Mainz 2026 – scientific programme
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A: Fachverband Atomphysik
A 34: Correlation Phenomena
A 34.1: Talk
Thursday, March 5, 2026, 14:30–14:45, N 25
Robust detection of entanglement transitions in the projective transverse field Ising model — •Felix Roser1, Etienne M. Springer2, Hans Peter Büchler1, and Nicolai Lang1 — 1Institute for Theoretical Physics III, University of Stuttgart, Germany — 2Institute for Theoretical Physics I, University of Stuttgart, Germany
We propose a scalable and noise-resilient protocol for the detection of the entanglement transition in a projective version of the transverse-field Ising model. Entanglement transitions are experimentally difficult to observe due to the inherent randomness of projective measurements which prohibits repeated state preparation, and due to noise in large-scale experimental settings. Our approach combines decoding techniques with classical shadow tomography to overcome both problems. This allows for experimentally accessible upper and lower bounds on the entanglement transition without post-selection or full state tomography. These bounds remain robust under noise and their sharpness is only limited by the noise rate.
Keywords: Entanglement transitions