Outputs (29)

String worldsheet for accelerating quark (2015)
Journal Article
Hubeny, V. E., & Semenoff, G. W. (2015). String worldsheet for accelerating quark. Journal of High Energy Physics, 2015(10), Article 71. https://doi.org/10.1007/jhep10%282015%29071

We consider the AdS bulk dual to an external massive quark in SYM following an arbitrary trajectory on Minkowski background. While a purely outgoing boundary condition on the gluonic field allows one to express the corresponding string worldsheet in... Read More about String worldsheet for accelerating quark.

Entanglement density and gravitational thermodynamics (2015)
Journal Article
Bhattacharya, J., Hubeny, V., Rangamani, M., & Takayanagi, T. (2015). Entanglement density and gravitational thermodynamics. Physical Review D, 91(10), Article 106009. https://doi.org/10.1103/physrevd.91.106009

In an attempt to find a quasilocal measure of quantum entanglement, we introduce the concept of entanglement density in relativistic quantum theories. This density is defined in terms of infinitesimal variations of the region whose entanglement we mo... Read More about Entanglement density and gravitational thermodynamics.

Causality & Holographic Entanglement Entropy (2014)
Journal Article
Headrick, M., Hubeny, V. E., Lawrence, A., & Rangamani, M. (2014). Causality & Holographic Entanglement Entropy. Journal of High Energy Physics, 2014(12), Article 162. https://doi.org/10.1007/jhep12%282014%29162

We identify conditions for the entanglement entropy as a function of spatial region to be compatible with causality in an arbitrary relativistic quantum field theory. We then prove that the covariant holographic entanglement entropy prescription (whi... Read More about Causality & Holographic Entanglement Entropy.

Covariant Residual Entropy (2014)
Journal Article
Hubeny, V. E. (2014). Covariant Residual Entropy. Journal of High Energy Physics, 2014(9), Article 156. https://doi.org/10.1007/jhep09%282014%29156

A recently explored interesting quantity in AdS/CFT, dubbed ‘residual entropy’, characterizes the amount of collective ignorance associated with either boundary observers restricted to finite time duration, or bulk observers who lack access to a cert... Read More about Covariant Residual Entropy.

Holographic probes of collapsing black holes (2014)
Journal Article
Hubeny, V. E., & Maxfield, H. (2014). Holographic probes of collapsing black holes. Journal of High Energy Physics, 2014(3), Article 97. https://doi.org/10.1007/jhep03%282014%29097

We continue the programme of exploring the means of holographically decoding the geometry of spacetime inside a black hole using the gauge/gravity correspondence. To this end, we study the behaviour of certain extremal surfaces (focusing on those rel... Read More about Holographic probes of collapsing black holes.

Effective hydrodynamics of black D3-branes (2013)
Journal Article
Emparan, R., Hubeny, V. E., & Rangamani, M. (2013). Effective hydrodynamics of black D3-branes. Journal of High Energy Physics, 2013(6), Article 2013:35. https://doi.org/10.1007/jhep06%282013%29035

The long-wavelength effective field theory of world-volume fluctuations of black D3-branes is shown to be a hydrodynamical system to leading order in a gradient expansion. We study the system on a fiducial ‘cutoff’ surface: the fluctuating geometry i... Read More about Effective hydrodynamics of black D3-branes.

Thermalization of causal holographic information (2013)
Journal Article
Hubeny, V. E., Rangamani, M., & Tonni, E. (2013). Thermalization of causal holographic information. Journal of High Energy Physics, 2013(5), Article 136. https://doi.org/10.1007/jhep05%282013%29136

We study causal wedges associated with a given sub-region in the boundary of asymptotically AdS spacetimes. Part of our motivation is to better understand the recently proposed holographic observable, causal holographic information, χ, which is given... Read More about Thermalization of causal holographic information.

Extremal surfaces as bulk probes in AdS/CFT (2012)
Journal Article
Hubeny, V. E. (2012). Extremal surfaces as bulk probes in AdS/CFT. Journal of High Energy Physics, 2012(7), Article 93. https://doi.org/10.1007/jhep07%282012%29093

Motivated by the need for further insight into the emergence of AdS bulk spacetime from CFT degrees of freedom, we explore the behaviour of probes represented by specific geometric quantities in the bulk. We focus on geodesics and n-dimensional extre... Read More about Extremal surfaces as bulk probes in AdS/CFT.

Causal Holographic Information (2012)
Journal Article
Hubeny, V. E., & Rangamani, M. (2012). Causal Holographic Information. Journal of High Energy Physics, 2012(6), Article 114. https://doi.org/10.1007/jhep06%282012%29114

We propose a measure of holographic information based on a causal wedge construction. The motivation behind this comes from an attempt to understand how boundary field theories can holographically reconstruct spacetime. We argue that given the knowle... Read More about Causal Holographic Information.

The Fluid/Gravity Correspondence: a new perspective on the Membrane Paradigm (2011)
Journal Article
Hubeny, V. (2011). The Fluid/Gravity Correspondence: a new perspective on the Membrane Paradigm. Classical and Quantum Gravity, 28(11), Article 114007. https://doi.org/10.1088/0264-9381/28/11/114007

This paper gives an overview of the recently-formulated fluid/gravity correspondence, which was developed in the context of gauge/gravity duality. Mathematically, it posits that Einstein's equations (with negative cosmological constant) in d + 1 dime... Read More about The Fluid/Gravity Correspondence: a new perspective on the Membrane Paradigm.