Vacuum energy and the cosmological constant problem in κ-Poincaré invariant field theories

Jurić, Tajron; Poulain, Timothé; Wallet, Jean-Christophe (2019) Vacuum energy and the cosmological constant problem in κ-Poincaré invariant field theories. Physical review. D., 99 (045004). ISSN 2470-0010

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Abstract

We investigate the vacuum energy in κ-Poincaré invariant field theories. It is shown that for the equivariant Dirac operator one obtains an improvement in UV behavior of the vacuum energy and therefore the cosmological constant problem has to be revised.

Item Type:	Article
Uncontrolled Keywords:	noncommutative field theory ; vacuum energy
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Theoretical Physics Division
Projects:	Project title Project leader Project code Project type Ruđer Bošković Institute: Twinning for a step forward of the Theoretical Physics Division-RBI-T-WINNING Fabrizio NESTI 692194 EK Sinergijom do uspjeha: RBI-T-WINNING i ESIF udruženi u jačanju izvrsnosti Zavoda za teorijsku fiziku Instituta Ruđer Bošković-RBI-TWINN-SIN Blaženka Melić KK.01.1.1.06.0006 EK
Depositing User:	Tajron Jurić
Date Deposited:	14 Jun 2019 12:00
URI:	http://fulir.irb.hr/id/eprint/4572
DOI:	10.1103/PhysRevD.99.045004

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