5 papers
Anatomy of information scrambling and decoherence in the integrable Sachdev-Ye-Kitaev model
Antonio M. GarcÃa-GarcÃa, Chang Liu, Lucas Sá +2
The growth of information scrambling, captured by out-of-time-order correlation functions (OTOCs), is a central indicator of the nature of many-body quantum dynamics. Here, we comp…
Theory of Irreversibility in Quantum Many-Body Systems
Takato Yoshimura, Lucas Sá
We address the longstanding challenge in quantum many-body theory of reconciling unitary dynamics with irreversible relaxation. In classical chaos, the unitary evolution operator d…
Integrability versus chaos in the steady state of many-body open quantum systems
Josef Richter, Lucas Sá, Masudul Haque
The Lindblad description of an open quantum system gives rise to two types of integrability, since the nonequilibrium steady state can be integrable independently of the Liouvillia…
Symmetry classes of classical stochastic processes
Lucas Sá, Pedro Ribeiro, Tomaž Prosen +1
We perform a systematic symmetry classification of the Markov generators of classical stochastic processes. Our classification scheme is based on the action of involutive symmetry…
Emergent Topology in Many-Body Dissipative Quantum Matter
Antonio M. GarcÃa-GarcÃa, Lucas Sá, Jacobus J. M. Verbaarschot +1
The identification, description, and classification of topological features is an engine of discovery and innovation in several fields of physics. This research encompasses a broad…