课程安排

上课时间：2019年10月21日-25日

上课地点：华东师范大学中山北路校区 物理楼415教室

授课教授及课程大纲：

Jean-Francois Roch

巴黎-萨克雷高等师范学院 教授

Jean-Francois Roch is Professor at ENS Paris-Saclay (formely ENS Cachan) and an Overseas fellow of the Churchill College in Cambridge. After his doctorate (Université Paris-Sud, 1992), he was appointed chargé de recherche at CNRS in the group of Prof Philippe Grangier. There he implemented a quantum non-demolition (QND) measurement based on cold trapped atoms as the non-linear coupling medium. In 1998 he was appointed Professor of Physics at ENS Paris-Saclay. For the last 15 years, his research has been mostly devoted to investigate the properties of NV color centers in diamond and their applications to sensing. His research experience ranges from quantum optics, nanophotonics to quantum sensing, with an interest in material engineering. His current research investigates how NV color centers in diamond anvil cells can be used as quantum sensors to detect the specific quantum properties of materials that appear beyond the megabar pressure.

Lecture : « Color centers in diamond as artificial atoms for quantum technologies »

Color centers such as vacancies in alkali halide crystals have been extensively studied from the 30s. These defects can be created by irradiation or doping. The nitrogen-vacancy (NV) color center in diamond was identified in 1965 as a luminescent point defect with an electron spin structure in the ground state.In this set of two lectures, I will explain why a color center can be considered as an artificial atom embedded in a solid-state matrix and I will highlight the differences with a true atom in vacuum. I will then describe two main defects in diamond: the nitrogen-vacancy (NV) center and the silicon-vacancy (SiV) center. I will finally focus on the electronic spin properties of the NV center and its application to magnetic sensing.

Alice Sinatra

巴黎高等师范学院 教授

During 2000-2006, Alice Sinatra was Associate Professor in Paris VI University. And now, she is Full Professor in Sorbonne Uniersit´e.Her projects cover two main aspects of the physics of atomic Bose-Einstein condenstates. She gives lectures mainly in quantum and statistical mechanics at master level. She has published : 52 research articles (among which 10 PRL, 5 EPL, 1 Nature), 2 popularization articles, 2 book chapters. She has given 38 invited talks in international conferences and 18 invited seminars in Universities, among which 4 “colloquia” (Max Planck Munich, Univ. Sarland, LENS Florence, Univ. Hannover) and 1 “conversatorium” IPAN Warsav.

Lecture : « Spin squeezing for quantum metrology »
In the two lectures, I will introduce the concept of spin squeezing and its interest for quantum metrology. As a physical example I will consider the one-axis twisting spin squeezing process that occurs in a two-component interacting Bose-Einstein condensate. For this example I will present twomode analytical calculations and a more advanced analysis of the limitations due to decoherence and finite temperature. Always within the frame of the one-axis twisting Hamiltonian, I will also introduce entangled states beyond spin squeezing (non-linear spin squeezing and Schro¨dinger cats) and their sensitivity to decoherence. 

Nicolas Treps

巴黎第六大学 教授

Full professor at University Pierre et Marie Curie and Laboratoire Kastler Brossel (Paris, France). Nicolas Treps did his PhD on quantum effects in optical images in Paris. He then moved to the Australian National University for a post doctoral position on quantum information and optical measurement beyond standard quantum limit. Since 2002, he works at Laboratoire Kastler Brossel and teaches at University Pierre et Marie Curie. He pursues research on quantum imaging and started a new research line in quantum information and quantum metrology with frequency combs. He published around 70 articles in peer reviewed journals, including two patents.

Lecture : « Limits of sensitivity for optical measurement : semi-classical and quantum Cramér-Rao bound », «Modal approach to quantum metrology, example of spatial and spectral measurements »

Pierre-François Cohadon

巴黎高等师范学院 教授

After early quantum optics work in the field of Optical Parametric Oscillators, Pierre-François Cohadon joined what has become the Optomechanics and Quantum Measurement group at Laboratoire Kastler Brossel in 1996 to start graduate work. He was involved in the pioneering experiments performed at LKB: demonstration of feedback cooling of a mechanical resonator, demonstration of intracavity radiation pressure cooling, proof-of-principle demonstration of optomechanical correlations... For a few years, he has been involved as well in the Virgo project for the detection of gravitational waves, where he is in charge of radiation-pressure dynamical effects and the use of squeezing to further increase the sensitivity of Advanced Virgo.

Lecture : « Quantum-limited and quantum-enhanced Optomechanical Measurements »

The lecture will explore quantum sensitivity limits in optomechanical experiments, with a particular emphasis on gravitational-wave detection. After an introduction to noise in physics, we will explore two noise sources of utmost importance in high-sensitivity experiments: mechanical thermal noise and quantum optical noise. We will see how experiments are designed to limit the impact of thermal noise, and how the quantum noise of light limits the sensitivity of interferometric measurements. We will also discuss different techniques (squeezing, QND measurements...) to beat quantum limits, with a particular emphasis on the current implementation of vacuum squeezing in Advanced Virgo.

Baptiste Battelier

法国光学研究所波尔多分院 工程师

2013-2019, Ingénieur de Recherche en conception et en développement en expérimentation au CNRS. 2010-2013, Ingénieur de Recherche CDD au laboratoire Photonique Numérique, et Nanosciences (Institut d’Optique d’Aquitaine, Talence). 2007-2010, Ingénieur R&D CDD au sein de la plateforme IOTech (Institut d'optique, Palaiseau) Ingénieur. 2007-2010, Ingénieur R&D CDD au sein de la plateforme IOTech (Institut d'optique, Palaiseau) Ingénieur.

Lecture: « Inertial quantum sensors using matter waves »

In 1924 Louis de Broglie extended to any particle the concept of coexistence of waves and particles discovered by Albert Einstein in the case of light and photons. Consequently, the notion of matter waves leads to a strong analogy with optics, and phenomena such as diffraction and interferometry can be revealed for any particles and especially neutral atoms. Because atoms have a mass, they are naturally highly sensitive to gravitation and inertial forces. Unlike optical interferometers which are built for many purposes in metrology, atom interferometers constitute exquisite tools to probe the limits of some seminal principles in fundamental physics and to bring a technology breakthrough in many fields, such as gravimetry, geophysics and navigation. This lecture will first introduce the basics of atomic inertial sensors. Then it will give a general overview of the methods and the tools used with atom inertial sensors. Finally, some recent experimental achievements and project developments for different applications will be presented.

Sébastien Tanzilli

尼斯大学 教授 

Prof. Sébastien Tanzilli, Université Côte d’Azur, CNRS, Institut de Physique de Nice (INPHYNI). He is also the invited Porf. at East China Normal University. His fields of expertise contain Quantum Optics & Photonics, Quantum Information, Quantum Interferometry, Nonlinear & Guided-Wave Optics, Cold-Atom Physics, Lasers. He got UNS Medal (2013) , Prize from the iXCore Research Foundation (2009) and CNRS Bronze Medal (2008).

Lecture: « Interferometry-based measurement methods in quantum photonics for advanced determination of material properties »

White-light interferometry is widely used to qualify some properties of optical materials, such as chromatic dispersion, refractive indices, length, and many more. On the other hand, quantum optical interferometry exploits superposition of N-photon number states in order to perform phase-sensing with increased precision compared to classical measurements involving N photons. After a brief reminder on the necessary resources for producing telecom-compliant photonic entanglement, the concept of quantum white-light interferometry will be introduced. A particular focus will be made on the enabling properties of such entangled states, in terms of photon-number, spectral, and time correlations.

Tommaso Roscilde

里昂高等师范学院 教授

After obtaining his PhD at the University of Pavia (Italy) in 2003, Tommaso Roscilde has been a postdoctoral research associate at the University of Southern California (Los Angeles) and at the Max-Planck Institute for Quantum Optics, before joining the Laboratoire de Physique” of the Ecole Normale Supérieure de Lyon as a faculty member in 2008. He works on the theory of quantum condensed matter, with special emphasis on quantum simulation of many-body systems and many-body quantum entanglement. 

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课程表

法方负责人：

Tommaso Roscilde 里昂高等师范学院 教授

中方负责人:

武愕 研究员 华东师范大学精密光谱科学与技术国家重点实验室

联系人：

秦梦瑶 老师

华东师范大学精密光谱科学与技术国家重点实验室

地址：上海市中山北路3663号

邮编：200062

Email：ecnuqmy@126.com

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