# Alvaro veliz-osorioQueen Mary, University of London | QMUL

Alvaro veliz-osorio

## About

19

Publications

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234

Citations

Introduction

## Publications

Publications (19)

We study the physical properties of a length-torsion functional which encodes the holographic entanglement entropy for (1+1)-dimensional theories with chiral anomalies. Previously, we have shown that its extremal curves correspond to the mysterious Mathisson’s helical motions for the centroids of spinning bodies. We explore the properties of these...

We study the physical properties of a length-torsion functional which encodes the holographic entanglement entropy for 1+1 dimensional theories with chiral anomalies. Previously, we have shown that its extremal curves correspond to the mysterious Mathisson's helical motions for the centroids of spinning bodies. We explore the properties of these he...

We study extremal curves associated with a functional which is linear in the curve's torsion. The functional in question is known to capture the properties of entanglement entropy for two-dimensional conformal field theories with chiral anomalies and has potential applications in elucidating the equilibrium shape of elastic linear structures. We de...

We explore the question of which shape a manifold is compelled to take when immersed into another one, provided it must be the extremum of some functional. We consider a family of functionals which depend quadratically on the extrinsic curvatures and on projections of the ambient curvatures. These functionals capture a number of physical setups ran...

In this paper we investigate measures of chaos and entanglement in rational conformal field theories in 1+1 dimensions. First, we derive a formula for the late time value of the out-of-timeordered correlators for this class of theories. Our universal result can be expressed as a particular combination of the modular S-matrix elements known as anyon...

In this work we explore the structure of the branching graph of the unitary group using Schur transitions. We find that these transitions suggest a new combinatorial expression for counting paths in the branching graph. This formula, which is valid for any rank of the unitary group, reproduces known asymptotic results. We proceed to establish the g...

In this letter we investigate measures of chaos and entanglement scrambling in rational conformal field theories in 1+1 dimensions. First, we derive a formula for the late time value of the out-of-time-order correlators for these class of theories. Our universal result can be expressed as a particular combination of the modular S-matrix elements kn...

We carry out a systematic study of entanglement entropy in nonrelativistic
conformal field theories via holographic techniques. After a discussion of
recent results concerning Galilean conformal field theories, we deduce a novel
expression for the entanglement entropy of (1+1)-dimensional Lifshitz field
theories --- this is done both at zero and fi...

We introduce a prescription to compute the entanglement entropy of Galilean
conformal field theories by combining gravitational anomalies and an
\.{I}n\"{o}n\"{u}-Wigner contraction. Using this proposal, we calculate the
entanglement entropy for a class of Galilean conformal field theories, which
are believed to be dual to three-dimensional flat-sp...

We show that in 1+1 dimensional conformal field theories, exciting a state
with a local operator increases the Renyi entanglement entropies by a constant
which is the same for every member of the conformal family. Hence, it is an
intrinsic parameter that characterises local operators from the perspective of
quantum entanglement. In rational conform...

We explore an identity between two graphs and unravel its physical meaning in
the context of the gauge-gravity correspondence. From the mathematical point of
view, the identity equates probabilities associated with $\mathbb{GT}$, the
branching graph of the unitary groups, with probabilities associated with
$\mathbb{Y}$, the branching graph of the s...

In order to compute the entanglement entropy for a given region in a theory
with an Einstein gravity dual, the Ryu-Takayanagi prescription tells us that we
must compute the the area of an extremal surface anchored to the entangling
region. However, if the dual gravity theory receives higher-curvature
corrections we are compelled to extremize a quan...

We compute the renormalized entanglement entropy (REE) for BPS black
solutions in ${\cal N}=2$, 4d gauged supergravity. We find that this quantity
decreases monotonically with the size of the entangling region until it reaches
a critical point, then increases and approaches the entropy density of the
brane. This behavior can be understood as a cons...

Using the attractor mechanism for extremal solutions in \( \mathcal{N}=2 \) gauged supergravity, we construct a c-function that interpolates between the central charges of theories at ultraviolet and infrared conformal fixed points corresponding to anti-de Sitter geometries. The c-function we obtain is couched purely in terms of bulk quantities and...

Using the attractor mechanism for extremal solutions in ${\cal N}=2$ gauged
supergravity, we construct a $c$-function that interpolates between the central
charges of theories at ultraviolet and infrared conformal fixed points
corresponding to anti-de Sitter geometries. The $c$-function we obtain is
couched purely in terms of bulk quantities and co...

In this note, we explore the solution space of non-extremal black objects in
$4D$ and $5D$ ${\cal N}=2$ gauged supergravity in the presence of fluxes. We
present first order rewritings of the $4D$ action for a classes of non-extremal
dyonic and electric solutions with electric flux backgrounds. Additionally, we
obtain the non-extremal version of th...

We discuss quantum corrections to extremal black brane solutions in N=2 U(1)
gauged supergravity in four dimensions. We consider modifications due to a
certain class of higher-derivative terms as well as perturbative corrections to
the prepotential. We use the entropy function formalism to assess the impact of
these corrections on singular brane so...

We discuss the deformed sigma-model that arises when considering
four-dimensional N=2 abelian vector multiplets in the presence of an arbitrary
chiral background field. In addition, we allow for a class of deformations of
special geometry by non-holomorphic terms. We analyze the geometry of the
sigma-model in terms of intrinsic torsion classes. We...

We investigate the generating functions of multi-colored discrete disks with
non-homogenous boundary conditions in the context of the Hermitian multi-matrix
model where the matrices are coupled in an open chain. We show that the study
of the spectral curve of the matrix model allows one to solve a set of loop
equations to get a recursive formula co...