Researchers Propose a Dissipative Protocol for Preparing Laughlin-Like Quantum States

Researchers at Tong Liu from Chalmers Next Labs, and colleagues have created a new method for generating Laughlin-like states, key to both understanding strongly correlated quantum matter and developing topological quantum computation. A purely dissipative protocol, utilising local loss and pump channels, prepares these states at a filling of 1/3, potentially extending to other fractional fillings. Findings confirm the Laughlin-like state as the exact unique steady state of the system, with analysis indicating efficient preparation on current quantum simulators. The method offers a viable pathway towards the practical creation and manipulation of fractional quantum Hall states, advancing the field of quantum simulation. A five-fold improvement in the speed of…