Chiral phase transition of QCD with N f = 2 + 1 flavors from holography

Li, Danning; Huang, Mei

doi:10.1007/jhep02(2017)042

Cited by 39 publications

(31 citation statements)

References 110 publications

(153 reference statements)

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“…In this case, one can check S a , π b , η vanish if there are no extra source of the corresponding operator. The phase structure in this situation has been studied in [52][53][54][55][56][57][58][59][60][61][62][63][64] . In this work, since we would like to discuss the effects of isospin chemical potential on phase transition, we have to take non-vanishing V M , A M .…”

Section: Soft Wall Model With Finite Isospin Chemical Potentialmentioning

confidence: 99%

“…In [55,57,58,63], we have shown that the qualitative properties of chiral phase transition could be well described when the dilaton profile takes the following form…”

Section: Soft Wall Model With Finite Isospin Chemical Potentialmentioning

confidence: 99%

“…Its extended models [39][40][41][42][43][44][45][46][47][48][49][50][51] could predict meson spectra in good agreement with experimental data. It is also easy to be extended to finite temperature and give good description of chiral phase transition [52][53][54][55][56][57][58][59][60][61][62][63][64] (see also other bottom-up holographic models [65][66][67][68][69][70]). Thus, we will follow the idea of [34] and introduce temperature T and isospin chemical potential µ I in soft-wall model.…”

Section: Introductionmentioning

confidence: 99%

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Pion condensation in a soft-wall AdS/QCD model

2019

J. High Energ. Phys.

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Finite isospin chemical potential µ I and temperature T have been introduced in the framework of soft-wall AdS/QCD model. By self-consistently solve the equation of motion, we obtain the phase boundary of pion condensation phase, across which the system undergoes a phase transition between pion condensation phase and normal phase. Comparing the free energy of solutions with and without pion condensation, we find that the phase transition is of first order type both at large µ I and small µ I . Qualitatively, the behavior at large µ I is in agreement with the lattice simulation in Phys. Rev.D66(2002)034505, while the behavior at small µ I is different from lattice simulations and previous studies in hard wall AdS/QCD model. This indicates that a full back-reaction model including the interaction of gluo-dynamics and chiral dynamics might be necessary to describe the small µ I pion condensation phase. This study could provide certain clues to build a more realistic holographic model.

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Section: Soft Wall Model With Finite Isospin Chemical Potentialmentioning

confidence: 99%

“…In [55,57,58,63], we have shown that the qualitative properties of chiral phase transition could be well described when the dilaton profile takes the following form…”

Section: Soft Wall Model With Finite Isospin Chemical Potentialmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pion condensation in a soft-wall AdS/QCD model

2019

J. High Energ. Phys.

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“…The deconfinement phase transition has been widely discussed with the expectation value of Polyakov loop as the order parameter of deconfinement phase transition. However, till recently, the dynamical spontaneous chiral symmetry breaking and chiral phase transition have been realized in soft-wall holographic QCD model [99][100][101][102][103][104][105][106][107][108][109][110][111][112][113][114][115][116] with the chiral condensate as the order parameter.…”

Section: Introductionmentioning

confidence: 99%

Quarkyonic phase from quenched dynamical holographic QCD model

Chen

Hou

et al. 2020

J. High Energ. Phys.

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Chiral and deconfinement phase transitions at finite temperature T and quark number chemical potential µ are simultaneously studied in the quenched dynamical holographic QCD model within the Einstein-Dilaton-Maxwell framework. By calculating the corresponding order parameters, i.e., the chiral condensate and Polyakov loop, it is shown that the transition lines of these two phase transitions are separated in the T −µ plane. The deconfinement phase transition is shown to be always of crossover type and the transition line depends weakly on the baryon number density. Differently, the chiral transition is of crossover at small baryon number density and it turns to be of first order at sufficient large baryon number density. A critical endpoint (CEP), at which the transition becomes second order type, appears in the chiral transition line. This is the first time to realize the CEP of chiral phase transition in the (T,µ) plane in the framework of dynamical holographic QCD model. It is observed that between these two phase transition lines, there is a region with chiral symmetry restored and color degrees still confined, which could be considered as the quarkyonic phase. Qualitatively, this behavior is in consistent with the result in the Polyakov-loop improved Nambu-Jona-Lasinio (PNJL) model.

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“…By considering heavy quarks we further our exploration of the QCD phase diagram, specifically the Columbia Plot which characterizes the phase transition as a function of m u,d and m s [15]. We explore a 3-flavor symmetric model (m l = m u,d = m s ) and a 2+1-flavor model (m l = m u,d = m s ), extending the work of [16] to finite quark chemical potential.…”

Section: Introductionmentioning

confidence: 99%

Chiral phase diagram in soft-wall AdS/QCD

Bartz¹,

Jacobson²

2018

Proceedings of Critical Point and Onset of Deconfinement — PoS(CPOD2017)

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The holographic connection between strongly-coupled gauge theories and extra-dimensional gravitational theories has succeeded in describing many features of non-perturbative QCD. Phenomenological models called AdS/QCD use a five-dimensional AdS black hole to study thermodynamic properties of the quark-gluon plasma. In this talk, we focus on the phase transition that occurs as chiral symmetry is restored at high temperature and chemical potential. Using a Reissner-Nordström metric for a charged black hole, we find a critical temperature around 150 MeV and a critical quark chemical potential around 560 MeV. We qualitatively reproduce the Columbia plot, showing the dependence of the phase transition order on the light and strange quark masses. We show that the introduction of a chemical potential does not affect the order of the phase transition, implying the absence of a critical point in this simple model.

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Chiral phase transition of QCD with N f = 2 + 1 flavors from holography

Cited by 39 publications

References 110 publications

Pion condensation in a soft-wall AdS/QCD model

Pion condensation in a soft-wall AdS/QCD model

Quarkyonic phase from quenched dynamical holographic QCD model

Chiral phase diagram in soft-wall AdS/QCD

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