Anomalies in Time-Ordered Products and Applications to the BV–BRST Formulation of Quantum Gauge Theories
Sign Up to like & getrecommendations! Published in 2019 at "Communications in Mathematical Physics"
DOI: 10.1007/s00220-019-03558-6
Abstract: We show that every (graded) derivation on the algebra of free quantum fields and their Wick powers in curved spacetimes gives rise to a set of anomalous Ward identities for time-ordered products, with an explicit… read more here.
Keywords: quantum; gauge; time ordered; ordered products ... See more keywords
Police Legitimacy and Procedural Justice Among Young Brazilian Adolescents: A Cross-Sectional and Time-Ordered Analysis
Sign Up to like & getrecommendations! Published in 2021 at "British Journal of Criminology"
DOI: 10.1093/bjc/azab004
Abstract: The legal socialization framework expounds individual attitudes towards authority. The current study tested whether the attitudes of Brazilian adolescents towards social authorities (parents and teachers) explain later attitudes towards legal authority (the police). Data were… read more here.
Keywords: authority; attitudes towards; time ordered; brazilian adolescents ... See more keywords
Out-of-time-ordered correlation functions in open systems: A Feynman-Vernon influence functional approach
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.062106
Abstract: Recent theoretical and experimental studies have shown the significance of quantum information scrambling (i.e., the spread of quantum information over a system's degrees of freedom) for problems e ... read more here.
Keywords: time ordered; systems feynman; open systems; ordered correlation ... See more keywords
Out-of-time-ordered correlators in a quantum Ising chain
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.144304
Abstract: Out-of-time-ordered correlators (OTOC) have been proposed to characterize quantum chaos in generic systems. However, they can also show interesting behavior in integrable models, resembling the OTOC in chaotic systems in some aspects. Here we study… read more here.
Keywords: chain; quantum ising; time ordered; time ... See more keywords
Finite-time Lyapunov fluctuations and the upper bound of classical and quantum out-of-time-ordered expansion rate exponents.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.l062201
Abstract: This Letter demonstrates for chaotic maps [logistic, classical, and quantum standard maps (SMs)] that the exponential growth rate (Λ) of the out-of-time-ordered four-point correlator is equal to the classical Lyapunov exponent (λ) plus fluctuations (Δ^{(fluc)})… read more here.
Keywords: time ordered; time; finite time; time lyapunov ... See more keywords
Out-of-Time-Ordered Density Correlators in Luttinger Liquids.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.026802
Abstract: Information scrambling and the butterfly effect in chaotic quantum systems can be diagnosed by out-of-time-ordered (OTO) commutators through an exponential growth and large late time value. We show that the latter feature shows up in… read more here.
Keywords: ordered density; density correlators; time ordered; time ... See more keywords
Recovery of Damaged Information and the Out-of-Time-Ordered Correlators.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.125.040605
Abstract: The evolution with a complex Hamiltonian generally leads to information scrambling. A time-reversed dynamics unwinds this scrambling and thus leads to the original information recovery. We show that if the scrambled information is, in addition,… read more here.
Keywords: time; time ordered; recovery damaged; damaged information ... See more keywords
Out-of-Time-Ordered Crystals and Fragmentation.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.100601
Abstract: Is a spontaneous perpetual reversal of the arrow of time possible? The out-of-time-ordered correlator (OTOC) is a standard measure of irreversibility, quantum scrambling, and the arrow of time. The question may be thus formulated more… read more here.
Keywords: time ordered; time; fragmentation; ordered crystals ... See more keywords
A Time-Ordered Aggregation Model-Based Centrality Metric for Mobile Social Networks
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DOI: 10.1109/access.2018.2831247
Abstract: How to measure the centrality of nodes is a significant problem in mobile social networks (MSNs). Current studies in MSNs mainly focus on measuring the centrality of nodes in a certain time interval based on… read more here.
Keywords: ordered aggregation; time ordered; time; centrality ... See more keywords
How to evaluate sentiment classifiers for Twitter time-ordered data?
Sign Up to like & getrecommendations! Published in 2018 at "PLoS ONE"
DOI: 10.1371/journal.pone.0194317
Abstract: Social media are becoming an increasingly important source of information about the public mood regarding issues such as elections, Brexit, stock market, etc. In this paper we focus on sentiment classification of Twitter data. Construction… read more here.
Keywords: validation; cross validation; ordered data; time ordered ... See more keywords