Department of Physics

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Steering is an essential feature of non-locality in quantum theory 2

Steering is an essential feature of non-locality in quantum theory

A physical theory is called non-local when observers can produce instantaneous effects over distant systems. Non-local theories rely on two fundamental effects: local uncertainty relations and steering of physical states at a distance. In quantum mechanics, the former one dominates the other in non-local games. A new study proved that the entanglement-based steering also plays an important role.

non-Hermitian Chern insulator

Topology of non-Hermitian systems unraveled

The study of topological materials has been an important task in condensed matter physics over the past few decades and was the subject of the 2016 Nobel prize in physics. Recent experiments and theoretical works have shown that unexpected phenomena occur in many open, non-equilibrium and complex systems that can be described using non-Hermitian physics.

XENON1T installation in the underground hall of Laboratori Nazionali del Gran Sasso. The three story building houses various auxiliary systems. The cryostat containing the LXeTPC is located inside the large water tank next to the building. Photo by Roberto Corrieri and Patrick De Perio.”

The world's largest dark matter detector, XENON1T, reaches a new level of sensitivity

The international collaboration, XENON, which includes members of Stockholm University has built the world's most sensitive detector for dark matter. After one year of data collection, the experiment has reached a greater sensitivity than ever before.