Chrysostomos Marasinou
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Chrysostomos Marasinou has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Michael Gutperle
University of California Los Angeles
5 shared publications - Simon A. Gentle
Department of Physics and Astronomy University of California 90095 Los Angeles CA USA
4 shared publications - Andrea Trivella
University of California
1 shared publication - Christoph F. Uhlemann
Vrije Universiteit Brussel and The International Solvay Institutes
1 shared publication
Latest Publications
- Open Access
Entanglement entropy vs. free energy in IIB supergravity duals for 5d SCFTs
We study entanglement entropy and the free energy in recently constructed holographic duals for 5d SCFTs in type IIB supergravity. The solutions exhibit mild singularities, which could potentially complicate holographic applications. We use the relation of the entanglement entropy for a spherical entangling surface to the free energy of the field theory on the five sphere as a well-motivated benchmark to assess how problematic the singularities are. The holographic supergravity computations give well-defined results for both quantities and they satisfy the expected relations. This supports the interpretation of the solutions as holographic duals for 5d SCFTs and gives first quantitative indications for the nature of the dual SCFTs.
Open AccessEntanglement entropy vs. free energy in IIB supergravity duals for 5d SCFTs
We study entanglement entropy and the free energy in recently constructed holographic duals for 5d SCFTs in type IIB supergravity. The solutions exhibit mild singularities, which could potentially complicate holographic applications. We use the relation of the entanglement entropy for a spherical entangling surface to the free energy of the field theory on the five sphere as a well-motivated benchmark to assess how problematic the singularities are. The holographic supergravity computations give well-defined results for both quantities and they satisfy the expected relations. This supports the interpretation of the solutions as holographic duals for 5d SCFTs and gives first quantitative indications for the nature of the dual SCFTs.
- Open Access
- 12 April 2016
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2016 (4) , 1-36
Holographic entanglement entropy of surface defects
- 12 April 2016
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2016 (4) , 1-36
Open AccessHolographic entanglement entropy of surface defects
- Open Access
Holographic entanglement entropy of surface defects
We calculate the holographic entanglement entropy in type IIB supergravity solutions that are dual to half-BPS disorder-type surface defects in ${\cal N}=4$ Super Yang-Mills theory. The entanglement entropy is calculated for a ball-shaped region bisected by a surface defect. Using the bubbling supergravity solutions we also compute the expectation value of the defect operator. Combining our result with the previously-calculated one-point function of the stress tensor in the presence of the defect, we adapt the calculation of Lewkowycz and Maldacena to obtain a second expression for the entanglement entropy. Our two expressions agree up to an additional term, whose possible origin and significance is discussedOpen AccessHolographic entanglement entropy of surface defects
We calculate the holographic entanglement entropy in type IIB supergravity solutions that are dual to half-BPS disorder-type surface defects in ${\cal N}=4$ Super Yang-Mills theory. The entanglement entropy is calculated for a ball-shaped region bisected by a surface defect. Using the bubbling supergravity solutions we also compute the expectation value of the defect operator. Combining our result with the previously-calculated one-point function of the stress tensor in the presence of the defect, we adapt the calculation of Lewkowycz and Maldacena to obtain a second expression for the entanglement entropy. Our two expressions agree up to an additional term, whose possible origin and significance is discussed - Open Access
- 5 August 2015
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2015 (8) , 19
Entanglement entropy of Wilson surfaces from bubbling geometries in M-theory
- 5 August 2015
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2015 (8) , 19
Open AccessEntanglement entropy of Wilson surfaces from bubbling geometries in M-theory
- Open Access
Entanglement entropy of Wilson surfaces from bubbling geometries in M-theory
We consider solutions of eleven-dimensional supergravity constructed in [1,2] that are half-BPS, locally asymptotic to $AdS_7\times S^4$ and are the holographic dual of heavy Wilson surfaces in the six-dimensional $(2,0)$ theory. Using these bubbling solutions we calculate the holographic entanglement entropy for a spherical entangling surface in the presence of a planar Wilson surface. In addition, we calculate the holographic stress tensor and, by evaluating the on-shell supergravity action, the expectation value of the Wilson surface operator.Open AccessEntanglement entropy of Wilson surfaces from bubbling geometries in M-theory
We consider solutions of eleven-dimensional supergravity constructed in [1,2] that are half-BPS, locally asymptotic to $AdS_7\times S^4$ and are the holographic dual of heavy Wilson surfaces in the six-dimensional $(2,0)$ theory. Using these bubbling solutions we calculate the holographic entanglement entropy for a spherical entangling surface in the presence of a planar Wilson surface. In addition, we calculate the holographic stress tensor and, by evaluating the on-shell supergravity action, the expectation value of the Wilson surface operator.