Results 31 to 40 of about 66,763 (310)
Dynamical signatures of symmetry protected topology following symmetry breaking
Physical Review Research, 2021 We investigate topological signatures in the short-time nonequilibrium dynamics of symmetry protected topological (SPT) systems starting from initial states which break a protecting symmetry.
Jacob A. Marks +2 more
doaj +1 more source
Topological heterogeneity and evaporation dynamics of irregular water droplets
Scientific Reports, 2021 Water droplets sitting between wires are ubiquitous in nature and industry, often showing irregular (non-spherical) droplet shapes. To understand their topological singularity and evaporation mechanism, measuring volume changes of irregular water ...
Yeseul Kim +3 more
doaj +1 more source
Modeling internet topology dynamics [PDF]
ACM SIGCOMM Computer Communication Review, 2008 Despite the large number of papers on network topology modeling and inference, there still exists ambiguity about the real nature of the Internet AS and router level topology. While recent findings have illustrated the inaccuracies in maps inferred from BGP peering and traceroute measurements, existing topology models still produce static topologies ...
Hamed Haddadi 0001 +4 more
openaire +2 more sources
Braiding Dynamics in Active Nematics
Frontiers in Physics, 2022 In active matter systems, energy consumed at the small scale by individual agents gives rise to emergent flows at large scales. For 2D active nematic microtubule (ANMT) systems, these flows are largely characterized by the dynamics of mobile defects in ...
Spencer Ambrose Smith, Ruozhen Gong
doaj +1 more source
Correlations and screening of topological charges in Gaussian random fields [PDF]
, 2003 Two-point topological charge correlation functions of several types of geometric singularity in Gaussian random fields are calculated explicitly, using a general scheme: zeros of n-dimensional random vectors, signed by the sign of their Jacobian ...
Dennis, MR +2 more
core +1 more source
Fixed Points and Dynamic Topological Phenomena in a Parity-Time-Symmetric Quantum Quench
iScience, 2019 Summary: We identify dynamic topological phenomena such as dynamic Chern numbers and dynamic quantum phase transitions in quantum quenches of the non-Hermitian Su-Schrieffer-Heeger Hamiltonian with parity-time (PT) symmetry.
Xingze Qiu +4 more
doaj +1 more source
Topological origin of quantized transport in non-Hermitian Floquet chains
Physical Review Research, 2020 We show that non-Hermiticity enables topological phases with unidirectional transport in one-dimensional Floquet chains. The topological signatures of these phases are noncontractible loops in the spectrum of the Floquet propagator that are separated by ...
Bastian Höckendorf +2 more
doaj +1 more source
Unified characterization for higher-order topological phase transitions
Physical Review Research, 2023 Higher-order topological phase transitions (HOTPTs) are associated with closing either the bulk energy gap (type-I) or boundary energy gap (type-II) without changing symmetry, and conventionally, both transitions are captured in real space and ...
Wei Jia +4 more
doaj +1 more source
Genericity in topological dynamics [PDF]
Ergodic Theory and Dynamical Systems, 2008 AbstractWe study genericity of dynamical properties in the space of homeomorphisms of the Cantor set and in the space of subshifts of a suitably large shift space. These rather different settings are related by a Glasner–King type correspondence: genericity in one is equivalent to genericity in the other.
openaire +2 more sources
Topology Dynamics in a P2PTV Network [PDF]
, 2009 In recent years, a number of commercial peer-to-peer TV (P2PTV) applications have been launched. Yet, their mechanisms and characteristics are unknown. In this paper, we study SopCast, a typical proprietary P2PTV system. Treating SopCast as a black box, we perform a set of experiments that are suitable to analyze SopCast in depth.
Tang, S. (author) +4 more
openaire +2 more sources