Browse Physics

An experimental team provides new supporting evidence for a self-annihilating quasiparticle inside specially prepared superconductors.

Theoretical calculations describe the behavior of a large quantum circuit by taking advantage of certain symmetrical relationships between superconducting elements.

Radiative heat transfer usually increases at shorter separation distances, but new calculations describe micron-scale cases where less heat is exchanged as two objects approach.

For sufficiently thin films of topological insulators, the metallic surface states that make these materials interesting become insulating.

A quantum theory of electrons in mesoscopic systems reveals the intervals at which they arrive after waiting to pass through a gate.

Nanowires made from indium-antimonide offer the best chance for detecting Majorana fermions that may ultimately perform as robust qubits.

Spin-dependent forces create quantum superpositions of different structures of a trapped ion crystal.

A novel quantized Hall effect is likely observable in a known ferromagnetic compound.

Researchers have developed a new technique to determine how far vibrational excitations travel before they scatter, an important parameter for some nanoscale devices.

Alternating voltages act as a conveyer belt for transporting excitons.

Quick detection of photogenerated electrons in a quantum dot may lead to a better method to transfer quantum information between optical and electrical media.

Mercury telluride—a semimetal in bulk—shows signs of becoming a topological insulator under strain.

Optical spectroscopy in quantum dots finds new ways to explore an old many-body problem.

A new topological insulator that approaches true insulating behavior in the bulk is synthesized.

Reciprocal space holds the key to stripe-domain ubiquity.

Photoemission measurements challenge the picture that the electronic states on the surface of the topological insulator Bi2Se3 form a perfect Dirac cone.

The phase coherence time of electrons in certain nanostructures may diverge at very low temperatures.

Noise goes hand in hand with how electrons tunnel through a single-electron transistor.

A time-tested photon interferometry technique is used to study the statistics of photons emitted by current fluctuations in a quantum conductor.

Microwave illumination of a high-mobility two-dimensional electron gas reveals quantum magneto-oscillations in both absorption coefficient and dc resistance.