Dynamics of the probe brane in the background of intersecting five-branes

J. Klusoň

doi:10.1103/physrevd.73.106008

Electromagnetic instability and Schwinger effect in the Witten–Sakai–Sugimoto model with D0–D4 background

The European Physical Journal C ◽

10.1140/epjc/s10052-019-7404-1 ◽

2019 ◽

Vol 79 (11) ◽

Author(s):

Wenhe Cai ◽

Kang-le Li ◽

Si-wen Li

Keyword(s):

Phase Transition ◽

Decay Rate ◽

Temperature Limit ◽

Zero Temperature ◽

Vacuum Decay ◽

Constant Electromagnetic Field ◽

Schwinger Effect ◽

Electromagnetic Instability ◽

Probe Brane ◽

Chiral Potential

Abstract Using the Witten–Sakai–Sugimoto model in the D0–D4 background, we holographically compute the vacuum decay rate of the Schwinger effect in this model. Our calculation contains the influence of the D0-brane density which could be identified as the $$\theta $$θ angle or chiral potential in QCD. Under the strong electromagnetic fields, the instability appears due to the creation of quark–antiquark pairs and the associated decay rate can be obtained by evaluating the imaginary part of the effective Euler–Heisenberg action which is identified as the action of the probe brane with a constant electromagnetic field. In the bubble D0–D4 configuration, we find the decay rate decreases when the $$\theta $$θ angle increases since the vacuum becomes heavier in the present of the glue condensate in this system. And the decay rate matches to the result in the black D0–D4 configuration at zero temperature limit according to our calculations. In this sense, the Hawking–Page transition of this model could be consistently interpreted as the confined/deconfined phase transition. Additionally there is another instability from the D0-brane itself in this system and we suggest that this instability reflects to the vacuum decay triggered by the $$\theta $$θ angle as it is known in the $$\theta $$θ-dependent QCD.

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Probe brane dynamics on cosmological brane backgrounds

Physics Letters B ◽

10.1016/j.physletb.2014.10.030 ◽

2014 ◽

Vol 738 ◽

pp. 493-498 ◽

Cited By ~ 4

Author(s):

Kunihito Uzawa ◽

Kentaroh Yoshida

Keyword(s):

Probe Brane

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FUNDAMENTAL STRING (MEMBRANE) ORBITING D5(M5)-BRANES

International Journal of Modern Physics A ◽

10.1142/s0217751x11053729 ◽

2011 ◽

Vol 26 (18) ◽

pp. 3065-3076

Author(s):

RASHMI R. NAYAK ◽

PRATAP K. SWAIN

Keyword(s):

Angular Momentum ◽

Square Root ◽

Coupling Constant ◽

String Length ◽

Fundamental String ◽

Finite Distance ◽

String Membrane ◽

Probe Brane

We study fundamental string (F-string) dynamics near D5-brane in some limits. We find that when the angular momentum of the probe brane is proportional to string length (ls) and square root of string coupling constant [Formula: see text], the F-string lies in its metastable orbit at a finite distance from D5-branes. We further study the metastable orbits of a M2-brane in M5-brane background.

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Brane-jet instabilities

Journal of High Energy Physics ◽

10.1007/jhep10(2020)091 ◽

2020 ◽

Vol 2020 (10) ◽

Author(s):

Iosif Bena ◽

Krzysztof Pilch ◽

Nicholas P. Warner

Keyword(s):

Decay Channel ◽

Jet Instability ◽

Maximal Supergravity ◽

M Theory ◽

Weak Gravity ◽

Probe Brane

Abstract With one exception, all known non-supersymmetric AdS4 and AdS5 vacua of gauged maximal supergravities that descend from string and M theory have been shown to have modes with mass below the BF bound. The remaining non-supersymmetric AdS solution is perturbatively stable within gauged maximal supergravity, and hence appears to contradict recent conjectures about the AdS stability based on the weak gravity conjecture. We show that this solution is actually unstable by exhibiting a new decay channel, which is only visible when the solution is uplifted to eleven dimensions. In particular, M2 brane probes at generic locations inside the internal manifold are attracted to the Poincaré horizon, only to be expelled as “brane jets” along certain directions of the internal manifold. Such instabilities can arise in any non-supersymmetric AdS vacuum in any dimension. When a brane-jet instability is present, the force that expels the branes is the same as the force felt by a probe brane whose mass is less than its charge.

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String integrability of defect CFT and dynamical reflection matrices

Journal of High Energy Physics ◽

10.1007/jhep05(2021)203 ◽

2021 ◽

Vol 2021 (5) ◽

Author(s):

Georgios Linardopoulos ◽

Konstantin Zarembo

Keyword(s):

String Theory ◽

Boundary Conditions ◽

Transfer Matrix ◽

Correlation Functions ◽

Weak Coupling ◽

Double Row ◽

Reflection Matrix ◽

Shed Light ◽

Probe Brane ◽

Do So

Abstract The D3-D5 probe-brane system is holographically dual to a defect CFT which is known to be integrable. The evidence comes mainly from the study of correlation functions at weak coupling. In the present work we shed light on the emergence of integrability on the string theory side. We do so by constructing the double row transfer matrix which is conserved when the appropriate boundary conditions are imposed. The corresponding reflection matrix turns out to be dynamical and depends both on the spectral parameter and the string embedding coordinates.

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A Review of Magnetic Phenomena in Probe-Brane Holographic Matter

Strongly Interacting Matter in Magnetic Fields - Lecture Notes in Physics ◽

10.1007/978-3-642-37305-3_22 ◽

2013 ◽

pp. 591-624 ◽

Cited By ~ 6

Author(s):

Oren Bergman ◽

Johanna Erdmenger ◽

Gilad Lifschytz

Keyword(s):

Probe Brane ◽

Magnetic Phenomena

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The double cone geometry is stable to brane nucleation

Journal of High Energy Physics ◽

10.1007/jhep09(2021)156 ◽

2021 ◽

Vol 2021 (9) ◽

Author(s):

Raghu Mahajan ◽

Donald Marolf ◽

Jorge E. Santos

Keyword(s):

Form Factor ◽

Quantum Chaos ◽

Higher Dimensions ◽

Double Cone ◽

Spectral Form ◽

Factorization Problem ◽

Gauge Gravity ◽

M Theory ◽

Gravity Duality ◽

Probe Brane

Abstract In gauge/gravity duality, the bulk double cone geometry has been argued to account for a key feature of the spectral form factor known as the ramp. This feature is deeply associated with quantum chaos in the dual field theory. The connection with the ramp has been demonstrated in detail for two-dimensional theories of bulk gravity, but it appears natural in higher dimensions as well. In a general bulk theory the double cone might thus be expected to dominate the semiclassical bulk path integral for the boundary spectral form factor in the ramp regime. While other known spacetime wormholes have been shown to be unstable to brane nucleation when they dominate over known disconnected (factorizing) solutions, we argue below that the double cone is stable to semiclassical brane nucleation at the probe-brane level in a variety of string- and M-theory settings. Possible implications for the AdS/CFT factorization problem are briefly discussed.

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