- Letter
- Open Access
Anomalous universal adiabatic dynamics: The case of the Fredkin model
Phys. Rev. Research 5, L012048 – Published 27 March, 2023
DOI: https://doi.org/10.1103/PhysRevResearch.5.L012048
Abstract
When a system is driven across a second-order quantum phase transition, the number of defects which are produced scales with the speed of the variation of the tuning parameter according to a universal law described by the Kibble-Zurek mechanism. We study a possible breakdown of this prediction proving that the number of defects can exhibit another universal scaling law which is still related only to the critical exponents and , but differs from the Kibble-Zurek result. Finally, we provide an example, the deformed Fredkin spin chain, where this violation of the standard adiabatic dynamics can occur.
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