Quantum state of the multiverse
| Autor: | Pedro F. González-Díaz, Salvador Robles-Pérez |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Density matrix
Physics Nuclear and High Energy Physics media_common.quotation_subject FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) General Relativity and Quantum Cosmology Universe Theoretical physics Quantization (physics) Multiverse Quantum state Quantum cosmology Quantum mechanics [PACS] Quantum cosmology Coherent states [PACS] Formalism media_common Squeezed coherent state |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 1550-2368 1550-7998 |
| DOI: | 10.1103/physrevd.81.083529 |
| Popis: | A third quantization formalism is applied to a simplified multiverse scenario. A well-defined quantum state of the multiverse is obtained which agrees with standard boundary condition proposals. These states are found to be squeezed, and related to accelerating universes: they share similar properties to those obtained previously by Grishchuk and Siderov. We also comment on related works that have criticized the third quantization approach. © 2010 The American Physical Society. This work was supported by MICINN under Research Project No. FIS2008-06332. |
| Databáze: | OpenAIRE |
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