Results 21 to 30 of about 27,409 (168)
Versatile shaper-assisted discretization of energy–time entangled photons
New Journal of Physics, 2014 We demonstrate the capability to discretize the frequency spectrum of broadband energy–time entangled photons by means of a spatial light modulator to encode qudits in various bases.
B Bessire +3 more
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Symmetry, Integrability and Geometry: Methods and Applications, 2011 The original continuous-time "goldfish" dynamical system is characterized by two neat formulas, the first of which provides the $N$ Newtonian equations of motion of this dynamical system, while the second provides the solution of the corresponding initial-value problem.
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Discrete-time quantum mechanics [PDF]
Physical Review D, 1985 The finite-element (collocation) method enables us to construct discrete time-lattice quantum systems that accurately approximate continuum quantum systems. The discrete quantum systems so generated are fully consistent quantum-mechanical systems in their own right. This paper gives a comprehensive treatment of such quantum systems.
, Bender +4 more
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Hangkong gongcheng jinzhanWhen solving complex time-variant reliability analysis（TRA）problems，the traditional TRA methods have the problem of low solving efficiency. Based on the approximating most-probable-points trajectory （AMPPT）method，the efficient approximating the most ...
ZOU Nanzheng +5 more
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An Automated Unsupervised Discretization Method: A Novel Approach [PDF]
Vietnam Journal of Computer Science, 2020 In this paper, for the first time, a novel discretization scheme is proposed aiming at enabling scalability but also at least three other strong challenges.
Habiba Drias +2 more
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Dissipative Prethermal Discrete Time Crystal
Physical Review Letters, 2023 An ergodic system subjected to an external periodic drive will be generically heated to infinite temperature. However, if the applied frequency is larger than the typical energy scale of the local Hamiltonian, this heating stops during a prethermal period that extends exponentially with the frequency.
DinhDuy Vu, Sankar Das Sarma
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General Third-Order-Accuracy Formulas for Time Discretization Applied to Time-Varying Optimization
IEEE Access, 2020 Time discretization is an important part of time-varying problems solving that determines convergence, real-time performance and accuracy for solution models.
Hejun Xuan +4 more
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Time‐scale transformations of discrete time processes [PDF]
Journal of Time Series Analysis, 2003 Abstract. This paper investigates the effects of temporal aggregation when the aggregation frequency is variable and possibly stochastic. The results that we report include, as a particular case, the well‐known results on fixed‐interval aggregation, such as when monthly data are aggregated into quarters.
Oscar Jorda, Massimiliano Marcellino
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LDG schemes with second order implicit time discretization for a fractional sub-diffusion equation
Results in Applied Mathematics, 2019 In this paper, we propose new local discontinuous Galerkin (LDG) schemes for solving a time fractional sub-diffusion equation. The new LDG schemes is constructed rely on the splitting of time fractional derivative and space derivative.
Can Li, Xiaorui Sun, Fengqun Zhao
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Electronic Journal of Differential Equations, 2020 Recently, a time discretization of simultaneous abstract evolution equations applied to parabolic-hyperbolic phase-field systems has been studied. This article focuses on a time discretization of an abstract problem that has application to linearized
Shunsuke Kurima
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