Scrambling Dynamics across a Thermalization-Localization Quantum Phase Transition.

08:00 EDT 18th October 2019 | BioPortfolio

Summary of "Scrambling Dynamics across a Thermalization-Localization Quantum Phase Transition."

We study quantum information scrambling, specifically the growth of Heisenberg operators, in large disordered spin chains using matrix product operator dynamics to scan across the thermalization-localization quantum phase transition. We observe ballistic operator growth for weak disorder, and a sharp transition to a phase with subballistic operator spreading. The critical disorder strength for the ballistic to subballistic transition is well below the many body localization phase transition, as determined from finite size scaling of energy eigenstate entanglement entropy in small chains. In contrast, we find that the transition from subballistic to logarithmic behavior at the actual eigenstate localization transition is not resolved in our finite numerics. These data are discussed in the context of a universal form for the growing operator shape and substantiated with a simple phenomenological model of rare regions.


Journal Details

This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 165902


DeepDyve research library

PubMed Articles [13864 Associated PubMed Articles listed on BioPortfolio]

Emergent Glassy Dynamics in a Quantum Dimer Model.

We consider the quench dynamics of a two-dimensional quantum dimer model and determine the role of its kinematic constraints. We interpret the nonequilibrium dynamics in terms of the underlying equili...

Reversible Quantum Information Spreading in Many-Body Systems near Criticality.

Quantum chaotic interacting N-particle systems are assumed to show fast and irreversible spreading of quantum information on short (Ehrenfest) time scales ∼logN. Here, we show that, near criticality...

Quantum Paraelastic Two-Dimensional Materials.

We study the elastic energy landscape of two-dimensional tin oxide (SnO) monolayers and demonstrate a transition temperature of T_{c}=8.5±1.8  K using ab initio molecular dynamics (MD) that is c...

Benefits of Weak Disorder in One-Dimensional Topological Superconductors.

Majorana bound states are zero-energy modes localized at the ends of a one-dimensional (1D) topological superconductor. Introducing disorder usually increases the Majorana localization length, until e...

Tomonaga-Luttinger Liquid Spin Dynamics in the Quasi-One-Dimensional Ising-Like Antiferromagnet BaCo_{2}V_{2}O_{8}.

Combining inelastic neutron scattering and numerical simulations, we study the quasi-one-dimensional Ising anisotropic quantum antiferromagnet BaCo_{2}V_{2}O_{8} in a longitudinal magnetic field. This...

Clinical Trials [2897 Associated Clinical Trials listed on BioPortfolio]

Personalized Quantum Sonotherapy in Regional Anesthesia

The objetive of the study is to evaluate the effect of personalized quantum sonotherapy on the level of anxiety and pain in outpatients schedule for orthopedic surgery under regional anest...

Intramedullary Fixation of Humerus Fractures Without Intramedullary Reaming

The purpose of the study is to evaluate the safety and efficacy of the composite Nail - the Quantum interlocking intramedullary nailing system in the reduction of humeral fractures.

Transition to Adult Care in Type 1 Diabetes

Successful transition to an adult diabetes clinic is an essential part of both clinical and psychosocial care for emerging adults with type 1 diabetes (T1D). Pediatric patients are general...

Preoperative Stereoscopic Localization Versus Methylene Blue Localization in GGO Wedge Resection

This study evaluates the feasibility,accuracy and safety of Preoperative Stereoscopic Localization Versus Methylene Blue Localization in GGO Wedge Resection. In the first stage,partici...

Transition of Diabetes Care From Pediatric to Adult Healthcare Providers.

A dedicated pre-transition class, as proposed in this study, could help facilitate a smooth transition between pediatric and adult diabetes care. The innovation in this study is that these...

Medical and Biotech [MESH] Definitions

Regulatory signaling systems that control the progression of the CELL CYCLE through the G1 PHASE and allow transition to S PHASE when the cells are ready to undergo DNA REPLICATION. DNA DAMAGE, or the deficiencies in specific cellular components or nutrients may cause the cells to halt before progressing through G1 phase.

A cyclin subtype that is transported into the CELL NUCLEUS at the end of the G2 PHASE. It stimulates the G2/M phase transition by activating CDC2 PROTEIN KINASE.

Members of the src-family tyrosine kinases that are activated during the transition from G2 PHASE to M PHASE of the CELL CYCLE. It is highly homologous to PROTO-ONCOGENE PROTEIN PP60(C-SRC).

The study of systems which respond disproportionately (nonlinearly) to initial conditions or perturbing stimuli. Nonlinear systems may exhibit "chaos" which is classically characterized as sensitive dependence on initial conditions. Chaotic systems, while distinguished from more ordered periodic systems, are not random. When their behavior over time is appropriately displayed (in "phase space"), constraints are evident which are described by "strange attractors". Phase space representations of chaotic systems, or strange attractors, usually reveal fractal (FRACTALS) self-similarity across time scales. Natural, including biological, systems often display nonlinear dynamics and chaos.

A prodromal phase of infection with the human immunodeficiency virus (HIV). Laboratory criteria separating AIDS-related complex (ARC) from AIDS include elevated or hyperactive B-cell humoral immune responses, compared to depressed or normal antibody reactivity in AIDS; follicular or mixed hyperplasia in ARC lymph nodes, leading to lymphocyte degeneration and depletion more typical of AIDS; evolving succession of histopathological lesions such as localization of Kaposi's sarcoma, signaling the transition to the full-blown AIDS.

Quick Search

DeepDyve research library

Searches Linking to this Article