A proposed experimental setup to measure the Loschmidt echo of a Luttinger liquid.
From the article:
Loschmidt Echo and the Many-Body Orthogonality Catastrophe in a Qubit-Coupled Luttinger LiquidBalázs Dóra, Frank Pollmann, József Fortágh, and Gergely Zaránd
Phys. Rev. Lett. 111, 046402 (2013)
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