Monday, March 2, 2020

Scientists succeed in measuring electron spin qubit without demolishing it

Scientists have succeeded in taking repeated measurements of the spin of an electron in a silicon quantum dot, without changing the spin in the process. This type of 'non-demolition' measurement is important for creating quantum computers that are fault tolerant.

Twisted 2D material gives new insights into strongly correlated 1D physics

Researchers have revealed that the possibilities created by stacking two sheets of atomically thin material atop each other at a twist are even greater than expected.

Handed light throws electronic curve balls in quantum flatland

An international team of researchers has demonstrated that the Berry curvature - an important property of quantum materials - can be imaged with chiral light.

Atomic vacancy as quantum bit

Phycsicists for the first time have experimentally observed spin centers in two-dimensional materials. Such centers can act as quantum bits - even at room temperature.

Ultrafast probing reveals intricate dynamics of quantum coherence

Ultrafast, multidimensional spectroscopy unlocks macroscopic-scale effects of quantum electronic correlations. Researchers found that low-energy and high energy states are correlated in a layered, superconducting material LSCO (lanthanum, strontium, copper, oxygen).