Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Jens O. Andersen"'
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 2, Pp 1-35 (2022)
Abstract The non-linear dynamics of long-wavelength cosmological fluctuations may be phrased in terms of an effective classical, but stochastic evolution equation. The stochastic noise represents short-wavelength modes that continually redshift into
Externí odkaz:
https://doaj.org/article/0ab30ea9ed1449f6b6acc5edf66cddf5
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 5, Pp 1-12 (2021)
Abstract We calculate the light-quark condensate, the strange-quark condensate, the pion condensate, and the axial condensate in three-flavor chiral perturbation theory ( $$\chi $$ χ PT) in the presence of an isospin chemical potential at next-to-le
Externí odkaz:
https://doaj.org/article/a7918c8147ee45d1a4c3943570b9b34b
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-28 (2021)
Abstract Inflation is often described through the dynamics of a scalar field, slow-rolling in a suitable potential. Ultimately, this inflaton must be identified with the expectation value of a quantum field, evolving in a quantum effective potential.
Externí odkaz:
https://doaj.org/article/a8e5c0636717408187260134b023288b
Condensates and pressure of two-flavor chiral perturbation theory at nonzero isospin and temperature
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 2, Pp 1-11 (2021)
Abstract We consider two-flavor chiral perturbation theory ( $$\chi $$ χ PT) at finite isospin chemical potential $$\mu _I$$ μ I and finite temperature T. We calculate the effective potential and the quark and pion condensates as functions of T and
Externí odkaz:
https://doaj.org/article/d1d79724f32b4593923ddaf51669bbb0
Autor:
Prabal Adhikari, Jens O. Andersen
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 11, Pp 1-11 (2020)
Abstract In this paper, we consider two-flavor QCD at zero temperature and finite isospin chemical potential $$\mu _I$$ μ I using a model-independent analysis within chiral perturbation theory at next-to-leading order. We calculate the effective pot
Externí odkaz:
https://doaj.org/article/5f40d15f0b98436fa331c805faa1fc06
Autor:
Prabal Adhikari, Jens O. Andersen
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 6, Pp 1-38 (2020)
Abstract We consider three-flavor chiral perturbation theory (χPT) at zero temperature and nonzero isospin (μ I ) and strange (μ S ) chemical potentials. The effective potential is calculated to next-to-leading order (NLO) in the π ± -condensed
Externí odkaz:
https://doaj.org/article/9cbe25b386244d4eb1c0602d79afd0b6
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 10, Pp 1-13 (2019)
Abstract In this paper, we calculate the equation of state of two-flavor finite isospin chiral perturbation theory at next-to-leading order in the pion-condensed phase at zero temperature. We show that the transition from the vacuum phase to a Bose-c
Externí odkaz:
https://doaj.org/article/d96ab98555fa4dc490b32b309de3cf98
Autor:
Prabal Adhikari, Jens O. Andersen
Publikováno v:
Physics Letters B, Vol 804, Iss , Pp - (2020)
We consider the thermodynamics of three-flavor QCD in the pion-condensed phase at nonzero isospin chemical potential (μI) and vanishing temperature using chiral perturbation theory in the isospin limit. The transition from the vacuum phase to a supe
Externí odkaz:
https://doaj.org/article/b95f493838064572944e3c4e4b03e799
Publikováno v:
Physical Review
We use three-flavor chiral perturbation theory ($\chi$PT) to calculate the pressure, light and $s$-quark condensates of QCD in the confined phase at finite temperature to ${\cal O}(p^6)$ in the low-energy expansion. We also include electromagnetic ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab1d90c7bf65fd3e03f2cdc11415d5cf
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http://repo.scoap3.org/api
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 5, Pp 1-12 (2021)
European Physical Journal
European Physical Journal
We calculate the light quark condensate, the strange quark condensate, the pion condensate, and the axial condensate in three-flavor chiral perturbation theory ($\chi$PT) in the presence of an isospin chemical potential at next-to-leading order at ze
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64652c228cd7a3bae69f7be19159bdc5
https://doaj.org/article/a7918c8147ee45d1a4c3943570b9b34b
https://doaj.org/article/a7918c8147ee45d1a4c3943570b9b34b