Found 868 results, sorted by relevancy. Show newest relevant.Update me on new preprints

Data-Driven Many-Body Models for Molecular Fluids: CO2/H2O Mixtures as a Case Study

By providing a physically correct description of many-body effects at both short and long ranges, the MB-nrg PEFs are shown to quantitatively represent the global potential energy surfaces of the CO2–CO2 and CO2–H2O dimers and the energetics of small clusters as well as to correctly reproduce various properties in both... Expand abstract.
7 days ago
10/10 relevant
chemRxiv

Neural-Network Approach to Dissipative Quantum Many-Body Dynamics

We represent the mixed many-body quantum states with neural networks in the form of restricted Boltzmann machines and derive a variational Monte-Carlo algorithm for their time evolution and stationary states. Expand abstract.
256 days ago
10/10 relevant
arXiv

Time Global Finite-Energy Weak Solutions to the Many-Body Maxwell-Pauli Equations

We study the quantum mechanical many-body problem of $N$ nonrelativistic electrons interacting with their self-generated classical electromagnetic field and $K$ static nuclei. Expand abstract.
256 days ago
10/10 relevant
arXiv

Deep Learning-Enhanced Variational Monte Carlo Method for Quantum Many-Body Physics

Artificial neural networks have been successfully incorporated into variational Monte Carlo method (VMC) to study quantum many-body systems. Expand abstract.
201 days ago
10/10 relevant
arXiv

NetKet: A Machine Learning Toolkit for Many-Body Quantum Systems

Our aim is to provide a common platform for open research and to stimulate the collaborative development of computational methods at the interface of machine learning and many-body physics. Expand abstract.
258 days ago
10/10 relevant
arXiv

Non-Hermitian Many-Body Localization

Moreover, the real-complex transition is shown to be absent in non-Hermitian many-body systems with gain and/or loss that breaks time-reversal symmetry, even though the many-body localization transition still persists. Expand abstract.
256 days ago
10/10 relevant
arXiv

Scale Invariant Entanglement Negativity at the Many-Body Localization Transition

The observed scale invariance of the quantum correlations in a microscopic model opens the direction to probe the fractal structure in critical eigenstates using tensor network techniques and provide constraints on the theory of the many-body localization transition. Expand abstract.
127 days ago
10/10 relevant
arXiv

Variational autoencoder reconstruction of complex many-body physics

We show with the paradigmatic quantum Ising model in a transverse magnetic field, that the ground-state physics, such as, e.g., magnetization and other mean values of observables, of a whole class of quantum many-body systems can be reconstructed by using VAE learning of tomographic data, for different parameters of... Expand abstract.
64 days ago
10/10 relevant
arXiv

Coherence, entanglement and quantumness in closed and open systems with conserved charge, with an application to many-body localisation

We illustrate our results on the example of a many-body localized system, also in the presence of dephasing. Expand abstract.
256 days ago
10/10 relevant
arXiv

Many-body quantum dynamics of an asymmetric bosonic Josephson junction

The phenomenon is robust despite the asymmetry of the junction and admits a macroscopically-large fragmented condensate characterized by a diverging many-body position variance. Expand abstract.
429 days ago
10/10 relevant
arXiv