Zobrazeno 1 - 10
of 1 099
pro vyhledávání: '"wave function ansatz"'
Autor:
Chuiko, Valerii, Ayers, Paul W.
Direct approaches to the quantum many-body problem suffer from the so-called "curse of dimensionality": the number of parameters needed to fully specify the exact wavefunction grows exponentially with increasing system size. This motivates the develo
Externí odkaz:
http://arxiv.org/abs/2304.10484
Autor:
Wilson, Max, Moroni, Saverio, Holzmann, Markus, Gao, Nicholas, Wudarski, Filip, Vegge, Tejs, Bhowmik, Arghya
Publikováno v:
Phys. Rev. B 107, 235139 (2023)
We design a neural network Ansatz for variationally finding the ground-state wave function of the Homogeneous Electron Gas, a fundamental model in the physics of extended systems of interacting fermions. We study the spin-polarised and paramagnetic p
Externí odkaz:
http://arxiv.org/abs/2202.04622
Autor:
Das, Sumanta, Zhai, Liang, Čepulskovskis, Mantas, Javadi, Alisa, Mahmoodian, Sahand, Lodahl, Peter, Sørensen, Anders S.
We develop a formalism based on a time-dependent wave-function ansatz to study correlations of photons emitted from a collection of two-level quantum emitters. We show how to simulate the system dynamics and evaluate the intensity of the scattered ph
Externí odkaz:
http://arxiv.org/abs/1912.08303
Autor:
Blunt, N. S., Neuscamman, Eric
We present a simple and efficient wave function ansatz for the treatment of excited charge-transfer states in real-space quantum Monte Carlo methods. Using the recently-introduced variation-after-response method [J. Chem. Phys. 145, 081103 (2016)], t
Externí odkaz:
http://arxiv.org/abs/1707.09439
Akademický článek
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Publikováno v:
J. Chem. Theory Comput. 9 (10), 4332-4350 (2013)
Quantum Monte Carlo methods are accurate and promising many body techniques for electronic structure calculations which, in the last years, are encountering a growing interest thanks to their favorable scaling with the system size and their efficient
Externí odkaz:
http://arxiv.org/abs/1309.0427
Publikováno v:
New J. Phys. 12 (2010) 103008
We present a new class of tensor network states that are specifically designed to capture the electron correlation of a molecule of arbitrary structure. In this ansatz, the electronic wave function is represented by a Complete-Graph Tensor Network (C
Externí odkaz:
http://arxiv.org/abs/1004.5303
Autor:
Ikhdair, Sameer M., Sever, Ramazan
Publikováno v:
Cent. Eur. J. Phys. 6, 697(2008)
Making an ansatz to the wave function, the exact solutions of the $D$% -dimensional radial Schrodinger equation with some molecular potentials like pseudoharmonic and modified Kratzer potentials are obtained. The restriction on the parameters of the
Externí odkaz:
http://arxiv.org/abs/quant-ph/0702052
Autor:
Ikhdair, Sameer, Sever, Ramazan
Publikováno v:
Central European Journal of Physics; 20240101, Issue: Preprints p1-7, 7p
Autor:
Lasse Kragh Sørensen
Publikováno v:
Molecular Physics. 120
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7475175f7fc7f95c3436bfbf79a3645
https://doi.org/10.1080/00268976.2022.2049385
https://doi.org/10.1080/00268976.2022.2049385