Anisotropic plasma at finite U(1) chemical potential

Cheng, Long; Ge, Xian-Hui; Sin, Sang-Jin

doi:10.1007/jhep07(2014)083

Cited by 55 publications

(87 citation statements)

References 98 publications

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“…by combining the variation of the first line of (3.13) with respect to T , µ, β 2 and B: 22) and the variation of (3.18).…”

Section: Jhep07(2015)027mentioning

confidence: 99%

“…Massive gravity models studied in [9][10][11][12][13] give mass terms to gravitons, which break the spatial diffeomorphisms (not the radial and temporal ones), and consequently break momentum conservation of the boundary field theory with translational invariance unbroken [11]. Holographic Q-lattice models and those with massless linear dilaton/axion fields [14][15][16][17][18][19][20][21][22][23] take the advantage of a continuous global symmetry of the bulk theory. Some other models utilise a Bianchi VII 0 symmetry…”

Section: Introductionmentioning

confidence: 99%

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Thermoelectric conductivities at finite magnetic field and the Nernst effect

Kim

Seo

et al. 2015

J. High Energ. Phys.

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132

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Abstract:We study the thermoelectric conductivities of a strongly correlated system in the presence of a magnetic field by the gauge/gravity duality. We consider a class of Einstein-Maxwell-Dilaton theories with axion fields imposing momentum relaxation. General analytic formulas for the direct current (DC) conductivities and the Nernst signal are derived in terms of the black hole horizon data. For an explicit model study, we analyse in detail the dyonic black hole modified by momentum relaxation. In this model, for small momentum relaxation, the Nernst signal shows a bell-shaped dependence on the magnetic field, which is a feature of the normal phase of cuprates. We compute all alternating current (AC) electric, thermoelectric, and thermal conductivities by numerical analysis and confirm that their zero frequency limits precisely reproduce our analytic DC formulas, which is a non-trivial consistency check of our methods. We discuss the momentum relaxation effects on the conductivities including cyclotron resonance poles.

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“…by combining the variation of the first line of (3.13) with respect to T , µ, β 2 and B: 22) and the variation of (3.18).…”

Section: Jhep07(2015)027mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermoelectric conductivities at finite magnetic field and the Nernst effect

Kim

Seo

et al. 2015

J. High Energ. Phys.

Self Cite

132

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“…The rotational SO(3) symmetry in the space directions is broken by the new term down to SO (2) in the xy-plane. Various observables have been computed for this plasma, see for example [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] for a non-exhaustive list. 1 However, one of the important phenomena that has so far eluded scrutiny are precisely the phase transitions of fundamental matter mentioned above.…”

Section: Jhep11(2016)132mentioning

confidence: 99%

Thermodynamics of anisotropic branes

Ávila

Fernández

Patiño

et al. 2016

J. High Energ. Phys.

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Abstract:We study the thermodynamics of flavor D7-branes embedded in an anisotropic black brane solution of type IIB supergravity. The flavor branes undergo a phase transition between a 'Minkowski embedding', in which they lie outside of the horizon, and a 'black hole embedding', in which they fall into the horizon. This transition depends on the black hole temperature, its degree of anisotropy, and the mass of the flavor degrees of freedom. It happens either at a critical temperature or at a critical anisotropy. A general lesson we learn from this analysis is that the anisotropy, in this particular realization, induces similar effects as the temperature. In particular, increasing the anisotropy bends the branes more and more into the horizon. Moreover, we observe that the transition becomes smoother for higher anisotropies.

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“…[258] -see also Refs. [259,260] for extensions of this axion+dilaton model; the result resembles some qualitative features of the viscosities obtained from the magnetic brane background as we shall see ahead. By the same token, one can find model with a dilaton driven anisotropy [261,262], an anisotropic SU (2) model used for superfluids [263][264][265], and a black brane whose temperature is modulated by the spatial directions x [266,267].…”

Section: Corrections Tosupporting

confidence: 48%

Strongly coupled non-Abelian plasmas in a magnetic field

Critelli¹

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Plasmas não-Abelianos fortemente acoplados em um campo magnético (Strongly coupled non-Abelian plasmas in a magnetic field). São Paulo, 2016. Nesta dissertação utilizamos uma abordagem via dualidade gauge/gravity para estudar a dinâmica de plasmas não-Abelianos fortemente interagentes. Nosso objetivo último visa aplicações para o plasma de quarks e glúons (QGP), cujo interesse científico cresceu exponencialmente depois de sua descoberta em meados dos anos 2000 ao colidir-se íons ultrarelativísticos. Dissertação (Mestrado)-Podemos enriquecer a dinâmica do QGP ao adicionarmos campos externos, como o potencial químico (para exploração do diagrama de fases hadrônico), ou um campo magnético. Nesta dissertação, tomamos como norte a exploração dos efeitos magnéticos. De fato, acredita-se que campos magnéticos da ordem de eB ∼ 10m 2 π sejam criados nos estágios iniciais do QGP.O observável escolhido para sondar possíveis efeitos do campo magnético no QGP foi a viscosidade, em partes pelo famoso resultado η/s = 1/4π obtido holograficamente. Utilizamos num primeiro momento uma caricatura da QCD, a N = 4 super Yang-Mills para calcular o que muda na viscosidade com o advento do campo magnético. Devemos salientar, contudo, que um plasma altamente magnetizado possui a priori sete coeficientes de viscosidade (cinco de cisalhamento e duas volumétricas). Também exploramos, nesse mesmo modelo, o potencial de um par pesado de quark-antiquark na presença de um campo magnético.Por fim, propomos um modelo holográfico fenomenológico mais semelhante a QCD, sendo ele "calibrado" pelos dados da QCD na rede, para estudar a termodinâmica e a viscosidade do QGP imerso num forte campo magnético. In this dissertation we use the gauge/gravity duality approach to study the dynamics of strongly coupled non-Abelian plasmas. Ultimately, we want to understand the properties of the quark-gluon plasma (QGP), whose scientifc interest by the scientific community escalated exponentially after its discovery in the 2000's through the collision of ultrarelativistic heavy ions.One can enrich the dynamics of the QGP by adding an external field, such as the baryon chemical potential (needed to study the QCD phase diagram), or a magnetic field. In this dissertation, we choose to investigate the magnetic effects. Indeed, there are compelling evidences that strong magnetic fields of the order eB ∼ 10m 2 π are created in the early stages of ultrarelativistic heavy ion collisions.The chosen observable to scan possible effects of the magnetic field on the QGP was the viscosity, due to the famous result η/s = 1/4π obtained via holography. In a first approach we use a caricature of the QGP, the N = 4 super Yang-Mills plasma to calculate the deviations of the viscosity as we add a magnetic field. We must emphasize, though, that a magnetized plasma has a priori seven viscosity coefficients (five shears and two bulks). In addition, we also study in this same model the anisotropic heavy quark-antiquark potential in the presence of a magnetic field.In the end, we propose ...

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Anisotropic plasma at finite U(1) chemical potential

Cited by 55 publications

References 98 publications

Thermoelectric conductivities at finite magnetic field and the Nernst effect

Thermoelectric conductivities at finite magnetic field and the Nernst effect

Thermodynamics of anisotropic branes

Strongly coupled non-Abelian plasmas in a magnetic field

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