Total Current Blockade in an Ultracold Dipolar Quantum Wire
Líney H. Kristinsdóttir, Olov Karlström, J. Bjerlin +4 more
Cold-atom systems offer a great potential for the future design of new mesoscopic quantum systems with properties that are fundamentally different from semiconductor nanostructures. Here, we investigate the quantum-gas analogue of a quantum wire and find a new scenario for the quantum transport: Attractive interactions may lead to a complete suppression of current in the low-bias range, a total current blockade. We demonstrate this effect for the example of ultracold quantum gases with dipolar interactions.
arXiv:1204.2966•Physical Review Letters•Feb 21, 2013•16 citations