Hartle hawking wave function

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August undefined, 2024

WebApr 14, 2024 · The Hartle–Hawking wave function is known to be the Fourier dual of the Chern–Simons or Kodama state reduced to mini-superspace, using an integration … WebThe paper puts forward a modification of the no -boundary Hartle -Hawking wave function in which, in the general case, the Euclidean functional integral can be described by an …

Wave function of the Universe (Journal Article) OSTI.GOV

WebApr 4, 2024 · the Hartle-Hawking contour only. In Section V we blame something more fundamental: the non-Hermiticity of the Hamiltonian. This failure is physically intuitive. The Hartle-Hawking and Vilenkin proposals loosely correspond to the two situations depicted in Fig. 1. In metric space the Hartle-Hawking wave function (left) can be seen as the re WebHawking and others believed that a quantum gravity theory could be developed in this way. This approach was named the "Euclidean path integral approach" to quantum gravity or simply "Euclidean quantum gravity". Hawking views are summarized in J. B. Hartle and S. W. Hawking, "Wave function of the Universe" Phys. Rev. D 28 (1983) 2960–2975. alba veni al color

Why concave rather than convex inflaton potential? (Journal Article ...

WebOct 26, 2024 · It is known that for a more generic choice of parameters than that originally assumed by Hartle and Hawking, the Hartle–Hawking wave function is dominated by Euclidean wormholes, which can be interpreted as the creation of two classical universes from nothing. We show that only one end of the wormhole can be classicalized for a … WebWe argue that the topological string partition function, which has been known to correspond to a wave-function, can be interpreted as an exact “wave-function of the uni-verse” in … WebDec 1, 2024 · Abstract. It is shown that, for a de Sitter Universe, the Hartle–Hawking (HH) wave function can be obtained in a simple way starting from the Friedmann–Lemaitre–Robertson–Walker (FLRW) line element of cosmological equations. An oscillator having imaginary time is indeed derived starting from the Hamiltonian … alba veronica acevedo ventura

(PDF) A generalized Hartle-Hawking wavefunction

WebOct 5, 2024 · Download PDF Abstract: We re-examine the Hartle-Hawking wave function from the point of view of a quantum theory which starts from the connection representation and allows for off-shell non-constancy of $\Lambda$ (as in unimodular theory), with a concomitant dual relational time variable. By translating its structures to the metric … WebThis wave-function can be interpreted in the context of flux compactification of all spatial dimensions as providing a physical probability distribution on the moduli space of string … alba vendrell perezWebAug 15, 2024 · The Hartle-Hawking wave function gives the probability of a Universe with specific characteristics to be created from nothing.” “One of the Great Mysteries of Physics?” Many physicists strongly suspect that there is something quite deep underlying this correspondence, something that we haven’t been able to fully grasp yet. alba vicente

"WebThe universal wavefunction (or wave function), introduced by Hugh Everett in his 1973 PhD thesis The Theory of the Universal Wave Function, informs a core concept in the … " - Hartle hawking wave function

Hartle hawking wave function

Interpretation of “the wave function of the Universe” SpringerLink

WebThe cosmological wave function can be used to calculate the probability distribution for the initial configurations of the nucleating universes. Once the universe nucleated, it is expected to go through a period of inflation, which is a rapid (exponential) expansion driven by the energy of a false vacuum. WebJun 1, 2024 · The Hartle–Hawking no-boundary wave function of the universe , is a unique construction in quantum cosmology which has been put forward to describe the early …

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WebHawking and Turok have recently published a solution to the WKB “wave-function for the universe” which they claim leads in a natural way to an open universe as the end point of the evolution for a universe dominated by… The 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

WebNov 1, 2000 · Cosmic wave functions with the Brans-Dicke theory. Using the standard Wentzel-Kramers-Brillouin method, the Wheeler-DeWitt equation for the Brans-Dicke theory is solved under three kinds of boundary conditions (proposed by Hartle-Hawking, Vilenkin and Linde, respectively). It is found that, although the gravitational and cosmological … WebThe wave function of the Universe defined by the Hartle-Hawking proposal is studied for two minisuperspace models, the Friedmann-Robertson-Walker universe with a …

Web2962 J.B.HARTLE AND S.W. HAWKING 28 the theory from those fixed for the ground state by Eq. (1.7). Thus, one can in principle determine all the allowed cosmological states. … WebJul 5, 2024 · In this work we elaborate on holographic description of the path-integral optimization in conformal field theories (CFT) using Hartle-Hawking wave functions in Anti-de Sitter spacetimes. We argue that the maximization of the Hartle-Hawking wave function is equivalent to the path-integral optimization procedure in CFT. In particular, …

WebApr 11, 2024 · black hole in the Hartle-Hawking state [6,7]. From the fact that the time coordinate ... where x = x0 x1 are general monotonic functions of the respective light-cone coordinates x += x+(u) and x = x (v). The boundary of AdS ... energy is discontinuous at t= 0 due to the shock wave but the black hole temperature is continuous at t= 0. In Fig. (b ...

WebThe wave function of the Universe is a solution to the Wheeler-DeWitt equation. As this equation permits inﬁnitely many solutions, selecting the one that corresponds to ... albavial ficha tecnicaWebApr 14, 2024 · The Hartle–Hawking wave function is known to be the Fourier dual of the Chern–Simons or Kodama state reduced to mini-superspace, using an integration contour covering the whole real line. But since the Chern–Simons state is a solution of the Hamiltonian constraint (with a given ordering), its Fourier dual should provide a solution … alba vertical liftWebOct 15, 1990 · This solution reduces to the Hartle-Hawking wave function in the spatially isotropic sector and extends in the triad representation to the classically forbidden region where the determinant of the spatial metric becomes negative. The analysis of the quantum Robertson-Walker universe indicates that if the superspace is extended to such a ... alba viatera quartzWebMar 31, 2024 · In this work we elaborate on holographic description of the path-integral optimization in conformal field theories (CFT) using Hartle-Hawking wave functions in Anti-de Sitter spacetimes. We argue that the maximization of the Hartle-Hawking wave function is equivalent to the path-integral optimization procedure in CFT. In particular, … alba vicente olmoWebDec 15, 2024 · The Hartle-Hawking wave function is known to be the Fourier dual of the Chern-Simons or Kodama state reduced to mini-superspace, using an integration contour covering the whole real line. alba viateraWebHartle-Hawking Wave-Function for Flux Compactifications. Erik Verlinde. 2005. We argue that the topological string partition function, which has been known to correspond to a wave-function, can be interpreted as an exact ``wave-function of the universe'' in the mini-superspace sector of physical superstring theory. This realizes the ... alba video game environmentalWebCentre for Theoretical Cosmology Home page alb aviation