Brendan Z. Foster and Ted Jacobson JHEP08(2004)024 doi:10.1088/1126-6708/2004/08/024
Quantum field theory on a growing lattice
Brendan Z. Foster1 and Ted Jacobson1
Show affiliationsWe construct the classical and canonically quantized theories of a massless scalar field on a background lattice in which the number of points—and hence the number of modes—may grow in time. To obtain a well-defined theory certain restrictions must be imposed on the lattice. Growth-induced particle creation is studied in a two-dimensional example. The results suggest that local mode birth of this sort injects too much energy into the vacuum to be a viable model of cosmological mode birth.
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E-print Number: hep-th/0407019
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- PACS
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11.10.Kk Field theories in dimensions other than four
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- Dates
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Issue 08 (August 2004)
Received 5 July 2004, accepted for publication 11 August 2004
Published 9 September 2004
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Quantum field theory on a growing lattice
Brendan Z. Foster and Ted Jacobson JHEP08(2004)024
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