Quantum Creation of Closed Universe with Both Effects of
Tunnelling and Well |
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Authors: | ZHANG De-Hai |
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Institution: | Department of Physics, Graduate School in Beijing,
Academia Sinica, P.O. Box 3908, Beijing 100039, China |
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Abstract: | A new “twice loose shoe” method in the Wheeler-DeWitt equation of the universe wavefunction on the cosmic scale factor a and a scalar field φ is suggested. We analyze both the
affections coming from the tunnelling effect of a and the potential well
effect of φ, and obtain the initial values a0 and φ0
about a primary closed universe which is born with the largest probability
in the quantum manner. Our result is able to overcome the “large field
difficulty” of the universe quantum creation probability with only
tunnelling effect. This new born universe has to suffer a startup of
inflation, and then comes into the usual slow rolling inflation. The
universe with the largest probability maybe has a “gentle” inflation or an
eternal chaotic inflation, this depends on a new parameter q which
describes the tunnelling character. |
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Keywords: | universe quantum creation tunnelling effect potential well effect |
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