Monday, June 24, 2024 › | |
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
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›9:00 (1h)
M. Ballesteros: Mathematical aspects of non-relativistic quantum electrodynamics
In this mini-course we study the so-called non relativistic quantum electrodynamics (NR QED). NR QED describes non relativistic particles coupled to the quantized electromagnetic field and it is a low energy approximation of quantum electrodynamics. The course is intended to be accessible to students that have no background on the mathematical formalism of quantum field theory. For this reason, basic mathematical tools will be presented. We will cover, for example, operators defined on Fock spaces (including creation and annihilation operators) and we will state and prove some basic properties and results. In the last part of the course, we will present more advanced topics such as resonances. › Amphi
9:00 - 10:00 (1h)
M. Ballesteros: Mathematical aspects of non-relativistic quantum electrodynamics
Amphi
In this mini-course we study the so-called non relativistic quantum electrodynamics (NR QED). NR QED describes non relativistic particles coupled to the quantized electromagnetic field and it is a low energy approximation of quantum electrodynamics. The course is intended to be accessible to students that have no background on the mathematical formalism of quantum field theory. For this reason, basic mathematical tools will be presented. We will cover, for example, operators defined on Fock spaces (including creation and annihilation operators) and we will state and prove some basic properties and results. In the last part of the course, we will present more advanced topics such as resonances.
10:00 - 10:30 (30min)
Coffee break
Coffee Room
›10:30 (1h)
M. Grillakis: On the Evolution of interacting Bosons
I will consider the time evolution of N interacting Bosons (two body interaction) via a potential of the form N^{3β}V(N^β|x − y|) where 0 < β ≤ 1. I will derive what is called the Hartree-Fock-Bogoliubov approximation which results in a coupled system of Schrödinger type equations. These equations describe the coupling between the mean field (Nonlinear cubic Schrödinger equation) with the wave function of a pair of particles. Next I will explain some of the analysis needed to establish global in time existence of the limit equation (as N → ∞) of the coupled system. This part involves establishing Strichartz type estimates independent of N where N is the number of particles, since we are interested in the limit N → ∞ of the equations. This work is in collaboration with Matei Machedon, Zehua Zhang, Jacky Chong as well as some recent seminal work of X. Huang. › Amphi
10:30 - 11:30 (1h)
M. Grillakis: On the Evolution of interacting Bosons
Amphi
I will consider the time evolution of N interacting Bosons (two body interaction) via a potential of the form N^{3β}V(N^β|x − y|) where 0 < β ≤ 1. I will derive what is called the Hartree-Fock-Bogoliubov approximation which results in a coupled system of Schrödinger type equations. These equations describe the coupling between the mean field (Nonlinear cubic Schrödinger equation) with the wave function of a pair of particles. Next I will explain some of the analysis needed to establish global in time existence of the limit equation (as N → ∞) of the coupled system. This part involves establishing Strichartz type estimates independent of N where N is the number of particles, since we are interested in the limit N → ∞ of the equations. This work is in collaboration with Matei Machedon, Zehua Zhang, Jacky Chong as well as some recent seminal work of X. Huang.
›11:30 (1h)
S. Cenatiempo: Quantum Mechanics at our scale: a mathematical challenge
While the theory of quantum mechanics describes interactions between constituents of matter at the microscopic scale, the effects of these interactions may lead to fascinating quantum mechanics phenomena at a macroscopic scale. The discovery of such phenomena, including superfluidity and superconductivity as two pioneering examples, has led to extraordinary developments in realizing new materials that exploit the principles of quantum mechanics to exhibit innovative behaviours. In these lectures, we will discuss the challenge of developing mathematical models that rigorously describe how these macroscopic effects emerge from the microscopic scale, focusing on the paradigmatic example of the interacting Bose gas. › Amphi
11:30 - 12:30 (1h)
S. Cenatiempo: Quantum Mechanics at our scale: a mathematical challenge
Amphi
While the theory of quantum mechanics describes interactions between constituents of matter at the microscopic scale, the effects of these interactions may lead to fascinating quantum mechanics phenomena at a macroscopic scale. The discovery of such phenomena, including superfluidity and superconductivity as two pioneering examples, has led to extraordinary developments in realizing new materials that exploit the principles of quantum mechanics to exhibit innovative behaviours. In these lectures, we will discuss the challenge of developing mathematical models that rigorously describe how these macroscopic effects emerge from the microscopic scale, focusing on the paradigmatic example of the interacting Bose gas.
12:30 - 14:30 (2h)
Lunch
Restaurant Universitaire
›14:30 (1h)
M. Falconi: Scaling limits in quantum models of particle-field interaction
In these lectures I will review a series of recent results on the interaction between quantum particles and fields, in different scaling regimes (all somewhat related to Bohr's correspondence principle). From a mathematical perspective, infinite dimensional semiclassical analysis lies at the backbone of our results; we will review its main developments and connect them with the study of systems of quantum particles in interaction with a semiclassical field, as well as with the equations of classical electrodynamics. › Amphi
14:30 - 15:30 (1h)
M. Falconi: Scaling limits in quantum models of particle-field interaction
Amphi
In these lectures I will review a series of recent results on the interaction between quantum particles and fields, in different scaling regimes (all somewhat related to Bohr's correspondence principle). From a mathematical perspective, infinite dimensional semiclassical analysis lies at the backbone of our results; we will review its main developments and connect them with the study of systems of quantum particles in interaction with a semiclassical field, as well as with the equations of classical electrodynamics.
›15:30 (1h)
I. M. Sigal: Gross-Pitaevski equation
I. M. Sigal: Gross-Pitaevski equation - The Gross-Pitaevski equation describes superfluids and Bose-Einstein condensates (Nobel prizes 1996 and 2001) in ``macroscopic'' regime. Exactly the same equation appeared in theories of plasma and surface waves where it is called the nonlinear Schrödinger equation (NLS). Mathematically, it is a key nonlinear Hamiltonian partial differential equation (PDE) and it has led to rich mathematics. In this lecture, I will give an introduction into the theory of the GPE, proceeding quickly to recent results and exciting open problems. › Amphi
15:30 - 16:30 (1h)
I. M. Sigal: Gross-Pitaevski equation
Amphi
I. M. Sigal: Gross-Pitaevski equation - The Gross-Pitaevski equation describes superfluids and Bose-Einstein condensates (Nobel prizes 1996 and 2001) in ``macroscopic'' regime. Exactly the same equation appeared in theories of plasma and surface waves where it is called the nonlinear Schrödinger equation (NLS). Mathematically, it is a key nonlinear Hamiltonian partial differential equation (PDE) and it has led to rich mathematics. In this lecture, I will give an introduction into the theory of the GPE, proceeding quickly to recent results and exciting open problems.
16:30 - 17:00 (30min)
Coffee break
Coffee Room
17:00 - 18:00 (1h)
J. Fröhlich: Why text-book Quantum Mechanics calls for a completion, and why the "ETH - Approach to Quantum Mechanics" may provide an adequate one. Cancelled
Amphi
Jürg Fröhlich
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