Holographic Superfluid and STU Model

Saadat, Hassan; Pourhassan, B.

doi:10.1007/s10773-012-1412-3

Cited by 11 publications

(7 citation statements)

References 22 publications

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“…Special case of STU model in 5 dimensions with three electric charges which admits a chemical potential for the U (1) 3 symmetry already used to study QGP which is called STU/QCD correspondence [35][36][37][38][39]. Also D = 5, N = 2 STU model considered as dual picture of superfluid [40]. Motivated by the evidence of superconductive detector for moving magnetic monopoles [21], we would like to investigate effect of magnetic charge on the conductivities.…”

Section: Introductionmentioning

confidence: 99%

Holographic superconductor in a deformed four-dimensional STU model

Pourhassan¹,

Bagheri–Mohagheghi²

2017

Eur. Phys. J. C

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In this paper, we consider a deformed STU model in four dimensions including both electric and magnetic charges. Using the AdS/CFT correspondence, we study holographic superconductors and obtain transport properties like electrical and thermal conductivities. We obtain transport properties in terms of the magnetic charge of the black hole and interpret it as the magnetic monopole of dual field theory. We find that the presence of the magnetic charge is necessary to have maximum conductivities, and the existence of a magnetic monopole with a critical charge (137 e) to reach the maximum superconductivity is important. Also, we show that the thermal conductivity increases with increasing of the magnetic charge. It may be concluded that the origin of superconductivity is the magnetic monopole.

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Section: Introductionmentioning

confidence: 99%

Holographic superconductor in a deformed four-dimensional STU model

Pourhassan¹,

Bagheri–Mohagheghi²

2017

Eur. Phys. J. C

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“…Bozza compared the image patterns for several interesting backgrounds and showed that by the separation of the first two relativistic images we can distinguish two different collapsed objects. Further development for other black holes can be found in [26]- [33]. Several interesting studeies are devoted to lensing by naked singularities [34,35], Janis-Newman-Winicour metric [25] and role of scaler field in gravitational lensing [36].…”

Section: Introductionmentioning

confidence: 99%

Strong gravitational lensing in a charged squashed Kaluza–Klein Gödel black hole

2014

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In this paper we investigate the strong gravitational lansing in a charged squashed Kaluza-Klein Gödel black hole. The deflection angle is considered by the logarithmic term proposed by Bozza et al. Then we study the variation of deflection angle and its parametersā andb . We suppose that the supermassive black hole in the galaxy center can be considered by a charged squashed Kaluza-Klein black hole in a Gödel background and by relation between lensing parameters and observables, we estimate the observables for different values of charge, extra dimension and Gödel parameters.

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“…Bozza compared the image patterns for several interesting backgrounds and showed that by the separation of the first two relativistic images, we can distinguish two different collapsed objects. Further studies were developed for other black holes and metrics [15]- [31]. The gravitational lenses are important tools for probing the universe.…”

Section: Introductionmentioning

confidence: 99%

Strong gravitational lensing with Gauss-Bonnet correction

Sadeghi¹,

Vaez²

2014

J. Cosmol. Astropart. Phys.

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In this paper we investigate the strong gravitational lensing in a five dimensional background with Gauss-Bonnet gravity, so that in 4-dimensions the Gauss-Bonnet correction disappears. By considering the logarithmic term for deflection angle, we obtain the deflection angleα and corresponding parametersā andb. Finally, we estimate some properties of relativistic images such as θ ∞ , s and r m .

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Holographic Superfluid and STU Model

Cited by 11 publications

References 22 publications

Holographic superconductor in a deformed four-dimensional STU model

Holographic superconductor in a deformed four-dimensional STU model

Strong gravitational lensing in a charged squashed Kaluza–Klein Gödel black hole

Strong gravitational lensing with Gauss-Bonnet correction

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