Holographic baryonic matter in a background magnetic field

Preis, Florian; Rebhan, Anton; Schmitt, Andreas

doi:10.1088/0954-3899/39/5/054006

Cited by 49 publications

(57 citation statements)

References 91 publications

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“…1 (NJL) and 2 (Sakai-Sugimoto), including all Landau levels. In the latter figure, we also show the chiral phase transition in the presence of homogeneous baryonic matter [17].…”

Section: Inverse Magnetic Catalysismentioning

confidence: 97%

Chiral transition in dense, magnetized matter

Preis

Rebhan

Schmitt

2012

AIP Conference Proceedings

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Abstract.In the presence of a chemical potential, the effect of a magnetic field on chiral symmetry breaking goes beyond the well-known magnetic catalysis. Due to a subtle interplay with the chemical potential, the magnetic field may work not only in favor but also against the chirally broken phase. At sufficiently large coupling, the magnetic field favors the broken phase only for field strengths beyond any conceivable value in nature. Therefore, in the interior of magnetars, a possible transition from chirally broken hadronic matter to chirally symmetric quark matter might occur at smaller densities than previously thought.

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“…1 (NJL) and 2 (Sakai-Sugimoto), including all Landau levels. In the latter figure, we also show the chiral phase transition in the presence of homogeneous baryonic matter [17].…”

Section: Inverse Magnetic Catalysismentioning

confidence: 97%

Chiral transition in dense, magnetized matter

Preis

Rebhan

Schmitt

2012

AIP Conference Proceedings

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“…[29][30][31][32][33] The latter opens a possibility for experimental checks of the effects of a very strong magnetic field in the astrophysical setup because the strong magnetic background should affect certain macroscopic properties of the strongly magnetized neutron stars such as mass, adiabatic index, moment of inertia, and cooling curves.…”

Section: -26mentioning

confidence: 99%

Superconducting properties of vacuum in strong magnetic field

Chernodub

2014

Int. J. Mod. Phys. D

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We discuss superconducting phases of vacuum induced by strong magnetic field in the Electroweak model and in Quantum Chromodynamics at zero temperature. In these phases the vacuum behaves as an anisotropic inhomogeneous superconductor which supports superconductivity along the axis of the magnetic field while in the transversal directions the superconductivity does not exist. The magnetic-field-induced anisotropic superconductivity appears as a result of condensation of electrically charged spin-one particles, which are elementary W bosons in the case of the Electroweak model and composite quark-antiquark pairs with quantum numbers of ρ mesons in the case of QCD. Due to the anisotropic nature of superconductivity the Meissner effect is absent. Intrinsic inhomogeneities of the superconducting ground state are characterized by ensembles of certain topological vortices in an analogy with a mixed Abrikosov state of a type-II superconductivity.Keywords:Q u a n t u mC h r o m o d y n a m i c s ,E l e c t r o w e a kM o d e l ,S t r o n gM a g n e t i cF i e l d ,S uperconductivity PACS numb ers: 11.15. Kc, 12.15.y, 74.90.+n * On leave from ITEP, Moscow, Russia. Strong magnetic fields may lead to many unusual phenomena both in dense matter and in the quantum vacuum. There are various QED effects associated with a critical magnetic field B QED = m 2 e c 3 /~e ⇡ 4.4 ⇥ 10 9 T at which the splitting between zeroth and first Landau electron's levels exceeds the rest energy of an electron, m e c 2 . Such strong fields make the QED vacuum optically birefringent, 1 leading to distortion and magnification of images (a magnetic lens effect), splitting and merging of photons and affecting strongly atomic spectra. 2At much stronger magnetic fields of the order of the QCD scale, B ⇠ 10 16 T various other interesting effects may happen. The magnetic fields of this strength may be created on Earth in heavy-ion collisions at the Large Hadron Collider at CERN in Europe and at Relativistic Heavy-Ion Collider at Brookhaven National Laboratory in the U.S.A..3-5 The colliding ions create the a plasma made of hot quarks, antiquarks and gluons, which are subjected to a short-lived strong magnetic field if the collisions are not central.6 Similar conditions may have also existed in the very early moments of our Universe. 7The chiral magnetic effect 6, 8-11 provides a particularly interesting example of the influence of the magnetic field on hot quark matter. Topological processes at the QCD scale may lead to a chiral asymmetry of quark matter which is characterized by a unequal densities of left and right quarks. The magnetic field may generate a dissipationless electric current in the parity-odd quark-gluon plasma leading to potentially observable phenomena in heavy-ion collisions. 12-15The hadron-scale magnetic field should also induce so-called magnetic catalysis, 16-20 which implies, in particular, a steady enhancement of chiral symmetry breaking in the cold QCD vacuum as the external magnetic field strengthens. A strong magnetic field ba...

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“…To find the value of the gradient ∇ϕ we need to solve (53) and (54). The result will not be as simple as (50).…”

Section: The Pion Gradient Phasementioning

confidence: 99%

A Review of Magnetic Phenomena in Probe-Brane Holographic Matter

Bergman

Erdmenger

Lifschytz

2013

Strongly Interacting Matter in Magnetic Fields

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Gauge/gravity duality is a useful and efficient tool for addressing and studying questions related to strongly interacting systems described by a gauge theory. In this manuscript we will review a number of interesting phenomena that occur in such systems when a background magnetic field is turned on. Specifically, we will discuss holographic models for systems that include matter fields in the fundamental representation of the gauge group, which are incorporated by adding probe branes into the gravitational background dual to the gauge theory. We include three models in this review: the D3-D7 and D4-D8 models, that describe four-dimensional systems, and the D3-D7' model, that describes three-dimensional fermions interacting with a four-dimensional gauge field. *

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Holographic baryonic matter in a background magnetic field

Cited by 49 publications

References 91 publications

Chiral transition in dense, magnetized matter

Chiral transition in dense, magnetized matter

Superconducting properties of vacuum in strong magnetic field

A Review of Magnetic Phenomena in Probe-Brane Holographic Matter

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