Engineering holographic phase diagrams

Chen, Jiunn-Wei; Dai, Shou-Huang; Maity, Debaprasad; Zhang, Yun-Long

doi:10.1103/physrevd.94.086004

Cited by 7 publications

(7 citation statements)

References 65 publications

(113 reference statements)

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“…Since many high temperature superconductors are believed to be strongly coupled, the holographic tool has also been used to mimic the phase diagram of high Tc superconductors [10,11]. In these studies, an important issue is to deal with systems with multiple order parameters.…”

Section: Introductionmentioning

confidence: 99%

Split degenerate states and stable p $$+i$$ + i p phases from holography

et al. 2017

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In this paper, we investigate the p+ip superfluid phases in the complex vector field holographic p-wave model. We find that in the probe limit, the p+ip phase and the p-wave phase are equally stable, hence the p and ip orders can be mixed with an arbitrary ratio to form more general p+λip phases, which are also equally stable with the p-wave and p+ip phases. As a result, the system possesses a degenerate thermal state in the superfluid region. We further study the case on considering the back-reaction on the metric, and we find that the degenerate ground states will be separated into pwave and p+ip phases, and the p-wave phase is more stable. Finally, due to the different critical temperature of the zeroth order phase transitions from p-wave and p+ip phases to the normal phase, there is a temperature region where the p+ip phase exists but the p-wave phase does not. In this region we find the stable holographic p+ip phase for the first time.

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Section: Introductionmentioning

confidence: 99%

Split degenerate states and stable p $$+i$$ + i p phases from holography

et al. 2017

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“…(6), (7), (19) and aforementioned form factors Eqs. (20) and (21) into Eq. (5) and using the so-called covariant instantaneous approximation [35], p l = q l (which ensures that the BS equation is still covariant after this approximation).…”

Section: The Bethe-salpeter Formalism For Bk Systemmentioning

confidence: 99%

“…In Refs. [19,20], the authors showed that X(5568) or X(5616) could not be assigned to be an BK or B * K molecular state. X(5568) is also disfavored as a P -wave coupled-channel scattering molecule involving the states B s π, B * s π, BK and B * K in Ref.…”

Section: Introductionmentioning

confidence: 99%

Studying the Bound State of the BK¯ System in the Bethe-Salpeter Formalism

Wang

Guo

2019

Advances in High Energy Physics

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In this work, we study the BK molecule in the Bethe-Salpeter (BS) equation approach. With the kernel containing one-particle-exchange diagrams and introducing two different form factors (monopole form factor and dipole form factor) in the vertex, we solve the BS equation numerically in the covariant instantaneous approximation. We investigate the isoscalar and isovector BK systems, and we find X(5568) cannot be a BK molecule.

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“…Recently, the technique of realizing various phase transition order parameters in holographic superconductor models have been applied to the study the competition and coexistence of multiple order parameters [10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34]. The authors of ref.…”

Section: Introductionmentioning

confidence: 99%

Competing s-wave orders from Einstein–Gauss–Bonnet gravity

Nie

2018

Physics Letters B

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In this paper, the holographic superconductor model with two s-wave orders from 4+1 dimensional Einstein-Gauss-Bonnet gravity is explored in the probe limit. At different values of the Gauss-Bonnet coefficient α, we study the influence of tuning the mass and charge parameters of the bulk scalar field on the free energy curve of condensed solution with signal s-wave order, and compare the difference of tuning the two different parameters while the changes of the critical temperature are the same. Based on the above results, it is indicated that the two free energy curves of different s-wave orders can have one or two intersection points, where two typical phase transition behaviors of the s+s coexistent phase, including the reentrant phase transition near the Chern-Simons limit α = 0.25, can be found. We also give an explanation to the nontrivial behavior of the T c − α curves near the Chern-Simons limit, which might be heuristic to understand the origin of the reentrant behavior near the Chern-Simons limit.

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Engineering holographic phase diagrams

Cited by 7 publications

References 65 publications

Split degenerate states and stable p $$+i$$ + i p phases from holography

Split degenerate states and stable p $$+i$$ + i p phases from holography

Studying the Bound State of the BK¯ System in the Bethe-Salpeter Formalism

Competing s-wave orders from Einstein–Gauss–Bonnet gravity

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