Time interfaces in materials with suddenly changing refractive indices create unique quantum optical phenomena including photon-pair production and destruction, tunable photon statistics, and opportunities for quantum state engineering.
Scientists have shown how three vortices can be linked in a way that prevents them from being dismantled. The structure of the links resembles a pattern used by Vikings and other ancient cultures, although this study focused on vortices in a special form of matter known as a Bose-Einstein condensate. The findings have implications for quantum computing, particle physics and other fields.
researchers at Tampere University discovered that quantum light behaves differently from classical light when focused, exhibiting an accelerated Gouy phase anomaly that not only contributes to the ongoing debate about fundamental optical phenomena but also promises enhanced precision in distance measurements.
A joint group of scientists has demonstrated that temperature difference can be used to entangle pairs of electrons in superconducting structures.
Researchers at at Aalto University and Lund University presents a sensitive quantum thermometry to measure the tiniest energies in superconducting circuits.
Researchers are designing a brain-imaging device that uses a new type of sensor placed on the surface of a person’s head.
Quantastica, the Helsinki-based Finnish startup has just announced the closing of a seed round led by Icebreaker.vc.
Researchers at Aalto University have yet reported ultrawide Josephson junctions (up to 80 μm wide) based on chemical-vapor-deposition graphene where the critical current was found to be uniformly distributed in the direction perpendicular to the current.