Journal
SCIENCE
Volume 337, Issue 6098, Pages 1069-1071Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1223175
Keywords
-
Categories
Funding
- National Centers for Competence in Research Materials with Novel Electronic Properties (NCCR MaNEP)
- Quantum Science and Technology (QSIT), European Research Council (ERC) project Synthetic Quantum Many-Body Systems (SQMS), Framework Program 7 (FP7) project Nanodesigning of Atomic and Molecular Quantum Matter
- ETH Zurich
- European Union (EU) through a Marie Curie Fellowship
Ask authors/readers for more resources
In a mesoscopic conductor, electric resistance is detected even if the device is defect-free. We engineered and studied a cold-atom analog of a mesoscopic conductor. It consists of a narrow channel connecting two macroscopic reservoirs of fermions that can be switched from ballistic to diffusive. We induced a current through the channel and found ohmic conduction, even when the channel is ballistic. We measured in situ the density variations resulting from the presence of a current and observed that density remains uniform and constant inside the ballistic channel. In contrast, for the diffusive case with disorder, we observed a density gradient extending through the channel. Our approach opens the way toward quantum simulation of mesoscopic devices with quantum gases.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available