Quantum field theory goes beyond quantum mechanics, incorporating the special theory of relativity and allowing the number of particles to change over time (such as when an electron and positron ...

A new discovery reveals how a mysterious quantum spin excitation — a solitary spinon — can exist alone, hinting at advances in quantum technologies. Scientists from the Faculty of Physics at the Unive ...

Scientists have discovered a revolutionary new method for creating quantum states by twisting materials at the M-point, ...

Flattening electron bands effectively slows down electrons, enhancing their mutual interactions, and giving rise to novel quantum phenomena.

Most importantly, we define a quantum version of Lovász' famous ϑ function on general operator systems, as the norm-completion (or stabilization) of a “naive” generalization of ϑ.

A technique for describing the time evolution of the density matrix by diagrams is developed. When applied to time harmonic optical mixing problems, the method allows one to write down the required ...