Colloquium - 2016/2017

Colloquium, year 2016 - 2017

Every Thursday at 1:30 p.m. in room Conf. IV, 24 rue Lhomond, Paris.

Hydrodynamics and quantum anomalies

Đàm Thanh Sơn (University of Chicago) — June 29 Abstract: Hydrodynamics, the theory describing collective behaviors of fluids and gases, is usually considered as a classical theory. In recent years, it has been found that hydrodynamics can be (...) | ↦ Read more

What can we do with genes in medicine?

The case of immunology

Alain Fischer (Collège de France) — June 15 Abstract: Over the last 50 years, advances in molecular biology and genetics have made genome engineering possible. This resulted, amongst many applications, in the medical development of gene therapy. (...) | ↦ Read more

Modeling solids and its impact on science and technology

Marvin L. Cohen (University of California at Berkeley & 
Lawrence Berkeley National Laboratory) — Tuesday June 6, 1:30 p.m. in Conf. IV !! UNUSUAL DAY: TUESDAY JUNE 6 AT 1:30 P.M. IN CONF. IV !! Abstract: For modeling solids in condensed (...) | ↦ Read more

The physics of exceptional points

Stefan Rotter (TU Vienna) — June 1st Abstract: In my talk I will discuss the recent exciting developments associated with non-Hermitian degeneracies, also known as “exceptional points”. After having been studied mostly in the domain of (...) | ↦ Read more

The Nobel prize in Physics 2016: Topological phases of matter

Jean-Noël Fuchs (Laboratoire de Physique des solides, Orsay; Laboratoire de Physique théorique de la matière condensée, UPMC) — May 18 Abstract: Last year’s Nobel prize in physics was awarded to Kosterlitz, Thouless and Haldane for their pioneering (...) | ↦ Read more

The ocean: A turbulent control system for the Earth’s climate

Sabrina Speich (Laboratoire de Météorologie Dynamique, ENS) — May 11 Abstact: Today, we can consider the ocean as the key component of the climate system. Because of its ability to take up heat and absorb greenhouse gases such as carbon dioxide (...) | ↦ Read more

Nonlinear fluctuating hydrodynamics and time-correlations for one-dimensional systems

Herbert Spohn (Technical University, Munich) — May 4 Abstract: Our focus are non-integrable classical systems in one dimension, like Fermi-Pasta-Ulam chains, the discrete nonlinear Schroedinger equation, and 1D fluids interacting through a (...) | ↦ Read more

Collective effects in transport systems: From molecular motors to pedestrians

Cécile Appert-Rolland (Laboratoire de Physique Théorique, Université Paris-Sud) — April 20 Abstract: Transport systems often rely on self-propelled agents. At our scale, these agents can be pedestrians or vehicles. But we also find self-propelled (...) | ↦ Read more

Probing and controlling ultracold quantum matter with ultracold atoms

— from single atom microscopes to Rydberg dressed quantum gases —

Immanuel Bloch (Max Planck Institute for Quantum Optics, Munich) — March 30 Biography: Professor Immanuel Bloch is managing director of the Max Planck Institute for Quantum Optics in Munich. His research is focused on the investigation of (...) | ↦ Read more

Nanotechnology for single-molecule and single-cell biophysics

Cees Dekker (Kavli Institute of Nanoscience, Delft University of Technology) — March 23 !! UNSUAL TIME: 2:00 P.M. !! Abstract: Nanotechnology offers fantastic opportunities to contribute to biology. I will present two recent examples from my (...) | ↦ Read more

Undecidability in physics… and its consequences

David Pérez-García (Universidad Complutense, Madrid) — March 16 Abstract: The pioneering work of Goedel and Turing in the 30s showed that there exist problems in mathematics and computer science that cannot be solved. They are called (...) | ↦ Read more

Electron and lattice dynamics in solids mapped by ultrafast x-ray methods

Thomas Elsaesser (Max Born Institute, Berlin) — March 9 Abstract: Time-resolved structure research aims at revealing the basic mechanisms behind the spatial re-arrangement of atoms and the re-distribution of electrons. X-ray diffraction and (...) | ↦ Read more

Pluto revealed by the New Horizons spacecraft... and numerical modeling

François Forget (Laboratoire de Météorologie Dynamique, Institut Pierre Simon Laplace, Paris) — March 2 Abstract: On July, 14, 2015, the New Horizons spacecraft flew by the planetary system composed of Pluto, Charon and four small satellites. It (...) | ↦ Read more

Looking for the hidden matter in the Universe

Marco Cirelli (LPTHE, Université Pierre et Marie Curie) — February 2, 2017 Abstract: Dark Matter constitutes more than 80% of the total amount of matter in the Universe: we know it exists, we can guess some of its properties, but we have no (...) | ↦ Read more

On Effective Field Theory (and a little bit of Differential Geometry) in Cosmology

Leonardo Senatore (Stanford University) — January 26, 2017 Abstract: Observational Cosmology has made tremendous progress in the last couple of decades, allowing us to explore the beginning of the universe with unprecedented precision. Such (...) | ↦ Read more

Shortcuts to adiabaticity

David Guéry-Odelin (Université Paul Sabatier, Toulouse) — January 19, 2017 Abstract: In quantum physics, adiabatic processes keep constant the populations in the instantaneous eigenbasis of a time-dependent Hamiltonian. They are very useful to (...) | ↦ Read more

Earthquakes! In the laboratory...

Alexandre Schubnel (Laboratoire de Géologie, ENS) — January 12, 2017 Abstract: Because earthquakes are spectacular examples of uncontrollable catastrophes, the opportunity to study them under controlled conditions is unique and is, in fact, (...) | ↦ Read more

Images, robots and humans. Visit into a patient-driven inter-disciplinary research domain

Jocelyne Troccaz (TIMC-IMAG, Grenoble) — December 15, 2016 !! UNSUAL TIME: 2:00 P.M. !! Abstract: Computer-Assisted Medical Interventions (CAMI) aim at providing clinicians with assistive tools for improved diagnostic or therapeutic actions. (...) | ↦ Read more

The hydrogen atom for quantum gravity

Gerard ’t Hooft (Utrecht University, the Netherlands) — December 8, 2016 !! UNUSUAL LOCATION: SALLE DUSSANE, 45 RUE D’ULM !! Abstract: Three important insights are needed to understand quantum black holes, conservation of information, (...) | ↦ Read more

Prix des Trois Physiciens: The Single Molecule Game

Vincent Croquette (LPS, ENS) — November 24, 2016 — Award ceremony and special seminar by the 2016 recipient of the "Prix des Trois Physiciens". Abstract: We shall recall how single DNA molecules can be manipulated using small magnets and their (...) | ↦ Read more

Quantum simulations: from condensed matter to high energy models

Ignacio Cirac (Max-Planck-Institut für Quantenoptik, Munich) — November 17, 2016 Abstract: Many-body quantum systems are very hard to describe and simulate in general, since the dimension of the state space grows exponentially with the number of (...) | ↦ Read more

The hunt for a quantum algorithm for Graph Isomorphism

Cristopher Moore (Santa Fe Institute, USA) — October 20, 2016 Abstract: Of all the interfaces between physics and computer science that have grown up in the last few decades, quantum computing is one of the most exciting. Much of this (...) | ↦ Read more

Understanding old masters’ painting techniques

Laurence de Viguerie (Laboratoire d’Archéologie Moléculaire et Structurale, Paris) — October 13, 2016 Abstract: Nicolas Poussin once wrote ``I have neglected nothing”. When it comes to understanding past painting techniques, or optimizing the (...) | ↦ Read more

Atomic force microscopy provides new vistas for nano- and picoscience

Franz J. Giessibl (University of Regensburg, Germany
) — October 6, 2016 Abstract: Atomic force microscopy (AFM) and scanning tunneling microscopy (STM) image surfaces with atomic resolution enable local spectroscopies such as of current versus (...) | ↦ Read more

Gravitational Waves: Theory, Sources and Detections (2/2)

Department Lecture

Alexandre Le Tiec (LUTh, Observatoire de Paris) — September 15 and September 22, 2016 This Seminar is the second part of the yearly Department Lecture The first part is accessible here. Abstract: A century ago, Albert Einstein revolutionized (...) | ↦ Read more

Gravitational Waves: Theory, Sources and Detections (1/2)

Department Lecture

Alexandre Le Tiec (LUTh, Observatoire de Paris) — September 15 and September 22, 2016. This Seminar is the first part of the yearly Department Lecture. The second part is accessible here. Abstract: A century ago, Albert Einstein revolutionized (...) | ↦ Read more