Quantum Big Bang without fine-tuning in a toy-model

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F12%3A00385492" target="_blank" >RIV/61389005:_____/12:00385492 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/343/1/012136" target="_blank" >http://dx.doi.org/10.1088/1742-6596/343/1/012136</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/343/1/012136" target="_blank" >10.1088/1742-6596/343/1/012136</a>

Result language

angličtina

Original language name

Quantum Big Bang without fine-tuning in a toy-model

Original language description

The question of possible physics before Big Bang (or after Big Crunch) is addressed via a schematic non-covariant simulation of the loss of observability of the Universe. Our model is drastically simplified by the reduction of its degrees of freedom to the mere finite number. The Hilbert space of states is then allowed time-dependent and singular at the critical time t = t(c). This option circumvents several traditional theoretical difficulties in a way illustrated via solvable examples. In particular,the unitary evolution of our toy-model quantum Universe is shown interruptible, without any fine-tuning, at the instant of its bang or collapse t = t(c).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BE - Theoretical physics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physics Conference Series

ISSN

1742-6588

e-ISSN

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Volume of the periodical

343

Issue of the periodical within the volume

012136

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

1-20

UT code for WoS article

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EID of the result in the Scopus database

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