| Issue |
EPL
Volume 96, Number 6, December 2011
|
|
|---|---|---|
| Article Number | 61001 | |
| Number of page(s) | 6 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/96/61001 | |
| Published online | 07 December 2011 | |
Lorentz-preserving fields in Lorentz-violating theories
1
S. N. Bose National Centre for Basic Sciences - Kolkata 700098, India
2
Saha Institute of Nuclear Physics - Kolkata 700064, India
a
oindrila@bose.res.in
b
debashis@bose.res.in
c
parthasarathi.majumdar@saha.ac.in
Received:
14
September
2011
Accepted:
31
October
2011
We identify a fairly general class of field configurations (of spins 
and 1) which preserve Lorentz invariance in effective field theories of Lorentz violation characterized by a constant timelike vector. These fields concomitantly satisfy the equations of motion yielding cubic dispersion relations similar to those found earlier. They appear to have prospective applications in inflationary scenarios.
PACS: 11.30.Cp – Lorentz and Poincaré invariance / 11.10.Ef – Lagrangian and Hamiltonian approach / 03.30.+p – Special relativity
© EPLA, 2011
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