Study Programmes 2015-2016
PHYS2027-2  
Ultracold atoms and Bose-Enstein condensates
Duration :
25h Th
Number of credits :
Master in physics (120 ECTS)4
Master in physics (120 ECTS)4
Master in physics (120 ECTS)4
Master in physics (120 ECTS)4
Master in physics (60 ECTS)4
Lecturer :
Peter Schlagheck
Language(s) of instruction :
French language
Organisation and examination :
Teaching in the second semester
Units courses prerequisite and corequisite :
Prerequisite or corequisite units are presented within each program
Course contents :
This course gives an introduction into the physical principles of Bose-Einstein condensation and their realization with ultracold atoms. We shall particularly discuss - quantum statistical physics - Bose-Einstein condensation with noninteracting particles - cold atoms in magnetic and optical traps - atom-atom interaction - mean-field theory of an interacting Bose-Einstein condensate - collective excitations within a condensate - superfluidity
Learning outcomes of the course :
The aim of this course is to understand the basics of Bose-Einstein condensation with ultracold atoms on the level that one is able to appreciate state-of-the-art experiments on the topic. This will also permit us to deepen the general knowledge of advanced quantum mechanics.
Prerequisite knowledge and skills :
It is recommended to have followed the course "Advanced quantum mechanics", in order to better understand topics of advanced quantum theory that are needed to explain Bose-Einstein condensation with ultracold atoms (such as many-particle theory or scattering theory).
Planned learning activities and teaching methods :
Mode of delivery (face-to-face ; distance-learning) :
The course will be given "ex cathedra" on the blackboard, in combination with the presentation of transparencies.
Recommended or required readings :
Recommended literature: - K. Huang: "Statistical Mechanics" (John Wiley & Sons, 1963) - C.J. Pethick & H. Smith: "Bose-Einstein Condensation in Dilute Gases" (Cambridge University Press, 2002) - L. Pitaevskii & S. Stringari: "Bose-Einstein Condensation" (Oxford University Press, 2003)
Assessment methods and criteria :
The evaluation will be done by an individual oral exam of 30 minutes on the contents of the course.
Work placement(s) :
Organizational remarks :
Contacts :
Peter Schlagheck Département de Physique Université de Liège IPNAS, building B15, office 0/125 Sart Tilman 4000 Liège Phone: 04 366 9043 Email: Peter.Schlagheck@ulg.ac.be http://www.pqs.ulg.ac.be
Items online :
Bosons and fermions
3 indistinguishable quantum particles in 3 states
calculation of the specific heat
calculation of the specific heat for a noninteracting Bose gas confined within a harmonic potential
Specific heat in free space
specific heat of a Bose gas in free space as a function of the temperature
Specific heat in a harmonic oscillator
specific heat of a Bose gas in a harmonic oscillator as a function of the temperature
Zeeman splitting for 87Rb
Zeeman splitting of the hyperfine states of 87Rb as a function of the magnetic field
variational energy of a Bose-Einstein condensate
ground-state energy of a Bose-Einstein condensate within an isotropic harmonic oscillator potential as a function of the variational parameter
wavefunctions of a Lennard-Jones potential
continuum eigenfunctions of a Lennard-Jones potential for different depths of the potential
Bose gas in 1, 2, and 3 dimensions
curves of constant N in the \mu-T diagram
Bose function
graphs of the Bose function g_p(z) for different p
s-wave scattering length in a Lennard-Jones potential
s-wave scattering length in a Lennard-Jones potential as a function of the depth of the potential
s-wave scattering length in a potential well
s-wave scattering length in a potential well as a function of the depth of the well
Bogoliubov spectrum of a moving Bose-Einstein condensate
Bogoliubov spectrum of a moving Bose-Einstein condensate for different speeds v0
Bogoliubov spectrum of a free Bose-Einstein condensate
dispersion relation of the Bogoliubov modes of a Bose-Einstein condensate within free space