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The two-dimensional physical properties of semiconductor materials depend keenly on a number of factors, such as material purity, surface orientation, flatness, surface reconstruction, charge carrier polarity, and temperature.  JQI (*) scientists have optimized a number of these parameters to produce the first ever ultra-high mobility,  two-dimensional Si(111) transistor that allows charge carriers (electrons or holes) to flow through the same ...

Precise information about the magnetic properties of nuclei is critical for studies of what’s known as the ‘weak force.’ While people do not feel this force in the same way they feel electricity or gravity, its effects are universal. The weak force allows stuff to become unglued and form new elements through decay—the sun, for example, is powered through deuterium ...

Control systems are ubiquitous, and as essential as they are easy to overlook. For instance, turning the dial on a thermostat feels as trivial as moving a piece on a board game, but this control system is actually quite complex. Electricity is used to continuously compress a gas outside the home, so that the air will cool as it re-expands until the molecules inside are moving as slow as ...

A big part of the burgeoning science of quantum computation is reliably storing and processing information in the form of quantum bits, or qubits.  One of the obstacles to this goal is the difficulty of preserving the fragile quantum condition of qubits against unwanted outside influence even as the qubits interact among themselves in a programmatic way. 

Spin qubits are ...