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Luttinger parameter of quasi-one-dimensional para-H2

Autor: Ferre, G, Gordillo, M. C., Boronat, J.

Publikováno v: Phys. Rev. B 95, 064502 (2017)

We have studied the ground-state properties of para-hydrogen in one dimension and in quasi-one-dimensional configurations using the path integral ground state Monte Carlo method. This method produces zero-temperature exact results for a given interac

Externí odkaz: http://arxiv.org/abs/1702.02335

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Learning molecular energies using localized graph kernels

Autor: Ferré, G., Haut, T., Barros, K.

Publikováno v: The Journal of Chemical Physics, 146(11), 114107 (2017)

Recent machine learning methods make it possible to model potential energy of atomic configurations with chemical-level accuracy (as calculated from ab-initio calculations) and at speeds suitable for molecular dynam- ics simulation. Best performance

Externí odkaz: http://arxiv.org/abs/1612.00193

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Momentum distribution of liquid 4He across the normal-superfluid phase transition

Autor: Ferré, G., Rota, R., Boronat, J.

We have carried out a study of the momentum distribution and of the spectrum of elementary excitations of liquid $^4$He across the normal-superfluid transition temperature, using the path integral Monte Carlo method. Our results for the momentum dist

Externí odkaz: http://arxiv.org/abs/1607.08447

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Dynamic structure factor of liquid 4He across the normal-superfluid transition

Autor: Ferre, G., Boronat, J.

Publikováno v: Phys. Rev. B 93, 104510 (2016)

We have carried out a microscopic study of the dynamic structure factor of liquid $^4$He across the normal-superfluid transition temperature using the path integral Monte Carlo method. The ill-posed problem of the inverse Laplace transform, from the

Externí odkaz: http://arxiv.org/abs/1603.02811

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Phase diagram of a quantum Coulomb wire

Autor: Ferre, G., Astrakharchik, G. E., Boronat, J.

We report the quantum phase diagram of a one-dimensional Coulomb wire obtained using the path integral Monte Carlo (PIMC) method. The exact knowledge of the nodal points of this system permits us to find the energy in an exact way, solving the sign p

Externí odkaz: http://arxiv.org/abs/1507.05496

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