- Home
- Publications
- News
- Ultracold gallery
- Group Videos
- Research
- People/Contact
- Courses/Outreach
- Physics Courses
- Spring 2022 P334
- Autumn 2021 P238
- Summer 2021 P334
- Spring 2021 P143
- Spring 2021 P334
- Spring 2020 P143
- Spring 2020 P334
- Spring 2019 P226
- Autumn 2018 P238
- Spring 2018 P226
- Autumn 2017 P452
- Spring 2017 P226
- Fall 2016 P154
- Spring 2016 P334
- Spring 2016 P226
- Spring 2015 P334
- Spring 2014 (ETH Zürich)
- Autumn 2013
- Winter 2013
- Autumn 2012
- Winter 2012
- Spring 2011
- Winter 2010
- Spring 2009
- Autumn 2008
- Spring 2008
- Autumn 2007
- Winter 2007
- Autumn 2006
- Spring 2006
- SMART program
- Physics Courses
- Open Positions
- Collaborative project
- Internal
2009 Cs Experiment
Tunable Atomic and Molecular Quantum Gases in Optical Lattices
2009 - In situ Observation of incompressible Mott-insulating domains in ultracold atomic gases
N. Gemelke, X. Zhang, C.-L. Hung, C. Chin Nature 460, 995 (2009)
Near absolute zero temperature, quantum fluctuations can drive a phase transition in the many-body ground state of the system. A prominent example of such a quantum phase transition is the change from a superfluid (SF) to a Mott-insulating (MI) phase in a system of repulsively interacting bosons in a lattice potential.
Competing orders in the quantum many-body ground state:
Superfluid at low lattice depth: delocalized atomic wavefunction (Kinetic energy dominates) |
Mott Insulator at high lattice depth: integer number of atoms per site (Interaction energy dominates)
|
![]() |
![]() |
How to realize it?