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Publications (34)

hep-th2009

Janus solutions in M-theory

Eric D'Hoker, John Estes, Michael Gutperle +1

We present a one-parameter deformation of the AdS_{4} x S^{7} vacuum, which is a regular solution in M-theory, invariant under SO(2,2) x SO(4) x SO(4), and which preserves 16 super…

hep-th2024

From Large to Small $N = (4, 4)$ Superconformal Surface Defects in Holographic 6d SCFTs

Pietro Capuozzo, John Estes, Brandon Robinson +1

Two-dimensional (2d) $N = (4, 4)$ Lie superalgebras can be either "small" or "large", meaning their R-symmetry is either $so (4)$ or $\mathfrak{so}(4) \oplus \math…

hep-th2013

Holographic Wilson Loops, Dielectric Interfaces, and Topological Insulators

John Estes, Andy O'Bannon, Efstratios Tsatis +1

We use holography to study (3+1)-dimensional N=4 supersymmetric SU(Nc) Yang-Mills theory (SYM) in the large-Nc and large coupling limits, with a (2+1)-dimensional interface where t…

hep-th2010

Cosmological Phases of the String Thermal Effective Potential

Francois Bourliot, John Estes, Costas Kounnas +1

In a superstring framework, the free energy density, F, can be determined unambiguously at the full string level once supersymmetry is spontaneously broken via geometrical fluxes.…

hep-th2013

Exact Half-BPS Flux Solutions in M-theory with $D (2, 1; c^{'}; 0)^{2}$ Symmetry: Local Solutions

John Estes, Roman Feldman, Darya Krym

We construct local solutions to 11-dimensional supergravity (or M-theory), which are invariant under the superalgebra $D (2, 1; c^{'}; 0) \oplus D (2, 1; c^{'}; 0)$ for all values of the pa…

hep-th2011

Massless D-strings and moduli stabilization in type I cosmology

John Estes, Lihui Liu, Herve Partouche

We consider the cosmological evolution induced by the free energy F of a gas of maximally supersymmetric heterotic strings at finite temperature and weak coupling in dimension D>=4…

hep-th2008

Half-BPS supergravity solutions and superalgebras

Eric D'Hoker, John Estes, Michael Gutperle +2

We establish a correspondence between certain Lie superalgebras with 16 fermionic generators, and half-BPS solutions to supergravities with 32 supersymmetries. Three cases are disc…

astro-ph.HE2022

Stability and Observability of Magnetic Primordial Black Hole-Neutron Star Collisions

John Estes, Michael Kavic, Steven L. Liebling +2

The collision of a primordial black hole with a neutron star results in the black hole eventually consuming the entire neutron star. However, if the black hole is magnetically char…

hep-th2014

M-theory Solutions Invariant under $D (2, 1; I^^{3}) \oplus D (2, 1; I^^{3})$

Constantin Bachas, Eric D'Hoker, John Estes +1

We simplify and extend the construction of half-BPS solutions to 11-dimensional supergravity, with isometry superalgebra D(2,1;Î³) \oplus D(2,1;Î³). Their space-time has the form A…

hep-th2009

Exact Half-BPS Flux Solutions in M-theory III: Existence and rigidity of global solutions asymptotic to AdS4 x S7

Eric D'Hoker, John Estes, Michael Gutperle +1

The BPS equations in M-theory for solutions with 16 residual supersymmetries, $S O (2, 2) \times S O (4) \times S O (4)$ symmetry, and $A d S_{4} \times S^{7}$ asymptotics, were reduced in [arXiv…

hep-th2007

Ten-dimensional supersymmetric Janus solutions

Eric D'Hoker, John Estes, Michael Gutperle

The reduced field equations and BPS conditions are derived in Type IIB supergravity for configurations of the Janus type, characterized by an $A d S_{4}$ -slicing of $A d S_{5}$ , and variou…

hep-th2014

On Holographic Defect Entropy

John Estes, Kristan Jensen, Andy O'Bannon +2

We study a number of (3+1)- and (2+1)-dimensional defect and boundary conformal field theories holographically dual to supergravity theories. In all cases the defects or boundaries…

hep-th2011

Superstring cosmology for N_4 = 1 -> 0 superstring vacua

John Estes, Costas Kounnas, Herve Partouche

We study the cosmology of perturbative heterotic superstring theory during the radiation-like era for semi-realistic backgrounds with initial $N = 1$ supersymmetry. This analysis is…

hep-th2014

Near Horizon Geometry of Strings Ending on Intersecting D8/D4-branes

John Estes, Darya Krym, Bert Van Pol

We consider solutions of massive IIA supergravity corresponding to the half-BPS intersection of D8/D4-branes with fundamental strings. The $1 + 1$ -dimensional intersection preserves…

hep-th2007

Exact half-BPS Type IIB interface solutions II: Flux solutions and multi-Janus

Eric D'Hoker, John Estes, Michael Gutperle

Regularity and topology conditions are imposed on the exact Type IIB solutions on $A d S_{4} \times S^{2} \times S^{2} \times I^£$ with 16 supersymmetries, which were derived in a companion…

hep-th2024

Holographic Weyl Anomalies for 4d Defects in 6d SCFTs

Pietro Capuozzo, John Estes, Brandon Robinson +1

In this note, we study $1/4$ - and $1/2$ -BPS co-dimension two superconformal defects in the $6 d$ $N = (2, 0)$ $A_{N - 1}$ SCFT at large $N$ using their holographic descriptions…

hep-th2008

Exact Half-BPS Flux Solutions in M-theory I, Local Solutions

Eric D'Hoker, John Estes, Michael Gutperle +1

The complete eleven-dimensional supergravity solutions with 16 supersymmetries on manifolds of the form $A d S_{3} \times S^{3} \times S^{3} \times I^£$ , with isometry $SO(2,2) \times SO(4)…

hep-th2008

Integrable systems from supergravity BPS equations

Eric D'Hoker, John Estes

Integrable systems of the sine-Gordon/Liouville type, which arise from reducing the BPS equations for solutions invariant under 16 supersymmetries in Type IIB supergravity and M-th…

hep-th2011

The fate of Newton's law in brane-world scenarios

Raphael Benichou, John Estes

We consider brane-world scenarios embedded into string theory. We find that the D-brane backreaction induces a large increase in the open string's proper length. Consequently the s…

hep-th2019

Wilson Surface Central Charge from Holographic Entanglement Entropy

John Estes, Darya Krym, Andy O'Bannon +2

We use entanglement entropy to define a central charge associated to a two-dimensional defect or boundary in a conformal field theory (CFT). We present holographic calculations of…

hep-th2015

Finite temperature holographic duals of 2-dimensional BCFTs

John Estes

We consider holographic duals of $2$ -dimensional conformal field theories in the presence of a boundary, interface, defect and/or junction, referred to collectively as BCFTs. In ge…

hep-th2007

Gravity duals of half-BPS Wilson loops

Eric D'Hoker, John Estes, Michael Gutperle

We explicitly construct the fully back-reacted half-BPS solutions in Type IIB supergravity which are dual to Wilson loops with 16 supersymmetries in $N = 4$ super Yang-Mill…

hep-th2006

Interface Yang-Mills, Supersymmetry, and Janus

Eric D'Hoker, John Estes, Michael Gutperle

We consider theories consisting of a planar interface with $N = 4$ super-Yang-Mills on either side and varying gauge coupling across the interface. The interface does not carry any…

hep-th2007

Exact half-BPS Type IIB interface solutions I: Local solution and supersymmetric Janus

Eric D'Hoker, John Estes, Michael Gutperle

The complete Type IIB supergravity solutions with 16 supersymmetries are obtained on the manifold $A d S_{4} \times S^{2} \times S^{2} \times I^£$ with $S O (2, 3) \times S O (3) \times S O (3)$ s…

hep-th2012

IIB Duals of D=3 N=4 Circular Quivers

Benjamin Assel, Costas Bachas, John Estes +1

We construct the type-IIB $A d S_{4} \times K$ supergravity solutions which are dual to the three-dimensional $N = 4$ superconformal field theories that arise as infrared fixed poi…

hep-th2012

Large N Free Energy of 3d N=4 SCFTs and AdS/CFT

Benjamin Assel, John Estes, Masahito Yamazaki

We provide a non-trivial check of the AdS_4/CFT_3 correspondence recently proposed in arXiv:1106.4253 by verifying the GKPW relation in the large N limit. The CFT free energy is ob…

math.CO2026

Average Steps until Absorption on Random Walks on Sea Dragon Trees

Lillian Ates, Zachary Chapman, John Estes +1

For a graph $G$ and vertices $u, v$ , we define the ASUA of $v$ , $t (G, v, u)$ , to be the average steps until absorption along a random walk terminating at $u$ . We define a sea dragon t…

hep-th2008

Exact Half-BPS Flux Solutions in M-theory II: Global solutions asymptotic to AdS_7 x S^4

Eric D'Hoker, John Estes, Michael Gutperle +1

General local half-BPS solutions in M-theory, which have $S O (2, 2) \times S O (4) \times S O (4)$ symmetry and are asymptotic to $A d S_{7} \times S^{4}$ , were constructed in exact form by t…

hep-th2011

Spin-2 spectrum of defect theories

Constantin Bachas, John Estes

We study spin-2 excitations in the background of the recently-discovered type-IIB solutions of D'Hoker et al. These are holographically-dual to defect conformal field theories, and…

hep-th2016

Holographic two-point functions for Janus interfaces in the $D 1/ D 5$ CFT

Marco Chiodaroli, John Estes, Yegor Korovin

This paper investigates scalar perturbations in the top-down supersymmetric Janus solutions dual to conformal interfaces in the $D 1/ D 5$ CFT, finding analytic closed-form solutions.…

hep-th2012

Wilson Loops in 5d N=1 SCFTs and AdS/CFT

Benjamin Assel, John Estes, Masahito Yamazaki

We consider 1/2-BPS circular Wilson loops in a class of 5d superconformal field theories on S^5. The large N limit of the vacuum expectation values of Wilson loops are computed bot…

hep-th2011

Holographic Duals of D=3 N=4 Superconformal Field Theories

Benjamin Assel, Costas Bachas, John Estes +1

We find the warped AdS_4 x K type-IIB supergravity solutions holographically dual to a large family of three dimensional \cN=4 superconformal field theories labeled by a pair (Ï,\…

hep-th2011

Geometry of open strings ending on backreacting D3-branes

Raphael Benichou, John Estes

We investigate open string theory on backreacting D3-branes using a spacetime approach. We study in detail the half-BPS supergravity solutions describing open strings ending on D3-…

hep-th2017

Shining Light on Quantum Gravity with Pulsar-Black Hole Binaries

John Estes, Michael Kavic, Matthew Lippert +1

Pulsars are some of the most accurate clocks found in nature, while black holes offer a unique arena for the study of quantum gravity. As such, pulsar-black hole (PSR-BH) binaries…

Publications (34)

Janus solutions in M-theory

From Large to Small N=(4,4) Superconformal Surface Defects in Holographic 6d SCFTs

Holographic Wilson Loops, Dielectric Interfaces, and Topological Insulators

Cosmological Phases of the String Thermal Effective Potential

Exact Half-BPS Flux Solutions in M-theory with D(2,1;c′;0)2 Symmetry: Local Solutions

Massless D-strings and moduli stabilization in type I cosmology

Half-BPS supergravity solutions and superalgebras

Stability and Observability of Magnetic Primordial Black Hole-Neutron Star Collisions

M-theory Solutions Invariant under D(2,1;I^3)⊕D(2,1;I^3)

Exact Half-BPS Flux Solutions in M-theory III: Existence and rigidity of global solutions asymptotic to AdS4 x S7

Ten-dimensional supersymmetric Janus solutions

On Holographic Defect Entropy

Superstring cosmology for N_4 = 1 -> 0 superstring vacua

Near Horizon Geometry of Strings Ending on Intersecting D8/D4-branes

Exact half-BPS Type IIB interface solutions II: Flux solutions and multi-Janus

Holographic Weyl Anomalies for 4d Defects in 6d SCFTs

Exact Half-BPS Flux Solutions in M-theory I, Local Solutions

Integrable systems from supergravity BPS equations

The fate of Newton's law in brane-world scenarios

Wilson Surface Central Charge from Holographic Entanglement Entropy

Finite temperature holographic duals of 2-dimensional BCFTs

Gravity duals of half-BPS Wilson loops

Interface Yang-Mills, Supersymmetry, and Janus

Exact half-BPS Type IIB interface solutions I: Local solution and supersymmetric Janus

IIB Duals of D=3 N=4 Circular Quivers

Large N Free Energy of 3d N=4 SCFTs and AdS/CFT

Average Steps until Absorption on Random Walks on Sea Dragon Trees

Exact Half-BPS Flux Solutions in M-theory II: Global solutions asymptotic to AdS_7 x S^4

Spin-2 spectrum of defect theories

Holographic two-point functions for Janus interfaces in the D1/D5 CFT

Wilson Loops in 5d N=1 SCFTs and AdS/CFT

Holographic Duals of D=3 N=4 Superconformal Field Theories

Geometry of open strings ending on backreacting D3-branes

Shining Light on Quantum Gravity with Pulsar-Black Hole Binaries

From Large to Small $N = (4, 4)$ Superconformal Surface Defects in Holographic 6d SCFTs

Exact Half-BPS Flux Solutions in M-theory with $D (2, 1; c^{'}; 0)^{2}$ Symmetry: Local Solutions

M-theory Solutions Invariant under $D (2, 1; I^^{3}) \oplus D (2, 1; I^^{3})$

Holographic two-point functions for Janus interfaces in the $D 1/ D 5$ CFT