On the phantom barrier crossing and the bounds on the speed of sound in non-minimal derivative coupling theories (Q4562924)
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scientific article; zbMATH DE number 6881208
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the phantom barrier crossing and the bounds on the speed of sound in non-minimal derivative coupling theories |
scientific article; zbMATH DE number 6881208 |
Statements
On the phantom barrier crossing and the bounds on the speed of sound in non-minimal derivative coupling theories (English)
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6 June 2018
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Ostrogradsky instability
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scalar-tensor theory
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phantom barrier crossing
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gradient instability
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causality
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scalar perturbations
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tensor perturbations
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squared sound speed
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