Imperial College London
Alternate

Prof Joao Magueijo

Faculty of Natural Sciences, Department of Physics

Professor of Physics
 
 
 
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Contact

 

j.magueijo Website

 
 
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Location

 

Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Arzano:2018:10.1016/j.physletb.2018.04.027,
author = {Arzano, M and Gubitosi, G and Magueijo, J},
doi = {10.1016/j.physletb.2018.04.027},
journal = {Physics Letters B},
pages = {510--516},
title = {Parity at the Planck scale},
url = {http://dx.doi.org/10.1016/j.physletb.2018.04.027},
volume = {781},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We explore the possibility that well known properties of the parity operator, such as its idempotency and unitarity, might break down at the Planck scale. Parity might then do more than just swap right and left polarized states and reverse the sign of spatial momentum k: it might generate superpositions of right and left handed states, as well as mix momenta of different magnitudes. We lay down the general formalism, but also consider the concrete case of the Planck scale kinematics governed by κ-Poincaré symmetries, where some of the general features highlighted appear explicitly. We explore some of the observational implications for cosmological fluctuations. Different power spectra for right handed and left handed tensor modes might actually be a manifestation of deformed parity symmetry at the Planck scale. Moreover, scale-invariance and parity symmetry appear deeply interconnected.
AU  - Arzano,M
AU  - Gubitosi,G
AU  - Magueijo,J
DO  - 10.1016/j.physletb.2018.04.027
EP  - 516
PY  - 2018///
SN  - 0370-2693
SP  - 510
TI  - Parity at the Planck scale
T2  - Physics Letters B
UR  - http://dx.doi.org/10.1016/j.physletb.2018.04.027
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000435653100066&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/63087
VL  - 781
ER  -
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