## Daniel Suchet

**Office :**!IPVF

**Department/Laboratory/Direction :**CA/DER/DEP/PHYS

**Website :**http://www.penangol.fr

**Additional function :**

CA/DER/LAB/IPVF

**Presentation :**

Enseignant-chercheur au dĂ©partement de physique et Ă l'Institut du PhotovoltaĂŻque d'Ile de France (IPVF).

Avant Ă§a, ingĂ©nieur de l'Ecole polytechnique (X2008), Master Physique Quantique de l'Ecole Normale SupĂ©rieure de Paris, ThĂ¨se au Laboratoire Kastler Brossel, JSPS Fellowship au RCAST (UniversitĂ© de Tokyo), postdoc ANR Industrial Chair au Laboratoire de Physique des Interfaces et des Couches Minces (Ecole polytechnique).

Membre du comitĂ© Ă©xĂ©cutif du Tournoi International des Physiciens (IPT), Ă©diteur en chef du journal pĂ©dagogique Emergent Scientist, membre de la commission Jeune de la SociĂ©tĂ© FranĂ§aise de Physique.

MĂ©diation scientifique : confĂ©rences grand public ("Comment parler de Science avec de la Fiction ?", "Energie et sociĂ©tĂ©"), Ambassadeur de la FĂŞte de la Science pour la rĂ©gion ĂŽle de France (2018)

**Publications :**

Vous trouverez l'ensemble des publications de Suchet Daniel sur le site de l'annuaire de l'Ecole

**Moodle :**

#### PHY/MEC471 - MODAL - Tournoi international de Physique (IPT) (2021-2022)

#### PHY555 - Energy and Environment (2021-2022)

**PHY555 - Energy and environment**

Energy is one of the most critical challenges in our societies. Our daily life relies on the availability of large amounts of energy to perform all kind of transformations in all kinds of sectors (industry, transport, residential…). While this wealth of energy has enabled spectacular evolutions since the first industrial revolution, the current model hits physical constraints of the carrying capacity of our planet, as epitomized by resource exhaustion, climate change, and environmental impacts. An energy transition, chosen or not, will take place over the upcoming decades.

The aim of this physics course is to give you an overview of the energy sectors, both from production and consumption perspectives and to show how thermodynamics, and simple physics laws, can be applied to capture the main orders of magnitudes and scaling laws of the problem. A basic knowledge of basic physics, and especially thermodynamics, (undergrad level) is therefore required.

Lecture 1 : Introduction to energy, 1st and 2nd laws, key indicators (primary vs final energy, energy and power density, conversion efficiency, EROI…)

Lecture 2 : Limiting factors, oil peak & climate change

Lecture 3 : Fossile fuels (Oil, gas & coal)

Lecture 4 : Heat engines (motors and turbines)

Lecture 5 : Nuclear energy

Lecture 6 : Solar energy

Lecture 7 : Mechanical energy (wind & hydro), electrical grid stability

Lecture 8 : Heat management, from geothermy to building insulation.

Lecture 9 : Perspectives (hydrogen, batteries, CCS)

ECTS Credits : 5

#### PHY205 - Introduction to Quantum Physics (2021-2022)

Prerequisites:

PHY101, PHY104, PHY105, PHY202

Recommended previous courses:

PHY103, PHY106, PHY107, PHY201

Quantum physics is the theoretical framework

for the description of nature at

the atomic length scale and below. According

to our present knowledge, it encompasses

the most fundamental physical

theory, and is the basis for everyday applications

like semi-conductor electrons,

lasers, medical imaging to name only a

few. In PHY205, students discover quantum

physics through the formalism of

Schrödinger’s wave mechanics, and learn

to describe simple, non-relativistic quantum

phenomena, mainly in one dimension,

by applying mathematics of classical

waves to which they have become familiar.

Subsequently, they are introduced to

the quantum-mechanical formalism of

which the central notion is the quantum

state. Students also become familiar with

the underlying mathematical structures,

Hilbert spaces and Hermitian operators,

and discover the quantum description

of known classical systems and concepts

such as free motion, the harmonic oscillator

and angular momentum. The course

also allows students to explore purely

quantum phenomena that have no classical

counterpart, such as the electron

spin, and a brief overview on quantum

communication may be provided. Throughout

the course, the abstract theory will

be illustrated by historic experimental

evidence and modern applications whenever

appropriate.

Upon completion of this course, students

will be able to explain the conceptual

difference between classical and quantum

behavior, and solve simple one- or

two-dimensional problems of quantum

mechanics in the framework of wave

mechanics. Furthermore, they will be

able to wield the abstract formalism of

quantum states in Hilbert spaces, and to

apply it on simple quantum systems.

Quantum physics is the theoretical framework for the description of nature at the atomic length scale and below. According to our present knowledge, it encompasses the most fundamental physical theory, and is the basis for everyday applications like semi-conductor electrons, lasers, medical imaging to name only a few. In PHY 205, students discover quantum physics through the formalism of Schrödinger’s wave mechanics, and learn to describe simple, non-relativistic quantum phenomena, mainly in one dimension, by applying mathematics of classical waves to which they have become familiar. Subsequently, they are introduced to the quantum-mechanical formalism of which the central notion is the quantum state. Students also become familiar with the underlying mathematical structures, Hilbert spaces and Hermitian operators, and discover the quantum description of known classical systems and concepts such as free motion, the harmonic oscillator and angular momentum. The course also allows students to explore purely quantum phenomena that have no classical counterpart, such as the electron spin, and a brief overview on quantum communication may be provided. Throughout the course, the abstract theory will be illustrated by historic experimental evidence and modern applications whenever appropriate.

Upon completion of this course, students will be able to explain the conceptual difference between classical and quantum behavior, and solve simple one- or two-dimensional problems of quantum mechanics in the framework of wave mechanics. Furthermore, they will be able to wield the abstract formalism of quantum states in Hilbert spaces, and to apply it on simple quantum systems.

#### PHY208 - Atoms and Lasers (2021-2022)

Recommended previous course: PHY202

Light amplification by stimulated emission

of radiation (laser) holds a unique

place in the heart of physicists. Lasers

are at the same time a spectacular manifestation

of a quantum phenomenon, a

powerful and versatile tool ranging from

industrial applications (laser processing,

telemetry…) to fundamental research

(spectroscopy, cold atoms…) and a

remarkable workbench to acquire a better

understanding of key concepts in physics.

PHY 208 is an introduction to lightmatter

interactions through the intricate

relationship between atoms and lasers.

Importantly, this course will build on

experimental situations, and introduce

models with increasing complexity to

explain the observed results. As the basic

component of a laser is a source of light,

the course will start with basic spectroscopy,

and several atomic models will be

considered (Bohr model, Einstein coefficients,

Schrodinger model, etc.). The

emission of continuous laser light by

such atoms will be described from both

a classical (effective medium) and semiclassical

(population inversion) perspective.

The mirror will then be turned back

on the atoms, and several applications of

laser light revealing the behavior of atoms

will be discussed (Light, Stark and Zeeman

shift, Rabi oscillations etc.). Finally,

some practical perspectives on advanced

laser technologies and applications will be

given.

This course will not add many new physical

concepts, but rather show how results

obtained in previous courses (especially

in optics, classical and quantum mechanics)

can be used. Upon completion of

this course, students will have acquired

key understandings concerning the bilateral

interactions between laser devices

and atoms. They will have understood the

circumstances under which the emission

of useful coherent light can be produced,

and also the information that such light

can provide when analyzing atomic systems.

They will also be able to identify the

relevance, necessity, and limitations that

classical and quantum models display

when analyzing problems in this field.

They will also gain familiarity with some

laser device technologies.

Light amplification by stimulated emission of radiation (laser) holds a unique place in the heart of physicists. Lasers are at the same time a spectacular manifestation of a quantum phenomenon, a powerful and versatile tool ranging from industrial applications (laser processing, telemetry...) to fundamental research (spectroscopy, cold atoms,...) and a remarkable workbench to acquire a better understanding of key concepts in physics.

PHY208 is an introduction to light-matter interactions through the intricate relationship between atoms and lasers. Importantly, this course will build on experimental situations, and introduce models with increasing complexity to explain the observed results. As the basic component of a laser is a source of light, the course will start with basic spectroscopy, and several atomic models will be considered (Bohr model, Einstein coefficients, Schrodinger model, etc.). The emission of continuous laser light by such atoms will be described from both a classical (effective medium) and semi-classical (population inversion) perspective. The mirror will then be turned back on the atoms, and several applications of laser light revealing the behavior of atoms will be discussed (Light, Stark and Zeeman shift, Rabi oscillations etc.). Finally, some practical perspectives on advanced laser technologies and applications will be given.

This course will not add many new physical concepts, but rather show how results obtained in previous courses (especially in optics, classical and quantum mechanics) can be used. Upon completion of this course, students will have acquired key understandings concerning the bilateral interactions between laser devices and atoms. They will have understood the circumstances under which the emission of useful coherent light can be produced, and also the information that such light can provide when analyzing atomic systems. They will also be able to identify the relevance, necessity, and limitations that classical and quantum models display when analyzing problems in this field. They will also gain familiarity with some laser device technologies.

#### PHY612 - Coriolis seminars : Energy research and environment (2021-2022)

#### CoursPHY657 - Building and Using Models for the Energy Transition (2021-2022)

Models are everywhere, and especially when it comes to the energy and climate transitions. They provide a rationale for decision making, and constitute the standard way to test and improve our understanding. Yet, what a “model” is can be very different from one actor to another. Furthermore, models should be used with methodological care: any model is developed to address specific questions, in a specific validity range, with specific assumptions. However, while the output and conclusions of the models are often readily used and debated, the methodology and the validity of hypothesis and results are not often enough closely scrutinized.

As scientists involved in the energy and climate transitions, you will have to deal with many different models – whether you developed them yourselves or simply use their results. The aim of this course is to provide you with a critical methodology based on a physicist’s toolbox to help you use these models as wisely as possible.

As a note of caution : this is not a course in applied mathematics : efficient programming is important, as is a careful choice of algorithms, but this comes after the general framework is chosen and the direction set. Nor is it a course on big data analysis. An efficient algorithm can produce irrelevant or wrong data, and using up to date data analysis tool will not help to produce sensible conclusions.

The first lectures will introduce basic concepts of modelling (modeling vs simulation, prediction vs prospection…) as well as a set of physics methods relevant to the field (perturbative approach, scaling laws...). Following lectures will be presented by experts in the transition sector who will share their own experience of modelling. Students will select a case study they will investigate throughout the course, building their own model to compare and test against the existing literature*.*

#### PHY530 - Refresher Course in Physics (2021-2022)

#### PHY657 - Building and Using Models for the Energy Transition (2021-2022)

Models are everywhere, and especially when it comes to the energy and climate transitions. They provide a rationale for decision making, and constitute the standard way to test and improve our understanding. Yet, what a “model” is can be very different from one actor to another. Furthermore, models should be used with methodological care: any model is developed to address specific questions, in a specific validity range, with specific assumptions. However, while the output and conclusions of the models are often readily used and debated, the methodology and the validity of hypothesis and results are not often enough closely scrutinized.

As scientists involved in the energy and climate transitions, you will have to deal with many different models – whether you developed them yourselves or simply use their results. The aim of this course is to provide you with a critical methodology based on a physicist’s toolbox to help you use these models as wisely as possible.

As a note of caution : this is not a course in applied mathematics : efficient programming is important, as is a careful choice of algorithms, but this comes after the general framework is chosen and the direction set. Nor is it a course on big data analysis. An efficient algorithm can produce irrelevant or wrong data, and using up to date data analysis tool will not help to produce sensible conclusions.

The first lectures will introduce basic concepts of modelling (modeling vs simulation, prediction vs prospection…) as well as a set of physics methods relevant to the field (perturbative approach, scaling laws...). Following lectures will be presented by experts in the transition sector who will share their own experience of modelling. Students will select a case study they will investigate throughout the course, building their own model to compare and test against the existing literature*.*

#### GEN507 - PrĂ©sentation du PA Energies du XXIÂ° siĂ¨cle (2021-2022)

#### PHY430 - Physique quantique avancĂ©e (2021-2022)

L’objectif de l’enseignement de physique quantique avancée (PHY430), dispensé en deuxième

année du cycle ingénieur de l’Ecole Polytechnique, est de poursuivre l’apprentissage

entamé en première année (PHY361). En nous appuyant sur les principes fondamentaux déjà acquis,

nous pourrons découvrir de nouvelles méthodes exploitant aux mieux les symétries du problème étudié ou mettant en œuvre les approximations appropriées. A l’aide d’un nouveau postulat permettant de traiter le cas des particules indiscernables, il deviendra alors possible d’aborder des systèmes plus complexes comme les atomes, les molécules et les solides. Quelques technologies quantiques seront également évoquées notamment lors de la dernière séance portant sur la transition de la première à la seconde révolution quantique.

Contenu détaillé : principes fondamentaux ; symétrie et physique quantique (invariance par translation, notamment dans un cristal périodique) ; méthodes d'approximation (perturbations stationnaires et variations) ; moment cinétique (invariance par rotation) ; atome d'hydrogène ; particule dans un champ magnétique ; de l'addition de deux spins 1/2 aux horloges atomiques ; particules indiscernables et structure des atomes ; états non stationnaires (perturbations dépendant du temps et règle d'or de Fermi) ; de la première à la seconde révolution quantique.

**Langue du cours :** Français

**Credits ECTS :** 5