidean …

WebJun 22, 2024 · Hawking himself acknowledged in lectures that his and Hartle’s proposal is a hypothesis that would require testing. “So the Hartle-Hawking state, as it is now — it … clemson streameastWebThe Hartle–Hawking state is the wave function of the Universe —a notion meant to figure out how the Universe started—that is calculated from Feynman's path integral. More … bluetooth wireless waterproof speakersThe Hartle–Hawking state is the wave function of the Universe—a notion meant to figure out how the Universe started—that is calculated from Feynman's path integral. More precisely, it is a hypothetical vector in the Hilbert space of a theory of quantum gravity that describes this wave function. It is a … See more The Hartle–Hawking state is a proposal in theoretical physics concerning the state of the Universe prior to the Planck epoch. It is named after James Hartle and Stephen Hawking. Hartle and Hawking … See more • Imaginary time • Multiple histories • Signature change See more clemson stream redditWebMay 16, 2024 · The Hartle–Hawking state is a proposal in theoretical physics concerning the state of the Universe prior to the Planck epoch. It is named after James Hartle and Stephen Hawking.. Hartle and Hawking suggest that if we could travel backwards in time towards the beginning of the Universe, we would note that quite near what might … bluetooth with another phones advantagesWebJan 1, 2024 · Related: Stephen Hawking's most far-out ideas about black holes Black holes from the beginning Dark matter makes up over 80% of all the matter in the universe, but it doesn't directly interact ... bluetooth wireless yard party speaker clemsons toolbank cwmbranWebJul 21, 2024 · We study self-interacting massive scalar field theory in static spacetimes with a bifurcate Killing horizon and a wedge reflection. In this theory the Hartle-Hawking state is defined to have the N -point correlation functions obtained by analytically continuing those in the Euclidean theory, whereas the double KMS state is the pure state invariant under … clemson state university address