PODCAST
ASC Workshops
by The Arnold Sommerfeld Center for Theoretical Physics (ASC)
The Arnold Sommerfeld Center for Theoretical Physics (ASC) in Munich regularly organizes workshops and conferences on special topics in theoretical physics, sometimes in collaboration with other institutes in Munich, like the Max Planck Institute for Physics (MPP). A selection can be found in this channel.
Episodes
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ASC Workshop: Fundaments Of Gravity
Comments on Horava gravity
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ASC Workshop: Fundaments Of Gravity
Gravity and Cosmology in the Horava-Lifshitz context
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ASC Workshop: Fundaments Of Gravity
Arithmetic Quantum Gravity
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ASC Workshop: Fundaments Of Gravity
Symmetron Fields: Screening Long-Range Forces Through Local Symmetry Restoration
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ASC Workshop: Fundaments Of Gravity
String Theory as a Theory of Species
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ASC Workshop: Fundaments Of Gravity
Non-linear supersymmetry and brane dynamics
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ASC Workshop: Fundaments Of Gravity
Higgs mass, renormalization group and naturalness in (quantum) cosmology
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ASC Workshop: Fundaments Of Gravity
Quantum critical points via gravity
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ASC Workshop: Fundaments Of Gravity
Symmetries and Inflation
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ASC Workshop on Interfaces and Wall-Crossings
Perturbations of Defects in Unitary Minimal Models
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ASC Workshop on Interfaces and Wall-Crossings
Loops and Defects in 4D Gauge Theories and 2D CFT’s
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ASC Workshop on Interfaces and Wall-Crossings
Defects in AdS4/CFT3
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ASC Workshop on Interfaces and Wall-Crossings
N=2 Gauge Theory
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ASC Workshop on Interfaces and Wall-Crossings
Gravity Duals of Interfaces, Defects and Junctions in N=4 SYM
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ASC Workshop on Interfaces and Wall-Crossings
What Defects can tell about Conformal Field Theory
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ASC Workshop on Interfaces and Wall-Crossings
Holographic Duals of Two Dimensional Interface Theories
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ASC Workshop on Interfaces and Wall-Crossings
Brane Obstructions from the World-Sheet
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ASC Workshop on Interfaces and Wall-Crossings
D-brane Moduli Spaces and Wall-Crossing via ADHM Sheaves
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ASC Workshop on Interfaces and Wall-Crossings
Conformally Invariant Random Curves in 2D
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ASC Workshop on Interfaces and Wall-Crossings
Non-Perturbative Effects Across Walls from Topological Strings
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ASC Workshop: Fundaments Of Gravity
Large-N Species and String Theory
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ASC Workshop: Fundaments Of Gravity
Reuniting DBI and Galileon
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ASC Workshop on Interfaces and Wall-Crossings
Surface Operators in N=2 Gauge Theories and Duality
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ASC Workshop: Fundaments Of Gravity
Non-Relativistic Quantum Gravity
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ASC Workshop: Fundaments Of Gravity
Reviving Higgs Inflation
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ASC Workshop on Interfaces and Wall-Crossings
Defects, Duality and Topology
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ASC Workshop: Fundaments Of Gravity
CS-WZW Correspondence in OSFT
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Quantum BTZ black hole and Outlook
The study of quantum effects on black holes including their gravitational backreaction is an important but notoriously hard problem. I will begin by reviewing how the framework of braneworld holography allows to solve it for strongly-coupled quantum conformal fields. Then I will describe a...
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Saturons
We introduce the concept of saturons, systems that saturate a certain bound on entropy, which is imposed by S-matrix and unitarity. Such objects share certain niversal properties (e.g., the area-law of entropy, near-thermal emission, inner entanglement, ...) that goes well beyond gravity. We give...
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The Unreasonable Effectiveness of Higher-Derivative Supergravity in AdS_4 Holography
I will describe the four-derivative corrections to four-dimensional N=2 minimal gauged supergravity and show that they are controlled by two constants. Interestingly, the solutions of the equations of motion in the two-derivative theory are not modified by the higher-derivative corrections. I…
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Discussion Session: Complexity
Computational complexity is a notion from information theory, initially defined for finite-dimensional systems, measuring the number of gates that have to be applied to a given reference state to reach a target state. Susskind’s proposals for defining computational complexity also for...
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The principle of holography of information and its low-energy tests
The principle of holography of information states that, in any theory of quantum gravity, a copy of all the information available on a Cauchy slice is also available near the boundary of the slice. This principle can be made precise and proved, under weak assumptions, for theories of gravity in…
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Page Curve from Holographic Moving Mirror and End of the World brane
In this talk we calculate the entanglement entropy in the presence of a moving mirror in a CFT. We employ the AdS/BCFT construction to describe a gravity dual of moving mirrors. We will show that the time evolution of entanglement entropy for a class of moving mirror, which models an evaporating...
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Complexity for CFTs in General Dimensions
In this talk I will discuss circuit complexity in the setting of higher dimensional conformal field theories. I will consider unitary gates built from a representation of the conformal group, two different circuit cost functions defined using either the Fubini-Study metric or the one-norm, and...
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On the geometry of quantum complexity
Computational complexity is a quantum information concept that recently has found applications in holography. I will consider quantum computational complexity for n qubits using Nielsen's geometrical approach. In the definition of complexity there is a big amount of arbitrariness due to the…
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A Wheeler DeWitt approach for Liouville quantum gravity
I will present the connection between the Wheeler-DeWitt approach for two-dimensional quantum gravity and holography, focusing in the case of Liouville theory coupled to c = 1 matter. The analysis is in a spirit similar to the recent studies of Jackiw-Teitelboim gravity. Matrix quantum mechanics...
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Pole skipping away from maximal chaos
The pole skipping phenomenon is a subtle effect in the thermal energy density retarded two point function at a special point in the complex frequency and momentum planes. For maximally chaotic theories, this special point is related to data characterising the butterfly effect, and is explained by…
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Towards a microscopic model of AdS fragmentation
A salient feature of black holes near extremality is the appearance of an AdS2 throat in their near-horizon geometry. Depending on the underlying theory, these AdS2 throats may be unstable to fragmentation, wherein a single throat is instead replaced by a tree-like structure of branched AdS2...
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Phases of Holographic Interfaces
Domain walls between Anti-de Sitter vacua are important for the study of the string-theory landscape, and enter in recent toy models of black hole evaporation. In this talk I will describe the phase diagram of a simple 2+1 dimensional model of thin domain walls anchored at the AdS boundary, and I...
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Comments on Euclidean wormholes and holography
Euclidean wormholes comprise exotic types of gravitational solutions, that still challenge our physical intuition and understanding. In the first part of the talk, I will analyse asymptotically AdS wormhole solutions in the context of holography. From a bottom up perspective a study of…
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Islands and Hawking radiation correlations of evaporating black holes
We consider the effect of shockwaves on the entanglement structure of black holes. We examine the correlations in generic subsets of the Hawking radiation emitted by evaporating black holes following the shockwave insertion and find a zoo of competing island saddle points for the associated...
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Quantum Complexity, Integrability, and Chaos
Quantum Complexity, Integrability, and Chaos The states of quantum systems grow in complexity over time as entanglement spreads between degrees of freedom. Following ideas in computer science, we formulate the complexity of evolution as the length of the shortest geodesic on the unitary group...
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The OPE Randomness Hypothesis and Euclidean Wormholes
Recent developments in holography indicate that the semi-classical Euclidean path-integral of Einstein gravity is much more powerful than previously anticipated. It is capable of reproducing a unitary Page curve for black hole evaporation, and can even capture some features of the discrete nature...
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Simple Euclidean wormholes might not contribute in the path integral
I present evidence, both from a GR and a holographic viewpoint, that Coleman's Euclidean axion wormholes do not contribute to the path integral.
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Towards a Swampland Global Symmetry Conjecture
Given that exact global symmetries are forbidden by quantum gravity, it is natural to expect that bounds on the quality of approximate global symmetries exist. So far, holographic arguments have only been provided for the former claim. I will discuss a classification of approximate global...
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Six-dimensional CFTs and M5-branes
I will review some recent progress on six-dimensional conformal field theories, highlighting applications to the dynamics of M5-branes. On an orbifold singularity, M5s can fractionate, and they can recombine by sometimes leaving behind a 'frozen' version of the singularity. The CFTs describing...
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Dual boundary conditions for 3d N=2 gauge theories, Part 2
The talks will focus on half-BPS boundary conditions for 3d N=2 gauge theories that preserve 2d N=(0,2) supersymmetry. I will review (and extend) the classification of such boundary conditions and the BPS local operators living on them, which form chiral algebras. I define a half-index that…
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ABOUT THIS SHOW
The Arnold Sommerfeld Center for Theoretical Physics (ASC) in Munich regularly organizes workshops and conferences on special topics in theoretical physics, sometimes in collaboration with other institutes in Munich, like the Max Planck Institute for Physics (MPP). A selection can be found in this channel.
HOSTED BY
The Arnold Sommerfeld Center for Theoretical Physics (ASC)
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Frequently Asked Questions
How many episodes does ASC Workshops have?
ASC Workshops currently has 134 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
What is ASC Workshops about?
The Arnold Sommerfeld Center for Theoretical Physics (ASC) in Munich regularly organizes workshops and conferences on special topics in theoretical physics, sometimes in collaboration with other institutes in Munich, like the Max Planck Institute for Physics (MPP). A selection can be found in this...
How often does ASC Workshops release new episodes?
ASC Workshops publishes regularly with 134 episodes available. Check the episode list for the typical release schedule.
Where can I listen to ASC Workshops?
You can listen to ASC Workshops on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.
Who hosts ASC Workshops?
ASC Workshops is created and hosted by The Arnold Sommerfeld Center for Theoretical Physics (ASC).
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