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We present celmech, an open-source Python package designed to facilitate a wide variety of celestial mechanics calculations. The package allows users to formulate and integrate equations of motion incorporating user-specified terms from the…

地球与行星天体物理 · 物理学 2022-10-26 Sam Hadden , Daniel Tamayo

A flexible scheme for decomposing the vibrational density of states in terms of pair vibrational density of states is presented. This scheme provides the linkage between the site vibrational density of states and pair vibrational density of…

原子与分子团簇 · 物理学 2009-11-10 Lei Liu , C. S. Jayanthi , Shi-Yu Wu

The chemistry of an astrophysical environment is closely coupled to its dynamics, the latter often found to be complex. Hence, to properly model these environments a 3D context is necessary. However, solving chemical kinetics within a 3D…

计算物理 · 物理学 2024-05-07 S. Maes , F. De Ceuster , M. Van de Sande , L. Decin

We present a cross-language C++/Python program for simulations of quantum mechanical systems with the use of Quantum Monte Carlo (QMC) methods. We describe a system for which to apply QMC, the algorithms of variational Monte Carlo and…

计算物理 · 物理学 2009-11-13 J. K. Nilsen

Natural microbial communities contain hundreds to thousands of interacting species. For this reason, computational simulations are playing an increasingly important role in microbial ecology. In this manuscript, we present a new…

种群与进化 · 定量生物学 2020-07-01 Robert Marsland , Wenping Cui , Joshua Goldford , Pankaj Mehta

Almost all applications stop scaling at some point; those that don't are seldom performant when considering time to solution on anything but aspirational/unicorn resources. Recognizing these tradeoffs as well as greater user functionality…

分布式、并行与集群计算 · 计算机科学 2021-06-28 Stephen Hudson , Jeffrey Larson , John-Luke Navarro , Stefan M. Wild

We provide a pedagogical introduction to numerical linked-cluster expansions (NLCEs). We sketch the algorithm for generic Hamiltonians that only connect nearest-neighbor sites in a finite cluster with open boundary conditions. We then…

统计力学 · 物理学 2013-03-13 Baoming Tang , Ehsan Khatami , Marcos Rigol

The extension of the spin coherence times is a crucial issue for quantum information and quantum sensing. In solid state systems, suppressing noises with various techniques have been demonstrated. On the other hand, an electrical control…

量子物理 · 物理学 2020-10-21 S. Kobayashi , Y. Matsuzaki , H. Morishita , S. Miwa , Y. Suzuki , M. Fujiwara , N. Mizuochi

Current and near term quantum computers (i.e. NISQ devices) are limited in their computational power in part due to qubit decoherence. Here we seek to take advantage of qubit decoherence as a resource in simulating the behavior of real…

Python is a popular programming language known for its flexibility, usability, readability, and focus on developer productivity. The quantum software community has adopted Python on a number of large-scale efforts due to these…

量子物理 · 物理学 2021-05-12 Thien Nguyen , Alexander J. McCaskey

Here we report the increase of the coherence time T$_2$ of a single electron spin at room temperature by using dynamical decoupling. We show that the Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence can prolong the T$_2$ of a single…

Mechanistic models are essential tools across ecology, epidemiology, and the life sciences, but parameter inference remains challenging when likelihood functions are intractable. Approximate Bayesian Computation with Sequential Monte Carlo…

种群与进化 · 定量生物学 2025-11-27 Mario Castro

The absorption and emission of light by exoplanet atmospheres encode details of atmospheric composition, temperature, and dynamics. Fundamentally, simulating these processes requires detailed knowledge of the opacity of gases within an…

天体物理仪器与方法 · 物理学 2024-08-07 Arjun B. Savel , Megan Bedell , Eliza M. -R. Kempton

We present the benchmark of the polynomial expansion Monte Carlo method to a Kondo lattice model with classical localized spins on a geometrically frustrated lattice. The method enables to reduce the calculation amount by using the…

强关联电子 · 物理学 2014-01-24 Hiroaki Ishizuka , Masafumi Udagawa , Yukitoshi Motome

A Python package for post-processing of plane two-dimensional data from computational fluid dynamics simulations is presented. The package, called turbulucid, provides means for scripted, reproducible analysis of large simulation campaigns…

计算工程、金融与科学 · 计算机科学 2018-07-26 Timofey Mukha

PySINDy is a Python package for the discovery of governing dynamical systems models from data. In particular, PySINDy provides tools for applying the sparse identification of nonlinear dynamics (SINDy) (Brunton et al. 2016) approach to…

ergodicity is an open-source Python library for computational work on stochastic dynamics, with particular emphasis on non-ergodicity, time-average behavior, heavy-tailed processes, and decision making under uncertainty. The package brings…

统计计算 · 统计学 2026-05-14 Ihor Kendiukhov

We present PyCARL, a PyNN-based common Python programming interface for hardware-software co-simulation of spiking neural network (SNN). Through PyCARL, we make the following two key contributions. First, we provide an interface of PyNN to…

神经与进化计算 · 计算机科学 2020-05-13 Adarsha Balaji , Prathyusha Adiraju , Hirak J. Kashyap , Anup Das , Jeffrey L. Krichmar , Nikil D. Dutt , Francky Catthoor

PymePix is a new Python 3 library that provides control and acquisition for the Timepix3-SPIDR hardware. The rich set of data-structures and intuitive routines reduces time and coding effort to quickly configure, acquire, and visualize data…

Molecular spin qubits are promising candidates for quantum technologies, but their performance is limited by decoherence arising from diverse mechanisms. The complexity of the environment makes it challenging to identify the main source of…