Results 51 to 60 of about 496,311 (193)
Corrections to universal Rényi entropy in quasiparticle excited states of quantum chains [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2020 We investigate the energy eigenstate Rényi entropy of generic bipartition in the fermionic, bosonic, and spin-1/2 XY chains. When the gap of the theory is large or all the momenta of the excited quasiparticles are large, the Rényi entropy takes a ...
Jiaju Zhang, M. Rajabpour
semanticscholar +1 more source
Journal of High Energy Physics, 2023 In this work, we investigate the time evolution of the pseudo-(Rényi) entropy after local primary operator quenches in 2D CFTs with T T ¯ / J T ¯ $$ T\overline{T}/J\overline{T} $$ -deformation. Using perturbation theory, we analyze the corrections to the
Song He +3 more
doaj +1 more source
Exact solution of long-range stabilizer Rényi entropy in the dual-unitary XXZ model [PDF]
Journal of Physics A: Mathematical and TheoreticalQuantum systems can not be efficiently simulated classically due to the presence of entanglement and nonstabilizerness, also known as quantum magic. Here we study the generation of magic under evolution by a quantum circuit.
Jordi Arnau Montañà López, Pavel Kos
semanticscholar +1 more source
Rényi entropy singularities as signatures of topological criticality in coupled photon-fermion systems [PDF]
Physical Review Research, 2020 We establish the relation between topological phase (TP) transitions and quantum entropy singularities in a Kitaev chain embedded in a cavity. Even though both the von Neumann and Renyi entanglement entropies between light and matter sub-systems display ...
F. P. M. M'endez-C'ordoba +5 more
semanticscholar +1 more source
Diagnosis of COVID-19 by Wavelet Renyi Entropy and Three-Segment Biogeography-Based Optimization
International Journal of Computational Intelligence Systems, 2020 Corona virus disease 2019 (COVID-19) is an acute infectious pneumonia and its pathogen is novel and was not previously found in humans. As a diagnostic method for COVID-19, chest computed tomography (CT)is more sensitive than reverse transcription ...
Shui-hua Wang +4 more
semanticscholar +1 more source
Entanglement and Rényi entropy of multiple intervals in TT¯ -deformed CFT and holography [PDF]
Physical Review D, 2019 We study the entanglement entropy (EE) and the Renyi entropy (RE) of multiple intervals in two-dimensional TT¯- deformed conformal field theory (CFT) at a finite temperature by field theoretic and holographic methods.
Hyun-Sik Jeong +2 more
semanticscholar +1 more source
Minimum Rényi entropy portfolios
, 2021 Accounting for the non-normality of asset returns remains one of the main challenges in portfolio optimization. In this paper, we tackle this problem by assessing the risk of the portfolio through the "amount of randomness" conveyed by its returns.
Vrins, Frédéric, Lassance, Nathan
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Smooth Rényi Entropy of Ergodic Quantum Information Sources [PDF]
, 2007 We investigate the recently introduced notion of smooth Rényi entropy for the case of ergodic information sources, thereby generalizing previous work which concentrated mainly on i.i.d. information sources.
Berry Schoenmakers +12 more
core +5 more sources
Holographic Renyi entropy from quantum error correction [PDF]
Journal of High Energy Physics, 2018 We study Renyi entropies Sn in quantum error correcting codes and compare the answer to the cosmic brane prescription for computing S˜n≡n2∂nn−1nSn\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage ...
C. Akers, Pratik Rath
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Rényi Entropy Rate of Stationary Ergodic Processes
, 2023 — In this paper, we examine the Rényi entropy rate of stationary ergodic processes. For a special class of stationary ergodic processes, we prove that the Rényi entropy rate always exists and can be approximated by its defining sequence at most ...
Yonglong Li +7 more
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