Inverse magnetic catalysis: how much do we know about?

Bandyopadhyay, Aritra; Farias, Ricardo L. S.

doi:10.1140/epjs/s11734-021-00023-1

Cited by 36 publications

(14 citation statements)

References 129 publications

(109 reference statements)

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“…For recent reviews on magnetic catalysis and inverse magnetic catalysis see e.g. [64][65][66]. Inverse magnetic catalysis appears also at finite chemical potential where there is a competition between the energy cost of producing quark antiquark pairs and the energy gain due to the chiral condensate.…”

Section: Jhep10(2020)193mentioning

confidence: 99%

Magnetic catalysis and the chiral condensate in holographic QCD

Ballon-Bayona

Shock

Zoakos

2020

J. High Energ. Phys.

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We investigate the effect of a non-zero magnetic field on the chiral condensate using a holographic QCD approach. We extend the model proposed by Iatrakis, Kiritsis and Paredes in [1] that realises chiral symmetry breaking dynamically from 5d tachyon condensation. We calculate the chiral condensate, magnetisation and susceptibilities for the confined and deconfined phases. The model leads, in the probe approximation, to magnetic catalysis of chiral symmetry breaking in both confined and deconfined phases. In the chiral limit, mq = 0, we find that in the deconfined phase a sufficiently strong magnetic field leads to a second order phase transition from the chirally restored phase to a chirally broken phase. The transition becomes a crossover as the quark mass increases. Due to a scaling in the temperature, the chiral transition will also be interpreted as a transition in the temperature for fixed magnetic field. We elaborate on the relationship between the chiral condensate, magnetisation and the (magnetic) free energy density. We compare our results at low and moderate temperatures with lattice QCD results.

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Section: Jhep10(2020)193mentioning

confidence: 99%

Magnetic catalysis and the chiral condensate in holographic QCD

Ballon-Bayona

Shock

Zoakos

2020

J. High Energ. Phys.

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“…Refs. [10][11][12][13]). It has been established that the inverse magnetic catalysis is driven by the sea quark effects rather than the valence quark effects.…”

Section: Introductionmentioning

confidence: 99%

Chiral condensates and screening masses of neutral pseudoscalar mesons in thermomagnetic QCD medium

Ding,

Li,

Liu

et al. 2022

Preprint

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We point out that chiral condensates at nonzero temperature and magnetic fields are in strict connection to the space-time integral of corresponding two-point neutral meson correlation functions in the pseudoscalar channel via the Ward-Takahashi identity. Screening masses of neutral pseudoscalar mesons, which are defined as the exponential decay of the corresponding spatial correlation functions in the long distance, thus are intrinsically connected to (inverse) magnetic catalysis of chiral condensates. To study this we performed lattice simulations of (2 + 1)-flavor QCD on 32 3 × Nt lattices with pion mass Mπ 220 MeV in a fixed scale approach having temperature T ∈ [17, 281] MeV and magnetic field strength eB ∈ [0, 2.5] GeV 2 . We find that screening lengths, i.e. inverses of screening masses of π 0 , K 0 and η 0 ss , turn out to have the similar complex eB and T dependences of the corresponding chiral condensates. Although the transition temperature is found to always decrease as eB grows, we show that the suppression due to magnetic fields becomes less significant for hadron screening length and chiral condensates with heavier quarks involved, and ceases to occur for η 0 ss and strange quark chiral condensate. The complex eB and T dependences of both screening masses and chiral condensates, reflecting the crossover nature of the QCD transition, are attributed to the competition between sea and valence quark effects. These findings could be useful to guide low-energy models and effective theories of QCD.

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“…On the other hand, an inverse magnetic catalysis (IMC) was predicted by LQCD [29] at temperatures close to the pseudocritical temperature. More details about MC and IMC can be seen in [30].…”

Section: Introductionmentioning

confidence: 99%

Magnetized pole-mass of neutral $ρ$ meson within full RPA evaluation

Avancini,

Farias,

Tavares

et al. 2022

Preprint

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Inverse magnetic catalysis: how much do we know about?

Cited by 36 publications

References 129 publications

Magnetic catalysis and the chiral condensate in holographic QCD

Magnetic catalysis and the chiral condensate in holographic QCD

Chiral condensates and screening masses of neutral pseudoscalar mesons in thermomagnetic QCD medium

Magnetized pole-mass of neutral $ρ$ meson within full RPA evaluation

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