Results 21 to 30 of about 7,314,597 (340)
Quantum revival patterns from classical phase-space trajectories [PDF]
, 2019 A general semiclassical method in phase space based on the final value representation of the Wigner function is considered that bypasses caustics and the need to root-search for classical trajectories.
de Almeida, Alfredo M. Ozorio +3 more
core +2 more sources
A phase trajectories optimization method for CPM signal based on Pan-function model
EURASIP Journal on Advances in Signal Processing, 2016 The continuous phase modulation (CPM) signal has the characteristics of continuous phase, excellent spectral properties, less out-band radiation, and constant envelope. Thus, CPM technology is widely used in communication systems.
Wei Xue +3 more
semanticscholar +1 more source
Limiting phase trajectories and the origin of energy localization in nonlinear oscillatory chains. [PDF]
Physical review. E, Statistical, nonlinear, and soft matter physics, 2010 We demonstrate that the modulation instability of the zone-boundary mode in a finite (periodic) Fermi-Pasta-Ulam chain is the necessary but not sufficient condition for the efficient energy transfer by localized excitations.
L. Manevitch, V. Smirnov
semanticscholar +1 more source
Effective Theory for the Measurement-Induced Phase Transition of Dirac Fermions [PDF]
Physical Review X, 2021 A wave function exposed to measurements undergoes pure state dynamics, with deterministic unitary and probabilistic measurement induced state updates, defining a quantum trajectory.
M. Buchhold +3 more
semanticscholar +1 more source
Новые технологии, 2019 The most actively developing area of the Russian economy is insurance. 213 insurance companies practicing in Russia have permission to provide insurance services for 2019.
K. A. Kovaleva, I. M. Yakhontova
doaj +1 more source
The Classical Action as a Tool to Visualise the Phase Space of Hamiltonian Systems
Dynamics, 2023 In this paper, we analyse the classical action as a tool to reveal the phase space structure of Hamiltonian systems simply and intuitively. We construct a scalar field using the values of the action along the trajectories to analyse the phase space.
Francisco Gonzalez Montoya
doaj +1 more source
The existence of chaotic regimes of the fractional analogue of the Duffing-type oscillator
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019 In this paper, we study the chaotic regimes of the fractional Duffing oscillator. To do this, using the Wolf algorithm with Gram-Schmidt orthogonalization, we calculated the spectra of maximum Lyapunov exponents depending on the values of the control ...
Roman Ivanovich Parovik
doaj +1 more source
Cross Entropy Benchmark for Measurement-Induced Phase Transitions. [PDF]
Physical Review Letters, 2022 We investigate prospects of employing the linear cross entropy to experimentally access measurement-induced phase transitions without requiring any postselection of quantum trajectories.
Yaodong Li +4 more
semanticscholar +1 more source
AI Poincaré: Machine Learning Conservation Laws from Trajectories [PDF]
Physical Review Letters, 2020 We present AI Poincaré, a machine learning algorithm for autodiscovering conserved quantities using trajectory data from unknown dynamical systems. We test it on five Hamiltonian systems, including the gravitational three-body problem, and find that it ...
Ziming Liu, Max Tegmark
semanticscholar +1 more source
Accelerating dual cardiac phase images using undersampled radial phase encoding trajectories [PDF]
Magnetic Resonance Imaging, 2016 A three-dimensional dual-cardiac-phase (3D-DCP) scan has been proposed to acquire two data sets of the whole heart and great vessels during the end-diastolic and end-systolic cardiac phases in a single free-breathing scan. This method has shown accurate assessment of cardiac anatomy and function but is limited by long acquisition times.
Karis Letelier +6 more
openaire +5 more sources