Quantum transport – University of Copenhagen

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Condensed Matter Theory > Research > Quantum transport

Quantum transport

A central activity in the condensed matter theory group is electron transport through nanoscopic systems such as quantum dots, quantum wires, and single molecule transistors contacted electronically by metallic leads. 

A finite bias-voltage between the leads drives a current, and we are facing a challenging problem of a strongly interacting quantum many-body system,- out of equilibrium. This problem comes in many versions, depending on the specific choice of dot, wire or molecule, as well as the choice or combination of normal metal, superconducting or ferromagnetic leads.

A range of surprising phenomena, some with potential relevance for future nano electronics, spintronics and quantum computing, are revealed by our studies of simplified model systems.

We use a combination of analytical and numerical tools to solve models describing the essential physics of the electron transport. In many cases, we work in close collaboration with experimental groups both in house and abroad.