A Landauer formula for the current through a region of interacting electrons is derived using
the nonequilibrium Keldysh formalism. The case of proportionate coupling to the left and …

We consider a mesoscopic region coupled to two leads under the influence of external
timedependent voltages. The time dependence is coupled to source and drain contacts, the gates …

The gut is home to trillions of microorganisms that have fundamental roles in many aspects
of human biology, including immune function and metabolism 1 , 2 . The reduced diversity of …

The infinite-U Anderson model is applied to nonequilibrium transport through a quantum dot
containing two spin levels weakly coupled to two leads. At low temperatures, the Kondo …

Quorum-sensing bacteria communicate with extracellular signal molecules called autoinducers.
This process allows community-wide synchronization of gene expression. A screen for …

The conductance through a quantum dot is calculated via an Anderson model of a site weakly
coupled to ideal leads with an on-site Coulomb interaction. As the chemical potential is …

The infinite-U Anderson model is applied to transport through a quantum dot. The current
and density of states are obtained via the noncrossing approximation for two spin-degenerate …

The ongoing miniaturization of solid state devices often leads to the question: “How small
can we make resistors, transistors, etc., without changing the way they work?” The question …

Chemotaxis allows bacteria to follow gradients of nutrients and other environmental stimuli.
The bacterium Escherichia coli performs chemotaxis via a run-and-tumble strategy in which …

In the wild, bacteria are predominantly associated with surfaces as opposed to existing as
free-swimming, isolated organisms. They are thus subject to surface-specific mechanics, …