On the energy-momentum tensor in Moyal space
Journal Article
·
· European Physical Journal. C, Particles and Fields
- Vienna Univ. of Technology (Austria). Inst. of Theoretical Physics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theory Division
- Inst. de Physique Nucleaire de Lyon (IPNL), Villeurbanne (France)
We study the properties of the energy-momentum tensor of gauge fields coupled to matter in non-commutative (Moyal) space. In general, the non-commutativity affects the usual conservation law of the tensor as well as its transformation properties (gauge covariance instead of gauge invariance). It is known that the conservation of the energy-momentum tensor can be achieved by a redefinition involving another starproduct. Furthermore, for a pure gauge theory it is always possible to define a gauge invariant energy-momentum tensor by means of a Wilson line. We show that the latter two procedures are incompatible with each other if couplings of gauge fields to matter fields (scalars or fermions) are considered: The gauge invariant tensor (constructed via Wilson line) does not allow for a redefinition assuring its conservation, and vice-versa the introduction of another star-product does not allow for gauge invariance by means of a Wilson line.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1221372
- Alternate ID(s):
- OSTI ID: 22387236
- Report Number(s):
- LA-UR--15-21030; PII: 3492
- Journal Information:
- European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 6 Vol. 75; ISSN 1434-6044
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Energy momentum tensor for translation invariant renormalizable noncommutative field theory
|
journal | December 2018 |
Aspects of perturbative quantum field theory on non-commutative spaces
|
conference | November 2016 |
Field Theory with Coordinate Dependent Noncommutativity
|
journal | December 2018 |
Similar Records
The energy-momentum tensor(s) in classical gauge theories
S matrix on the Moyal plane: Locality versus Lorentz invariance
Journal Article
·
Mon Jul 11 20:00:00 EDT 2016
· Nuclear Physics. B
·
OSTI ID:1324568
S matrix on the Moyal plane: Locality versus Lorentz invariance
Journal Article
·
Mon Jan 14 23:00:00 EST 2008
· Physical Review. D, Particles Fields
·
OSTI ID:21038959