Affiliation:
1. University of Zurich
2. Swiss Federal Institute of Technology in Zurich (ETH)
3. Munich Center for Quantum Science and Technology
4. Technical University of Munich
5. Paul Scherrer Institute
6. Royal Institute of Technology (KTH)
Abstract
We study the dissipative dynamics of a periodically driven
inhomogeneous critical lattice model in one dimension. The closed system
dynamics starting from pure initial states is well-described by a driven
Conformal Field Theory (CFT), which predicts the existence of both
heating and non-heating phases in such systems. Heating is inhomogeneous
and is manifested via the emergence of black-hole like horizons in the
system. The robustness of this CFT phenomenology when considering
thermal initial states and open systems remains elusive. First, we
present analytical results for the Floquet CFT time evolution for
thermal initial states. Moreover, using exact calculations of the time
evolution of the lattice density matrix, we demonstrate that for short
and intermediate times, the closed system phase diagram comprising
heating and non-heating phases, persists for thermal initial states on
the lattice. Secondly, in the fully open system with boundary
dissipators, we show that the nontrivial spatial structure of the
heating phase survives particle-conserving and non-conserving
dissipations through clear signatures in mutual information and energy
density evolution.
Subject
General Physics and Astronomy
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Quantum information geometry of driven CFTs;Journal of High Energy Physics;2023-09-13