5 papers
Slow dynamics from a nested hierarchy of frozen states
Vanja MariÄ, Luka Paljk, Lenart Zadnik
We identify the mechanism of slow heterogeneous relaxation in quantum kinetically constrained models (KCMs) in which the potential energy strength is controlled by a coupling param…
Superdiffusion and anomalous fluctuations in chiral integrable dynamics
Cristiano Muzzi, Devendra Singh Bhakuni, Marcello Dalmonte +2
Symmetries strongly influence transport properties of quantum many-body systems, and can lead to deviations from the generic case of diffusion. In this work, we study the impact of…
Integrability is generic in homogeneous U(1)-invariant nearest-neighbor qubit circuits
Marko Znidaric, Urban Duh, Lenart Zadnik
Integrability is an exceptional property believed to hold only for systems with fine-tuned parameters. Contrary, we explicitly show that in homogeneous nearest-neighbor qubit circu…
Quantum many-body spin ratchets
Lenart Zadnik, Marko Ljubotina, Žiga Krajnik +2
Introducing a class of SU(2) invariant quantum unitary circuits generating chiral transport, we examine the role of broken space-reflection and time-reversal symmetries on spin tra…
Integrability and charge transport in asymmetric quantum-circuit geometries
Chiara Paletta, Urban Duh, Balázs Pozsgay +1
We revisit the integrability of quantum circuits constructed from two-qubit unitary gates that satisfy the Yang-Baxter equation. A brickwork arrangement of typically corres…