Published 1984
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Behaviour of the gravitational field around the initial singularity
Description
The ultralocal representation of the canonically quantized gravitational field is used to obtain the evolution of coherent states in the immediate neighborhood of the singularity. It is shown that smearing functions play the role of classical fields since they correspond to cosmological solutions around the singularity. A special class of ultralocal coherent states is shown to contain the essential aspects of the dynamics of the system when we choose a simple representation for the field operators of the theory. When the ultralocality condition is broken a conjecture will be made about the quantum evolution of coherent states in the classical limit. (Author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Usa-se a representacao ultra-local do campo gravitacional canonicamente quantizado para obter a evolucao dos estados coerentes na vizinhanca imediata da singularidade. Demonstra-se que as funcoes suavizadoras desempenham o papel dos campos classicos ja que eles correspondem a solucoes cosmologicas em torno da singularidade. Demonstra-se tambem que uma classe especial de estados coerentes ultra-locais engloba os aspectos essenciais da dinamica do sistema quando escolhida uma representacao simples para operadores do campo da teoria. Para o caso em que a condicao de ultra-localidade e satisfeita, conjectura-se sobre a evolucao quantica dos estados coerentes no limite classico. (T.K.)Files
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Additional details
Publishing Information
- Imprint Pagination
- 31 p.
- Report number
- IFT-P--04/84
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 16015473
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- COSMOLOGICAL MODELS; MATHEMATICAL MODELS; QUANTIZATION; QUANTUM GRAVITY; SINGULARITY
- Descriptors DEC
- FIELD THEORIES; QUANTUM FIELD THEORY