Podcasts by Sommerfeld Theory Colloquium (ASC)
The Arnold Sommerfeld Center for Theoretical Physics organizes regular colloquia about topics of current interest in the field of theoretical physics.
Further podcasts by Michael Haack
Podcast on the topic Wissenschaft
All episodes
Identifying the Time Scales in Electron-Positron Production from Ultra-Strong Electric Fields from 2023-11-15T15:43:27
Electron-positron pair production in ultra-strong electric fields, the Sauter-Schwinger effect, is a long-standing theoretical prediction. In this talk the Sauter-Schwinger effect will be introduce...
Listen
Is Dark Matter made of Primordial Black Holes? JWST might tell! from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
Entanglement in complex quantum systems: From quantum information to many-body systems and back from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
The protein doctors: how chaperons repair damaged proteins from 2023-11-08T16:44:20
The life of a protein, from birth till death, is complex and challenging. At times, because of stresses or bad luck, it might take the wrong conformation and start aggregating. This process is intr...
Listen
From Bell's theorem to Quantum Networks from 2023-11-08T16:44:20
The question, whether a local, realistic theory can be a valid description of nature led to Bell's formulation of a clear cut experimental test. In spite of the many measurements performed and the ...
Listen
The Underlying Scaling Laws and Universal Statistical Structure of Complex Datasets from 2023-11-08T16:44:20
We study universal traits which emerge both in real-world complex datasets, as well as in artificially generated ones. Our approach is to analogize data to a physical system and employ tools from s...
Listen
The Nobel Prizes in Physics in 1932/33: Heisenberg, Schrödinger and Dirac from 2023-11-08T16:44:20
The Nobel Prize in Physics in 1930 was awarded to Raman for the discovery of the effect named after him. The next time physics prizes were announced was in November 1933, which makes this the longe...
Listen
Modern aspects of quantum physics and topology from 2023-11-08T16:44:20
Topology is one of the most recent branches of mathematics and has entered fully into the most modern aspects of theoretical physics: quantum computation. In this colloquium an elementary approach ...
Listen
Positivity constraints on theory space from 2023-11-08T16:44:20
The bootstrap program leverages symmetry and positivity to carve out the space of consistent quantum theories. In this talk I will highlight some of its recent successes, ranging from the numerical...
Listen
Anomalous metals from 2023-11-08T16:44:20
The observation of metallic ground states in a variety of two-dimensional electronic systems poses a fundamental challenge for the theory of electron fluids. I will analyze evidence for the existen...
Listen
Multispherical shapes, constant-mean-curvature surfaces, and the endoplasmic reticulum from 2023-11-08T16:44:20
The cells of our body are divided up into separate subcompartments by fluid membranes with a thickness of only a few nanometers. Even though these membranes provide robust barriers for the exchange...
Listen
New developments in supermembrane theory from 2023-11-08T16:44:20
The (unique) maximally extended D=11 supermembrane theory stands out as a candidate for the non-perturbative unification of superstring theory. In this talk I will review some basic features, in pa...
Listen
Multi-scale fluctuations in non-equilibrium systems from 2023-11-08T16:44:20
Understanding how fluctuations propagate across spatial scales is central to our understanding of inanimate matter from turbulence to critical phenomena. In contrast to these systems, many non-equi...
Listen
Interplay between mechanics and chemistry in living systems from 2023-11-08T16:44:20
Living systems interact with their environment by exerting mechanical forces and exchanging chemical substances. By fueling nonequilibrium reactions and driven molecular transport, cells dynamicall...
Listen
Deciphering the Beginning from 2023-11-08T16:44:20
The cosmic microwave background contains a wealth of information about cosmology as well as high energy physics. It tells us about the composition and geometry of the universe, the properties of ne...
Listen
Emergence of geometry and meaning, through gauge and strings dynamics from 2023-11-08T16:44:20
I will discuss the statistical physics of random growth processes which, on the one hand, model the non-perturbative gauge dynamics, emergence of space geometry in string theory on the other, ye...
Listen
Particle physics: Plan B from 2023-11-08T16:44:20
Particle physics is at the crossroads. The last particle firmly predicted by the Standard Model (SM) has been discovered. In recent years many of its interactions with other known particles have be...
Listen
Fantastic periods and where to find them from 2023-11-08T16:44:20
After a short introduction to the swampland program and the challenges one faces in explicit tests of some conjectures, this talk will focus on the computation of periods and their application to t...
Listen
Re-examining Cosmic Acceleration from 2023-11-08T16:44:20
Type Ia supernovae are standard (isable) candles so observing them out to cosmological distances reveals the change of the Hubble parameter with redshift. Such observations have been interpreted to...
Listen
The mathematics behind Feynman integrals from 2023-11-08T16:44:20
Feynman integrals are indispensable for precision calculations, not only for high-energy particle physics experiments, but also for example for QED precision experiments at lower energies or precis...
Listen
Branes, Islands, and Massive Gravitons from 2023-11-08T16:44:20
Quantum Gravity in Anti-de Sitter space coupled to a non-gravitating bath has been the setting for novel approaches to the black-hole information paradox. Works from 2 decades ago in the context of...
Listen
Chemically Active Wetting from 2023-11-08T16:44:20
Wetting of liquid phases, such as water drops condensing at the surface of plant leaves, is ubiquitous in our daily life. Interestingly, the physics of wetting also plays a crucial role in our cell...
Listen
Conjectures on Quantum Gravity and their Realisation in String Theory from 2023-11-08T16:44:20
A central question in fundamental physics is when an effective field theory can be consistently coupled to gravity at high energies. Over the years, various necessary conditions for this to be poss...
Listen
The asymptotic structure of gravity at spatial infinity (D=4 and D>4) from 2023-11-08T16:44:20
The asymptotic structure of gravity in the asymptotically flat case will be described in four and higher spacetime dimensions by making central use of the Hamiltonian formalism. Special emphasis wi...
Listen
Playing with the building blocks of the Universe from 2023-11-08T16:44:20
The conventional models of high energy physics place the elementary particles on a fixed or slowly evolving, nearly flat, spacetime geometry. The space foam predicted for quantum theory of gravity ...
Listen
How a physical system can be turned into a self-learning machine from 2023-11-08T16:44:20
Machine learning using artificial neural networks is revolutionizing many areas of science and technology. This increases the urgency for exploring alternatives to artificial neural networks runnin...
Listen
Influence of the fermionic exchange symmetry in the 1-particle picture from 2023-11-08T16:44:20
In a recent breakthrough, a complete set of constraints on fermionic occupation numbers, extending Pauli’s original exclusion principle, has been found. We provide an introduction into this new res...
Listen
How Much Structure Is Needed for Huge Quantum Speedups? from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
Precision at the LHC: why and how from 2023-11-08T16:44:20
With Run II, the LHC experiment already reached an unprecedented level of precision compared to previous hadron colliders. The amountof data collected in Run III and the High-Luminosity run will in...
Listen
Topological phases of matter: From classification to detection in experiments from 2023-11-08T16:44:20
Condensed matter is found in a variety of phases, the vast majority of which are characterized in terms of symmetry breaking. For example, magnets spontaneously break time-reversal and spin rotatio...
Listen
Quantum Gravity and the Swampland from 2023-11-08T16:44:20
String theory seems to offer an enormous number of possibilities for low energy physics. The huge set of solutions is often known as the String Theory Landscape. In recent years, however, it has be...
Listen
Functional renormalization group approach to correlated fermion systems from 2023-11-08T16:44:20
The functional renormalization group (RG) is an ideal tool for dealing with the diversity of energy scales and competition of instabilities in interacting fermion systems. Starting point is an exac...
Listen
Strange effects in the neutrino oscillations from 2023-11-08T16:44:20
Although the neutrino oscillations are well established phenomenon, new and unusual oscillation effects in matter are still emerging. I will describe three such effects which have applications to t...
Listen
Particle Scattering and Number Theory from 2023-11-08T16:44:20
From the softest of interactions of a magnetic field with an electron, to the most violent collisions at the Large Hadron Collider, precision quantum field theory produces numbers and functions wit...
Listen
Pulling Yourself by your Bootstraps in Quantum Field Theory from 2023-11-08T16:44:20
Quantum field theory (QFT) is the universal language of theoretical physics, underlying the Standard Model of elementary particles, the physics of the early Universe and a host of condensed matter ...
Listen
Space-Time-Matter: Finite Projective Geometry as a Quantum World with Elementary Particles from 2023-11-08T16:44:20
A unified theory for space-time and matter might be based on finite projective geometries instead of differentiable manifolds and gaugegroups. Each point is equipped with a quadratic form over a fi...
Listen
R-matrix Quantization of the Ruijsenaars-Schneider Models from 2023-11-08T16:44:20
I describe an algebraic scheme for quantizing the Ruijsenaars-Schneider models in the R-matrix formalism. It is based on a special parametrizationof the cotangent bundle over GL(n,C). In new variab...
Listen
Black holes as harbingers of new gravitational physics from 2023-11-08T16:44:20
The apparent crisis of black holes inconsistency with foundational physical principles provides a sharp focus for the conflict between quantum mechanics and classical spacetime. Various resolutions...
Listen
Black Holes, Quantum Information, and Unification from 2023-11-08T16:44:20
The study of black holes has revealed a deep connection between quantum information and spacetime geometry. Its origin must liein the quantum theory of gravity, which offers a valuable hint in our ...
Listen
Limits of strong CP from 2023-11-08T16:44:20
Quantum mechanical potentials with multiple classically degenerate minima lead to spectra that are determined by the pertaining tunneling amplitudes. For the strong interactions, these classical mi...
Listen
High order correlation and what we can learn about the solution for many body problems from experiment from 2023-11-08T16:44:20
The knowledge of all correlation functions of a system is equivalent to solving the corresponding quantum many-body problem. If one can identify the relevant degrees of freedom, the knowledge of a ...
Listen
Gauge Theories and Non-Commutative Geometry from 2023-11-08T16:44:20
We shall review the attempts to extend the quantum mechanical property of non-commutativity from phase space toordinary space. These attempts took a more precise form in the case of gauge theories ...
Listen
Emergent cosmology from quantum gravity: the universe as a quantum condensate from 2023-11-08T16:44:20
The construction of a quantum theory of gravity remains an open problem despite decades of efforts.In time, the very perspective on this problem evolved. From quantising General Relativity, the goa...
Listen
Modeling microbial diversity from 2023-11-08T16:44:20
Metagenomics has revealed hundreds to thousands of microbial species coexisting in almost all microbiota. It is increasingly appreciatedthat microbial communities condition their own environments. ...
Listen
From Emergent Gravity to Dark Energy and Dark Matter from 2023-11-08T16:44:20
The observed deviations from the laws of gravity of Newton and Einstein in galaxies and clusters can logically speaking be either due tothe presence of unseen dark matter particles or due to a chan...
Listen
Understanding the LIGO gravitational wave event (GW150914) from 2023-11-08T16:44:20
In February 2016 the LIGO team announced the detection of gravitational waves (GW) created by the merger of two black holes. In additionto confirming a major prediction of general relativity, succe...
Listen
Chiral symmetry breaking, emergent Higgs mechanism, and critical matter from 2023-11-08T16:44:20
The upshot of extensive studies of �uctuations in condensed matter systems is that their qualitative importance is typically con#ned to isolated critical points ofcontinuous transitions between pha...
Listen
The Physics of Active Matter from 2023-11-08T16:44:20
Over the past ten years, there has been a growing interest among physicists for ‘active matter’, a codename that encompasses systems in which energy istaken from the environment to generate self-pr...
Listen
Scattering Amplitudes from Geometry from 2023-11-08T16:44:20
I will review for a general audience some recent developments in our understanding of the mathematical structure of scattering amplitudesin quantum field theory. Many of these developments involve ...
Listen
The Black Hole Information Paradox Revisited from 2023-11-08T16:44:20
I describe the physics of black holes and show how the traditional approach leads to the information paradox. I will then discuss someof the proposed resolutions and the difficulties they need to o...
Listen
Can a quantum computer solve optimization problems more Efficiently than a classical computer? from 2023-11-08T16:44:20
In this talk I will discuss connections between the physics of complex systems such as spin glasses and attempts to solve optimizationproblems by ”Adiabatic Quantum Computing” (AQC), a version of ”...
Listen
Effects of Dark Matter linear in Interaction Strength from 2023-11-08T16:44:20
Low-mass boson dark matter particles produced after the Big Bang form a classical field and/or topological defects. Effects producedby the interaction of ordinary matter with dark matter may be fir...
Listen
Quantum Critical Points in Metals: Non-Fermi Liquids and their Field Theoretical Description from 2023-11-08T16:44:20
Metals are found frequently in nature and their properties are usually very well described within Landaus Fermi liquid theory. Variousstrongly correlated materials exhibit strange metallic phases w...
Listen
Gone with the wind: The demise of protoplanetary discs and the birth of planets from 2023-11-08T16:44:20
Protoplanetary discs are natural consequence of star formation. These discs hold the left-over material from star formation, which constitutes the reservoir from which new planetary systems may for...
Listen
From materials science to basic physics from 2023-11-08T16:44:20
Condensed matter provides us deep insights into quantum physics. Giving just two examples, wave-corpuscle duality manifests itself inspectroscopy of strongly correlated systems as coexistence of it...
Listen
The Search for New Interactions at the LHC: The top quark Window from 2023-11-08T16:44:20
New Physics searches at the LHC are mostly being performed with the aim of detecting new states. A complementary strategy is tolook for new interactions, something that typically involves precise m...
Listen
Ergodicity, Entanglement and Many-Body Quantum Dynamics in Localization from 2023-11-08T16:44:20
Do quantum many-body systems necessarily come to thermal equilibrium after a long enough time evolution? The conventional wisdomhas long been that they do and that, in the process, any quantum info...
Listen
Quantum Mechanics and Geometry of Spacetime from 2023-11-08T16:44:20
Quantum mechanics is important for determining the geometry of spacetime. We will review the role of quantum fluctuations that determinethe large scale structure of the universe. In some model univ...
Listen
Supermassive Black Holes: From Jets to the Event Horizon from 2023-11-08T16:44:20
Highest resolution Event Horizon Telescope (EHT) observations will probably soon tell us more about the supermassive black hole atthe Galactic Centre (Sgr A*) and the cores of active galactic nucle...
Listen
Extreme Light and Quantum Fields from 2023-11-08T16:44:20
2015 is the International Year of Light, and of its purposes is “to raise awareness of optical technologies”. One such technology, high-powerlasers of the petawatt class and beyond, provides the mo...
Listen
Turbulence without Linear Instability from 2023-11-08T16:44:20
All flows show a transition from a laminar phase to a turbulent one for sufficiently high flow speeds. In many cases turbulence develops in a succession of instabilities that create flows of increa...
Listen
Two-Dimensional Melting Transition: New Algorithms, New Insights from 2023-11-08T16:44:20
The hard-disk model has exerted outstanding influence on computational physics and statistical mechanics. Decades ago, hard diskswere the first system to be studied by Markov-chain Monte Carlo meth...
Listen
Precision Measurements of the Cosmic Microwave Background from 2023-11-08T16:44:20
We review the current status of measurements of the spectrum, an isotropy and polarization of the CMB, and their impact on cos-mology. We show that there is still a large discovery potential in the...
Listen
The development of twistor geometry for the description of fundamental physics from 2023-11-08T16:44:20
I will review the basic defi�nitions and ideas of the twistor program for fundamental physics, as started by Roger Penrose around 1970. Iwill give particular attention to certain conformally invari...
Listen
Topological Superconductivity and Unconventional pairing in Oxide Interfaces from 2023-11-08T16:44:20
To pinpoint the microscopic mechanism for superconductivity has proven to be one of the most outstanding challenges in the physics ofcorrelated quantum matter. Thus far, the most direct evidence fo...
Listen
Phenomenological and Cosmological Implications of String Theory Models from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
Cosmology with Type Ia Supernovae: where do we stand today? from 2023-11-08T16:44:20
The role of Type Ia supernovae in observational cosmology has evolved from being ”avant-garde” in the early 1990’s until today’s mature status of precision cosmology. Several large transient survey...
Listen
Lattice gauge theory insights from 2023-11-08T16:44:20
Various aspects of lattice gauge theory will be briefly discussed including, general principles, sources of systematic errors, dynamical fermions, QCD phenomenology, the FLAG project and, if time a...
Listen
Higher Spin --- CFT duality from 2023-11-08T16:44:20
The conjectured relation between higher spin theories on anti de-Sitter (AdS) spaces and weakly coupled conformal �field theories is reviewed. I shall then outline the evidence in favour of a concr...
Listen
Searching for New Forces Using Torsion Pendula from 2023-11-08T16:44:20
Equivalence principle violation, deviations from the inverse-square law of gravity, and long-range interactions between particle spinso�er powerful tests of beyond-the-standard-model physics. Using...
Listen
A Closer Look at Black Holes from 2023-11-08T16:44:20
Several new techniques are currently being employed to probe the strong gravitational fi�eld in the vicinity of black holes. Long baselineinterferometry at sub-millimeter wavelengths sets constrain...
Listen
Higher-Spin Gravity and Higher Spin Black Holes in Three Dimensions from 2023-11-08T16:44:20
Three-dimensional Einstein gravity has no local dynamical degree of freedom. Yet, it is far from being trivial when the cosmological constant is negative. (i) It admits black hole solutions. (ii) I...
Listen
Harmony of Scattering Amplitudes and Form Factors from 2023-11-08T16:44:20
In this seminar I will describe some of the hidden structures recently discovered in the scattering amplitudes of elementary particles, suchas those measured at the Large Hadron Collider. These str...
Listen
Cascade of phase transitions near Quantum Critical Point from 2023-11-08T16:44:20
In the standard picture of a quantum phase transition, a single quantum critical point separates the phases at zero temperature. Here we show that the two-dimensional case is considerably more comp...
Listen
Einstein and Quantum Mechanics: It's Not What You Think from 2023-11-08T16:44:20
Einstein is well known for his rejection of quantum mechanics in the form it emerged from the work of Heisenberg, Born and Schrodinger in 1926. Much less appreciated are the many seminal contributi...
Listen
Statistical Physics and Information Theory : New Frontiers from 2023-11-08T16:44:20
Since the emergence of information theory in the middle of the 20th century, this new scientific field has been deeply entangled with statistical physics, as attested from the beginning by the use ...
Listen
Status of the Electroweak Standard Model from 2023-11-08T16:44:20
With the discovery of the Higgs boson and the determination of its mass, the Standard Model is complete and its parameters are now known and over-constrained. I will review the status and future di...
Listen
Near-Pristine Gas at High Redshifts: First Stars, Big-Bang Nucleosynthesis, and Limits on Dark Radiation from 2023-11-08T16:44:20
In this seminar, I shall describe recent work by our group on iden- tifying pockets of gas at high redshift that have undergone mini- mum processing through stars. The chemical composition of such ...
Listen
Ultrahigh Energy Cosmic Rays: probe of extreme particle physics from 2023-11-08T16:44:20
Remarkably, a strong candidate for Dark Matter exists within the Standard Model. Theoretical arguments suggest that QCD forces in the flavor-singlet sector may be strong enough that the H-dibaryon ...
Listen
The History behind the Brout-Englert-Mechanism and the Standard Model from 2023-11-08T16:44:20
I will describe the process of how to award Nobel Prizes and then give the history behind this year’s prize.
Listen
Quantum simulators for fundamental physics from 2023-11-08T16:44:20
The dynamics of the early universe and black holes are fundamental reflections of the interplay between general relativity and quantum fields. The essential physical processes occur in situations t...
Listen
Real Time Imaging of Thermal and Quantum Fluctuations from 2023-11-08T16:44:20
Tremendous progresses have been achieved in the last decade in real- ising and manipulating stable and controllable quantum systems, and these made possible to experimentally study fundamental ques...
Listen
Quantum Gravity with Anisotropic Scaling and the Multicritical Universe from 2023-11-08T16:44:20
The problem of understanding how gravity fits together with other fundamental interactions of matter has been at the forefront of the- oretical research for many decades, leading to the rich framew...
Listen
Negative absolute temperatures for mobile particles from 2023-11-08T16:44:20
Absolute temperature, that is the fundamental temperature scale in thermodynamics, is usually bound to be positive. Under special con- ditions, however, negative temperatures - where high-energy st...
Listen
Exact, Broken and Approximate Symmetries from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
Planck mission: the 2013 cosmology results from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
The role of duality in transport in imperfect Luttinger liquid from 2023-11-08T16:44:20
A single potential impurity can drastically change a low-temperature transport of strongly interacting particles in one dimension - a sys- tem which is known as the Luttinger liquid. An arbitrary w...
Listen
Contacting the moon from 2023-11-08T16:44:20
The restricted three body problem has an intriguing dynamics. Glo- bal surfaces of section are a tool to reduce the study of the dynamics on a three dimensional energy hypersurface to the study of ...
Listen
Out-of-equilibrium phenomena from a new perspective: an Ab-Initio approach from 2023-11-08T16:44:20
Ultra-fast optical spectroscopy is a powerful tool for the observation of dynamical processes in several kind of materials. The basic time- resolved optical experiment is the so-called “pump-probe”...
Listen
Self-organization and self-assembly in biologically inspired non-equilibrium systems from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
Lattice QCD in Regensburg from 2023-11-08T16:44:20
In Regensburg there exists a large Lattice-QCD group (SFB/TR-55) working in many fields, ranging from the development of energy efficient super-computers to specialized Lattice studies of SU(N) gau...
Listen
The next ten years of dark energy research from 2023-11-08T16:44:20
In the next few years new data from ground and space will push the limit of cosmological observations to new frontiers. Combining CMB, weak lensing, redshift clustering and supernovae data, we will...
Listen
Non-equilibrium Relaxation and Aging Kinetics from 2023-11-08T16:44:20
If systems characterized by slow (algebraic) relaxation are prepared in an out-of-equilibrium initial state, one can observe a "physical aging regime" in the ensuing approach to equilibriumthat is ...
Listen
Cosmological Symmetry Breaking as Origin of the Hot Early Universe from 2023-11-08T16:44:20
The decay of a false vacuum of unbroken B-L, the difference of baryon and lepton number, is an intriguing and testable mechanism to gen- erate the initial conditions of the hot early universe. If B...
Listen
Turbulence: scaling and beyond from 2023-11-08T16:44:20
This lecture is aimed at a rather broad audience including under- graduates. It will discuss scaling arguments, what they can achieve (Kolmogorov’s -5/3 law, etc.) and what they miss (fractals, Etc).
Listen
Lorentz Violation, Gravity, Dissipation and Holography from 2023-11-08T16:44:20
Lorentz non-invariance in quantum field theory is reconsidered as well as its interplay with gravity, string theory, diffeomorphism invariance and changing reference frames. We clarify these issues...
Listen
Neutrino Paradigm and Large Hadron Collider from 2023-11-08T16:44:20
The physics of elementary particles is governed by symmetries. A particular symmetry stands out: the one between left and right, called parity. Its breaking in beta decay created a bombshell more t...
Listen
Application of Reflection Positivity: Graphene and Other Examples from 2023-11-08T16:44:20
Reflection positivity is a useful tool in statistical mechanics and con- densed matter physics. A recent application is to the determination of the possible distortions of the hexagonal graphene la...
Listen
Novel Topologically Ordered Phases of Condensed Matter from 2023-11-08T16:44:20
Much of condensed matter physics is concerned with understanding how different kinds of order emerge from interactions between a large number of simple constituents. In ordered phases such as cryst...
Listen
The Many Faces of Conformal Interfaces from 2023-11-08T16:44:20
Conformal interfaces are the long-distance limits of domain walls. They play a role in condensed-matter physics, and could be also rel- evant for theories of gravity. I will review some recently-de...
Listen
Searching for Cosmic Strings in New Observational Windows from 2023-11-08T16:44:20
Many particle physics theories beyond the Standard Model (BSM) admit topologically stable cosmic string solutions. If Nature is described by such a theory, a network of strings will form in the ear...
Listen
Critical Acceleration from 2023-11-08T16:44:20
In collisions of ultra-intense laser-pulse with relativistic electrons as well as in ultra relativistic heavy ion collisions at RHIC and at LHC it is possible to probe critical acceleration a=mc^3/...
Listen
Quantum Theory and Realism - 'Esquisse d'un Programme' from 2023-11-08T16:44:20
In this lecture I propose to discuss some issues concerning the founda- tions of quantum mechanics and its interplay with space-time physics. I start by clarifying the distinction between ’realisti...
Listen
What can we compute with quantum devices? from 2023-11-08T16:44:20
Sommerfeld Theory Colloquium
Listen
Symmetry in quantum gravity from 2023-11-08T16:44:20
It has long been expected that the symmetry structure of quantum gravity is highly constrained. In particular it has been conjectured that global symmetries do not exist, and also that there must ...
Listen
Hunting for the stochastic gravitational-wave background: Implications for astrophysics, high energy physics, and theories of gravity from 2023-11-08T16:44:20
I will first define the stochastic gravitational-wave background (SGWB) and highlight the method we are using to detect it in the presence of correlated magnetic noise. I will then discuss astrophy...
Listen
Topological Phase Transitions in Population Dynamics from 2023-11-08T16:44:20
Topological phases were discovered in condensed matter physics and recently extended to classical physics such as topological mechanical metamaterials. Their study and realization in soft-matter an...
Listen
Sommerfeld Lecture Series from 2022-02-16T16:49:49
In connection with the existing and forthcoming missions dedicated to search for cosmic antimatter, the models of baryogenesis leading to an efficient creation of astronomically large antimatter ob...
Listen
Sommerfeld Theory Colloquium from 2022-02-16T16:49:49
Are there plausible extensions of the Standard Model that could lead to early discoveries at the LHC? To address this general question on a concrete example, I will consider a class of minimal mode...
Listen
Arnold Sommerfeld Theory Colloquium from 2022-02-16T16:49:49
Majorana fermions are spatially localized superpositions of electron and hole excitations in the middle of a superconducting energy gap. These unusual particles have been predicted to occur at the ...
Listen