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Title of Journal: Nuov Cim B

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Abbravation: Il Nuovo Cimento B (1971-1996)

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Società Italiana di Fisica

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DOI

10.1002/bit.260351012

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1826-9877

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Beyond the single universe

Authors: P F GonzalezDiaz
Publish Date: 2007/11/17
Volume: 108, Issue: 11, Pages: 1197-1225
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Abstract

Wormholes are going to play a rather crucial role in any theory of quantum gravity In this paper a method is discussed for describing the statistics associated with a single wormhole in terms of probabilities and correlation functions and their generating functionals relative both to an observer living in Euclidean time and an observer in the asympotic region We obtain matrix elements between vacuum states filtered by the quantum state of the wormhole of the same form as those which were recently discussed by Hawking and others for Abelian matter fields For nonAbelian gauge fields the matrix elements turn out to be given in terms of the field intensities rather than the fields themselves In generalizing the procedure for obtaining wormholefiltered generating functionals we had to introduce the notion of cosmological spin which turned out to be responsible for providing the quantum state of a single universe with an observable character It has been also seen that baby universes are in highly nonclassical states describable as localized squeezed states of spacetime

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Other Papers In This Journal:
  1. The algebra of bounded additive operators on a complex Hilbert space
  2. N = 1,2 supergravities in 2 + 1 dimensions as Chern-Simons theories
  3. Maximal acceleration and the time-energy uncertainty relation
  4. Superselection rules; old and new
  5. On the relation between energy and momentum for electrons of a few MeV
  6. Measurements of low-frequency 1/ f α noise in semiconductor polycrystalline thin films of PbTe
  7. Nonrelativistic limit in the algebraic approach of relativistic quantum mechanics
  8. Machian solution with matter injection in cosmology
  9. A note on a quantum-mechanical harmonic oscillator in a space of constant curvature
  10. The gyrofrequency of a charged particle in a constant electromagnetic field. II.—The general result
  11. Magnetic bloch functions
  12. Electromagnetic potential vectors and spontaneous symmetry breaking
  13. Triplet correlations in model liquids
  14. Gravitational-wave tail in Einstein’s linear theory
  15. On the hypothesis that quantum mechanics has a nonlocal structure
  16. A deterministic representation of plane-wave interference
  17. The reconstruction theorem with external sources
  18. Nonabsorption resonances by nonlinear coherent effects in a three-level system
  19. Solution with third-order accuracy for the electron distribution function in weakly ionized gases and intrinsic semiconductors
  20. Probable observation of «excitonic» superconductivity in formvar-aluminum sandwiches
  21. Existence and stability criteria for circular geodesics in the vicinity of a Reissner-Nordström black hole
  22. High-resolution spectroscopy in the far ultraviolet
  23. A theoretical analysis on vibrational-energy transfers in gases
  24. A new calculation of atmospheric neutrino flux
  25. Four-dimensional symmetry from a broad viewpoint
  26. Four-dimensional symmetry from a broad viewpoint
  27. Inhomogeneous positron trapping in fatigued aluminum single crystals
  28. Rotationally symmetric clusters with zero net angular momentum
  29. On exact canonical momenta of collective motion in a many-boson system
  30. Instanton- and monopole-induced compactification of CP N space and chiral fermions in the Einstein-Yang-Mills theory
  31. Variational methods for bound-state problems
  32. Ray propagation in an inviscid fluid
  33. New methods for treatment of spheroidal functions in the solution of scalar wave equation
  34. Dynamics in the Gödel universe
  35. Cauchy initial-value problem and application to Schwarzschild and Friedmann metrics
  36. One-dimensional KDP model with random impurities
  37. Ion-atom cross-sections for sputtering of inert-gas ion incident at low energy on polycrystalline copper target
  38. Conformal conservation laws for second-order scalar fields
  39. Exact solutions of nonlinear differential equations using continued fractions
  40. The classification of spherically symmetric space-times
  41. Radiating collapse of a heat-conducting-fluid sphere with conformally flat interior
  42. Pais-uhlenbeck regularization of free quantum gravity: toward a unitary theory
  43. Local Poincaré generators in the R + T 2 + R 2 theory of Gravity
  44. Transformation de Fourier sur le groupe conforme
  45. Guided optics in rotating dielectric media
  46. Estimation of the contribution of alpha-induced nuclear reactions to the galactic abundances of lithium, beryllium and boron
  47. Limitations and validity of the Hartree-Fock method
  48. Free-electron laser supermodes for bunches with longitudinal energy-position correlation
  49. Classical geometrodynamics revisited
  50. Some cosmological models with constant deceleration parameter
  51. Quantum of London and spin-(l/2)
  52. On the theory of identical particles
  53. The Spin-1÷2 Heisenberg ferromagnet via anticommutator Green’s functions utilizing Tyablikov decoupling
  54. Stochastic kinetic theory of strong wave-plasma interaction
  55. Polarization effects in cosmological models with anisotropic curvature
  56. Thermal-ghost fields and unstable systems
  57. Comments on the string theory
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