Pseudo Euclidean-signature harmonic oscillator, quantum field theory and vanishing cosmological constant
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 610 KB
- Volume
- 254
- Category
- Article
- ISSN
- 0375-9601
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✦ Synopsis
The harmonic oscillator in pseudo Euclidean space is studied. A straightforward procedure reveals that although such a system may have negative energy, it is stable. In the quantized theory the vacuum state has to be suitably defined and then the zero-point energy corresponding to a positive-signature component is canceled by the one corresponding to a negative-signature component. This principle is then applied to a system of scalar fields. The metric in the space of fields is assumed to have signature ( +++ . . ---)
and it is shown that the vacuum energy, and consequently the cosmological constant. are then exactly zero. The theory also predicts the existence of stable, negative energy field excitations (the socalled "exotic matter") which are sources of repulsive gravitational fields, necessary for construction of the time machines and Alcuhierre's hyperfast warp drive. @ 1999 Elsevier Science B.V.