Promoting global stability in data-driven models of quadratic nonlinear dynamics

dynamicslab/pysindy 5 May 2021

Second, we illustrate how to modify the objective function in machine learning algorithms to promote globally stable models, with implications for the modeling of fluid and plasma flows.

Fluid Dynamics Computational Physics Plasma Physics

496
0.13 stars / hour

The agglomeration and dispersion dichotomy of human settlements on Earth

denadai2/precise-mapping-human-settlements 11 Jun 2020

To explain the observed spatial patterns, we also propose a model that combines two agglomeration forces and simulates human settlements' historical growth.

Physics and Society

20
0.05 stars / hour

Investigating Quantum Approximate Optimization Algorithms under Bang-bang Protocols

google-research/google-research 27 May 2020

The quantum approximate optimization algorithm (QAOA) is widely seen as a possible usage of noisy intermediate-scale quantum (NISQ) devices.

Quantum Physics

20,721
0.05 stars / hour

A comprehensive and fair comparison of two neural operators (with practical extensions) based on FAIR data

lululxvi/deepxde 10 Nov 2021

Neural operators can learn nonlinear mappings between function spaces and offer a new simulation paradigm for real-time prediction of complex dynamics for realistic diverse applications as well as for system identification in science and engineering.

Computational Physics

750
0.04 stars / hour

Machine Learning and Quantum Devices

FlorianMarquardt/machine-learning-for-physicists 5 Jan 2021

These brief lecture notes cover the basics of neural networks and deep learning as well as their applications in the quantum domain, for physicists without prior knowledge.

Quantum Physics

150
0.03 stars / hour

Visualizing and Interpreting Unsupervised Solar Wind Classifications

JustGlowing/minisom 28 Apr 2020

The manual and semi-automatic classification of millions of hours of solar wind data from multiple missions can be replaced by automatic algorithms that can discover, in mountains of multi-dimensional data, the real differences in the solar wind properties.

Space Physics Solar and Stellar Astrophysics

972
0.03 stars / hour

Build your own tensor network library: DMRjulia I. Basic library for the density matrix renormalization group

bakerte/DMRJtensor.jl 7 Sep 2021

The code can be used as an educational tool to understand how tensor network computations are done in the context of entanglement renormalization or as a template for other codes in low level languages.

Quantum Physics

17
0.03 stars / hour

Optimal synthesis into fixed XX interactions

Qiskit/qiskit-terra 3 Nov 2021

We describe an optimal procedure, as well as its efficient software implementation, for exact and approximate synthesis of two-qubit unitary operations into any prescribed discrete family of XX-type interactions and local gates.

Quantum Physics Symplectic Geometry 81Q99, 53D45

3,171
0.02 stars / hour

PyPSA: Python for Power System Analysis

PyPSA/PyPSA 31 Jul 2017

In this paper the basic functionality of PyPSA is described, including the formulation of the full power flow equations and the multi-period optimisation of operation and investment with linear power flow equations.

Physics and Society

580
0.02 stars / hour

OpenQASM 3: A broader and deeper quantum assembly language

IBM/qiskit-openqasm 30 Apr 2021

In principle, any quantum computation could be described using OpenQASM 2, but there is a need to describe a broader set of quantum circuits beyond the language of qubits and gates.

Quantum Physics

730
0.02 stars / hour