Entanglement characterization touches a new milestone
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- Published: Thursday, 30 November 2023
Entanglement is the backbone of quantum information science. Quantum computers and simulators can outperform classical calculations when simulating complex many-body quantum states. In modern times, characterizing entanglement in quantum simulations is a tricky task. Due to the fragile nature of entanglement and the exponentially increasing number of measurements required for characterizing entanglement with the system sizes, experimental techniques and analysis methods need to be upgraded to more sample-efficient methods. Here, theoretical ideas originally formulated for conformal field theories come into play. These ideas state that a mixed state, segregated from continuum spatial and temporal systems, can be represented by a Gibbs ensemble. The original concept was formulated for lattice models and has now been tested on a trapped ion quantum simulator.
