Holographic bilayer/monolayer phase transitions

Filev, Veselin G.; Ihl, Matthias; Zoakos, Dimitrios

doi:10.1007/jhep07(2014)043

Cited by 9 publications

(6 citation statements)

References 35 publications

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“…It is for this reason that we will concentrate on the system with a magnetic field, with the assumption that the very low energy states of the theory are the most important for the physics of exciton formation, and that this situation persists to strong coupling. There have been a number of works which have used D branes to model double monolayers [55]- [60]. both charge neutral, the branes will join for any value of the separation L. In this strongly coupled defect quantum field theory, with vanishing magnetic field and vanishing charge density on both monolayers, the inter-layer exciton condensate exists for any value of the inter-layer distance.…”

Section: Introductionmentioning

confidence: 99%

Holographic D3-probe-D5 model of a double layer Dirac semimetal

Grignani

Kim

Marini

et al. 2014

J. High Energ. Phys.

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The possibility of inter-layer exciton condensation in a holographic D3-probe-D5 brane model of a strongly coupled double monolayer Dirac semi-metal in a magnetic field is studied in detail. It is found that, when the charge densities on the layers are exactly balanced so that, at weak coupling, the Fermi surfaces of electrons in one monolayer and holes in the other monolayer would be perfectly nested, inter-layer condensates can form for any separation of the layers. The case where both monolayers are charge neutral is special. There, the inter-layer condensate occurs only for small separations and is replaced by an intra-layer exciton condensate at larger separations. The phase diagram for charge balanced monolayers for a range layer separations and chemical potentials is found. We also show that, in semi-metals with multiple species of massless fermions, the balance of charges required for Fermi surface nesting can occur spontaneously by breaking some of the internal symmetry of the monolayers. This could have important consequences for experimental attempts to find inter-layer condensates.

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Section: Introductionmentioning

confidence: 99%

Holographic D3-probe-D5 model of a double layer Dirac semimetal

Grignani

Kim

Marini

et al. 2014

J. High Energ. Phys.

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“…[65], embedding U-like probe D5-branes alternatively, refs. [66,67,85], into the KW gravity dual, corresponding to adding defect flavored quarks to its dual gauge theory with spontaneous breakdown of the conformal and chiral flavor symmetry. In the KW gravity dual, the probe D5-brane wraps some of the dual spacetime coordinates, including adS 4 ⊂adS 5 , given by ft, x i , rg (i = 1, 2) in the 0124-directions, and the two-sphere S 2 ⊂T 1,1 parametrized by θ 1 , ϕ 1 in the 56directions.…”

Section: U-like Embedded Probe D5-branes Wrapping Ads 4 ×mentioning

confidence: 99%

“…The holographic model we consider is the Ben-Ami-Kuperstein-Sonnenschein (BKS) embedding model of D3and D5-branes, [65] (see also ref. [66,67]), dual to dCFTs. The model follows the earlier Kuperstein-Sonnenschein holographic embedding model of D7-branes, ref.…”

Section: Introductionmentioning

confidence: 99%

Dp-brane Dynamics and Thermalization in Type IIB Ben Ami-Kuperstein-Sonnenschein Models

Kaviani

2020

Advances in High Energy Physics

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We extend and complete our analysis arXiv:1608.02380 and study the induced world volume metrics and Hawking temperatures of all type IIB rotating probe Dp-branes, dual to the temperature of different flavors at finite R-charge, in the Ben Ami–Kuperstein–Sonnenschein holographic models including the effects of spontaneous conformal and chiral flavor symmetry breakdown. The model embeds type IIB probe flavor Dp-branes into the Klebanov-Witten gravity dual of conformal gauge theory, with the embedding parameter, given by the minimal radial extension of the probes, dual to the IR scale of conformal and chiral flavor symmetry breakdown. We show that when the minimal extension is positive definite, the induced world volume metrics of type IIB rotating probe branes admit thermal horizons and Hawking temperatures despite the absence of black holes in the bulk subject to the world volume and topology of the nontrivial internal cycle wrapped by the probe. We also derive the energy–stress tensor of the thermal probes and study their backreaction and energy dissipation. We show that at the IR scale the backreaction is nonnegligible and find the energy can flow from the probes to the bulk, dual to the energy dissipation from the flavor sectors into the gauge theory.

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“…The model we consider consists of the Ben Ami-Kuperstein-Sonnenschein (BKS) holographic model, [28] (see also ref. [29] -extending the model to finite temperature and density). Motivated by the Kuperstein-Sonnenschein model, ref.…”

Section: Introductionmentioning

confidence: 99%

D7-brane dynamics and thermalization in the Kuperstein–Sonnenschein model

Kaviani

2017

Nuclear Physics B

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We study the world volume Hawking temperature of all type IIB rotating probe Dp-branes, dual to the temperature of different flavors at finite R-charge, in the Ben Ami-Kuperstein-Sonnenschein holographic models including the effects of spontaneous breakdown of the conformal and chiral flavor symmetry. The model embeds type IIB probe flavor Dp-branes into the Klebanov-Witten gravity dual of conformal gauge theory, with the embedding parameter, given by the minimal radial extension of the probes, setting the IR scale of conformal and chiral flavor symmetry breakdown. We show that when the minimal extension is positive definite and additional spin is switched on, the induced world volume metrics of only certain type IIB probe branes admit thermal horizons and Hawking temperatures despite the absence of black holes in the bulk. We find that the world volume black hole nucleation is non-trivial and depends on the world volume dimension and topology of the non-trivial internal cycle wrapped by the probe. We find, in addition, that by varying the minimal extension of the probe, large hierarchies of temperature scales get produced, with the temperature behavior varying dramatically, depending on the type of probe. We also derive the energy-stress tensor of the thermal probes and study their backreaction and energy dissipation. We show that at the IR scale the backreaction is non-negligible and find the energy can flow from the probes to the bulk, dual to the energy dissipation from the flavor sectors into the gauge theory.

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Holographic bilayer/monolayer phase transitions

Cited by 9 publications

References 35 publications

Holographic D3-probe-D5 model of a double layer Dirac semimetal

Holographic D3-probe-D5 model of a double layer Dirac semimetal

Dp-brane Dynamics and Thermalization in Type IIB Ben Ami-Kuperstein-Sonnenschein Models

D7-brane dynamics and thermalization in the Kuperstein–Sonnenschein model

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