The flavoured BFSS model at high temperature

Yuhma Asano (School of Theoretical Physics, Dublin Institute for Advanced Studies, 10 Burlington Road, Dublin 4, Ireland) ; Veselin Filev (School of Theoretical Physics, Dublin Institute for Advanced Studies, 10 Burlington Road, Dublin 4, Ireland) ; Samuel Kováčik (Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava, Mlynská dolina, Bratislava, 842 48, Slovakia; School of Theoretical Physics, Dublin Institute for Advanced Studies, 10 Burlington Road, Dublin 4, Ireland) ; Denjoe O’Connor (School of Theoretical Physics, Dublin Institute for Advanced Studies, 10 Burlington Road, Dublin 4, Ireland)

We study the high-temperature series expansion of the Berkooz-Douglas matrix model, which describes the D0/D4-brane system. At high temperature the model is weakly coupled and we develop the series to second order. We check our results against the high-temperature regime of the bosonic model (without fermions) and find excellent agreement. We track the temperature dependence of the bosonic model and find backreaction of the fundamental fields lifts the zero-temperature adjoint mass degeneracy. In the low-temperature phase the system is well described by a gaussian model with three masses m A t  = 1.964 ± 0.003, m A l  = 2.001 ± 0.003 and m f  = 1.463 ± 0.001, the adjoint longitudinal and transverse masses and the mass of the fundamental fields respectively.

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      "source": "Springer/SISSA", 
      "value": "We study the high-temperature series expansion of the Berkooz-Douglas matrix model, which describes the D0/D4-brane system. At high temperature the model is weakly coupled and we develop the series to second order. We check our results against the high-temperature regime of the bosonic model (without fermions) and find excellent agreement. We track the temperature dependence of the bosonic model and find backreaction of the fundamental fields lifts the zero-temperature adjoint mass degeneracy. In the low-temperature phase the system is well described by a gaussian model with three masses m A t \u2009=\u20091.964\u2009\u00b1\u20090.003, m A l \u2009=\u20092.001\u2009\u00b1\u20090.003 and m f \u2009=\u20091.463\u2009\u00b1\u20090.001, the adjoint longitudinal and transverse masses and the mass of the fundamental fields respectively."
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Published on:
25 January 2017
Publisher:
Springer/SISSA
Published in:
Journal of High Energy Physics (2017)

DOI:
https://doi.org/10.1007/JHEP01(2017)113
arXiv:
1605.05597
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: