Path integral molecular dynamics for bosons

B Hirshberg, V Rizzi… - Proceedings of the …, 2019 - National Acad Sciences
Trapped bosons exhibit fundamental physical phenomena and are at the core of emerging
quantum technologies. We present a method for simulating bosons using path integral …

[HTML][HTML] Quadratic scaling bosonic path integral molecular dynamics

YMY Feldman, B Hirshberg - The Journal of Chemical Physics, 2023 - pubs.aip.org
Bosonic exchange symmetry leads to fascinating quantum phenomena, from exciton
condensation in quantum materials to the superfluidity of liquid 4 He. Unfortunately, path …

Optical signatures of moiré trapped biexcitons

S Brem, E Malic - 2D Materials, 2024 - iopscience.iop.org
Atomically thin heterostructures formed by twisted transition metal dichalcogenides can be
used to create periodic moiré patterns. The emerging moiré potential can trap interlayer …

Machine learning one-dimensional spinless trapped fermionic systems with neural-network quantum states

JWT Keeble, M Drissi, A Rojo-Francàs, B Juliá-Díaz… - Physical Review A, 2023 - APS
We compute the ground-state properties of fully polarized, trapped, one-dimensional
fermionic systems interacting through a Gaussian potential. We use an antisymmetric …

Quantum ground states from reinforcement learning

A Barr, W Gispen, A Lamacraft - Mathematical and Scientific …, 2020 - proceedings.mlr.press
Finding the ground state of a quantum mechanical system can be formulated as an optimal
control problem. In this formulation, the drift of the optimally controlled process is chosen to …

Direct diagonalization method for a few particles trapped in harmonic potentials

A Rojo-Francàs, F Isaule, B Juliá-Díaz - Physical Review A, 2022 - APS
We describe a procedure to systematically improve direct diagonalization results for few-
particle systems trapped in one-dimensional harmonic potentials interacting by contact …

Time-periodic quantum states of weakly interacting bosons in a harmonic trap

M De Clerck, O Evnin - Physics Letters A, 2020 - Elsevier
We consider quantum bosons with contact interactions at the Lowest Landau Level (LLL) of
a two-dimensional isotropic harmonic trap. At linear order in the coupling parameter g, we …

Path integral molecular dynamics simulations for Green's function in a system of identical bosons

Y Xiong, H Xiong - The Journal of Chemical Physics, 2022 - pubs.aip.org
Path integral molecular dynamics (PIMD) has been successfully applied to perform
simulations of large bosonic systems in a recent study [Hirshberg et al., Proc. Natl. Acad. Sci …

Path integral molecular dynamics for thermodynamics and Green's function of ultracold spinor bosons

Y Yu, S Liu, H Xiong, Y Xiong - The Journal of Chemical Physics, 2022 - pubs.aip.org
Most recently, the path integral molecular dynamics has been successfully used to consider
the thermodynamics of single-component identical bosons and fermions. In this work, the …

Analytical treatment of the interaction quench dynamics of two bosons in a two-dimensional harmonic trap

G Bougas, SI Mistakidis, P Schmelcher - Physical Review A, 2019 - APS
We investigate the quantum dynamics of two bosons, trapped in a two-dimensional
harmonic trap, upon quenching arbitrarily their interaction strength and thereby covering the …