Noncommutative field gas driven inflation
We investigate early time inflationary scenarios in a Universe filled with a dilute noncommutative bosonic gas at high temperature. A noncommutative bosonic gas is a gas composed of a bosonic scalar field with noncommutative field space on a commutative spacetime. Such noncommutative field theories...
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Published in | Journal of cosmology and astroparticle physics Vol. 2008; no. 4; p. 005 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
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01.04.2008
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Abstract | We investigate early time inflationary scenarios in a Universe filled with a dilute noncommutative bosonic gas at high temperature. A noncommutative bosonic gas is a gas composed of a bosonic scalar field with noncommutative field space on a commutative spacetime. Such noncommutative field theories were recently introduced as a generalization of quantum mechanics on a noncommutative spacetime. Key features of these theories are Lorentz invariance violation and CPT violation. In the present study we use a noncommutative bosonic field theory that, besides the noncommutative parameter {theta}, shows up a further parameter {sigma}. This parameter {sigma} controls the range of the noncommutativity and acts as a regulator for the theory. Both parameters play a key role in the modified dispersion relations of the noncommutative bosonic field, leading to possible striking consequences for phenomenology. In this work we obtain an equation of state p = {omega}({sigma},{theta};{beta}){rho} for the noncommutative bosonic gas relating pressure p and energy density {rho}, in the limit of high temperature. We analyse possible behaviours for these gas parameters {sigma}, {theta} and {beta}, so that -1{<=}{omega}<-1/3, which is the region where the Universe enters an accelerated phase. |
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AbstractList | We investigate early time inflationary scenarios in a Universe filled with a dilute noncommutative bosonic gas at high temperature. A noncommutative bosonic gas is a gas composed of a bosonic scalar field with noncommutative field space on a commutative spacetime. Such noncommutative field theories were recently introduced as a generalization of quantum mechanics on a noncommutative spacetime. Key features of these theories are Lorentz invariance violation and CPT violation. In the present study we use a noncommutative bosonic field theory that, besides the noncommutative parameter {theta}, shows up a further parameter {sigma}. This parameter {sigma} controls the range of the noncommutativity and acts as a regulator for the theory. Both parameters play a key role in the modified dispersion relations of the noncommutative bosonic field, leading to possible striking consequences for phenomenology. In this work we obtain an equation of state p = {omega}({sigma},{theta};{beta}){rho} for the noncommutative bosonic gas relating pressure p and energy density {rho}, in the limit of high temperature. We analyse possible behaviours for these gas parameters {sigma}, {theta} and {beta}, so that -1{<=}{omega}<-1/3, which is the region where the Universe enters an accelerated phase. |
Author | Queiroz, Amilcar R Brito, Francisco A Barosi, Luciano |
Author_xml | – sequence: 1 fullname: Barosi, Luciano – sequence: 2 fullname: Brito, Francisco A – sequence: 3 fullname: Queiroz, Amilcar R |
BackLink | https://www.osti.gov/biblio/22137831$$D View this record in Osti.gov |
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CitedBy_id | crossref_primary_10_1140_epjc_s10052_022_10303_2 crossref_primary_10_1088_1475_7516_2022_07_024 crossref_primary_10_1103_PhysRevD_103_125023 crossref_primary_10_1103_PhysRevD_79_063004 crossref_primary_10_1155_2018_8968732 crossref_primary_10_1103_PhysRevD_94_063531 crossref_primary_10_1103_PhysRevD_91_083503 crossref_primary_10_1103_PhysRevD_84_044005 crossref_primary_10_1140_epjc_s10052_015_3333_9 crossref_primary_10_1103_PhysRevD_81_025005 crossref_primary_10_1103_PhysRevD_98_084047 crossref_primary_10_1142_S0217751X16500573 |
Cites_doi | 10.1088/1126-6708/2003/03/058 10.1142/S0217732301005680 10.1103/PhysRevD.39.683 10.1103/RevModPhys.76.1 10.1016/j.physletb.2004.10.045 10.1103/PhysRevD.67.081301 10.1016/S0370-2693(03)00728-7 10.1016/0370-2693(96)00589-8 10.1103/PhysRevD.71.067702 10.1016/j.physletb.2005.11.034 10.1103/RevModPhys.73.977 10.1142/S0217751X03013879 10.1016/S0370-1573(00)00110-1 10.1088/1126-6708/2002/06/049 10.1088/0264-9381/23/6/005 10.1088/0264-9381/22/17/011 10.1103/PhysRevLett.88.161301 10.1088/1475-7516/2007/11/013 10.1016/S0927-6505(02)00243-8 10.1103/PhysRevD.58.116002 10.1103/PhysRevLett.81.1774 10.1103/PhysRevLett.82.3572 10.1016/j.physletb.2006.02.014 10.1103/PhysRevD.60.116010 10.1016/j.astropartphys.2006.10.004 10.1016/S0370-2693(01)00339-2 10.1016/j.nuclphysb.2006.11.028 10.1016/S0370-1573(03)00059-0 10.1088/0264-9381/20/12/301 10.1080/00107510500392030 10.1016/j.nuclphysb.2003.09.041 10.1103/PhysRevLett.88.190403 10.1103/PhysRevD.41.1231 10.1103/PhysRevD.63.065008 10.1103/PhysRevLett.75.3218 10.1103/PhysRevD.74.047701 10.1088/1475-7516/2007/06/021 10.1103/PhysRevD.67.025001 |
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References | 22 23 25 26 27 28 29 Carmona J M (24) 2003; 2003 Abraham J (10) 2007; 27 Aschieri P (17) 2006; 23 Gibbons G W (39) 2003; 20 Koh S (33) 2007; 2007 Balachandran A P Queiroz A R Marques A M Teotonio-Sobrinho P (38) 2007 30 32 11 12 Aschieri P (16) 2005; 22 13 35 14 36 15 Koh S (34) 2007; 2007 19 Brandenberger R H (37) 2007 1 2 3 4 Akofor E Balachandran A P Jo S G Joseph A Qureshi B A (18) 2007 Lizzi F (31) 2002; 2002 5 6 7 8 9 40 41 20 21 |
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Snippet | We investigate early time inflationary scenarios in a Universe filled with a dilute noncommutative bosonic gas at high temperature. A noncommutative bosonic... |
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SubjectTerms | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COMMUTATION RELATIONS CPT THEOREM DISPERSION RELATIONS ENERGY DENSITY EQUATIONS OF STATE FIELD THEORIES INFLATIONARY UNIVERSE LORENTZ INVARIANCE QUANTUM MECHANICS SCALAR FIELDS SPACE-TIME TEMPERATURE RANGE 0400-1000 K |
Title | Noncommutative field gas driven inflation |
URI | http://iopscience.iop.org/1475-7516/2008/04/005 https://www.osti.gov/biblio/22137831 |
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