Excitations in the quantum liquid 4He: A review
HR Glyde - Reports on Progress in Physics, 2017 - iopscience.iop.org
Progress made in measuring and interpreting the elementary excitations of superfluid and
normal liquid ${\hspace {0pt}}^ 4 {\rm He} $ in the past 25 years is reviewed. The goal is to …
normal liquid ${\hspace {0pt}}^ 4 {\rm He} $ in the past 25 years is reviewed. The goal is to …
Zero-point motion of liquid and solid hydrogen
We present an inelastic neutron scattering study of liquid and solid hydrogen carried out
using the wide Angular Range Chopper Spectrometer at Oak Ridge National Laboratory …
using the wide Angular Range Chopper Spectrometer at Oak Ridge National Laboratory …
The Momentum Distribution of Liquid
In this paper, we report a high-resolution neutron Compton scattering study of liquid^ 4 He 4
He under milli-Kelvin temperature control. To interpret the scattering data, we performed …
He under milli-Kelvin temperature control. To interpret the scattering data, we performed …
Properties of fermionic systems with the path-integral ground state method
S Ujevic, V Zampronio, BR de Abreu, SA Vitiello - SciPost Physics Core, 2023 - scipost.org
We investigate strongly correlated many-body systems composed of bosons and fermions
with a fully quantum treatment using the path-integral ground state method, PIGS. To …
with a fully quantum treatment using the path-integral ground state method, PIGS. To …
Vibrational modes and quantum zero-point energy of hydrogen in ZrH0. 0155 and ZrH2
We report on an inelastic neutron scattering study of the proton dynamics in ZrH 0.0155 and
ε-ZrH 2. In particular, we present measurements of the incoherent dynamic structure factor …
ε-ZrH 2. In particular, we present measurements of the incoherent dynamic structure factor …
Momentum distribution of He-3 in one dimension
M Boninsegni - arxiv preprint arxiv:2502.00389, 2025 - arxiv.org
The one-particle density matrix of a one-dimensional system of fermions featuring a hard-
core repulsive interaction at short distances can be computed (numerically) exactly by …
core repulsive interaction at short distances can be computed (numerically) exactly by …
Kinetic energy of fermionic systems
V Zampronio, SA Vitiello - Physical Review B, 2019 - APS
The kinetic energy of a system made from normal He 3 liquid is estimated and shows that
progress has been made in resolving a long-standing disagreement with most experimental …
progress has been made in resolving a long-standing disagreement with most experimental …
[PDF][PDF] Ground state properties of fermionic systems with the Density Matrix Projection method
S Ujevic, V Zampronio, BR de Abreu, SA Vitiello - gas], 2022 - researchgate.net
We investigate several quantum many-body systems using the density matrix projection
method. We consider a detailed proof of concept with the harmonic oscillator and apply the …
method. We consider a detailed proof of concept with the harmonic oscillator and apply the …
Microscopic self dynamics in liquids: Connections between the Gaussian approximation and the asymptotic impulsive regime
D Colognesi - Physica B: Condensed Matter, 2017 - Elsevier
In this paper we have studied the Gaussian approximation and its violation when applied to
quantum fluids. Deviations from the Gaussian approximation, the so-called non-Gaussian …
quantum fluids. Deviations from the Gaussian approximation, the so-called non-Gaussian …
Excitations in Quantum Liquids.
HR Glyde - Reports on Progress in physics. Physical Society …, 2017 - europepmc.org
Progress made in measuring and interpreting the elementary excitations of superfluid and
normal liquid\4he in the past 25 years is reviewed. The goal is to bring up to date the data …
normal liquid\4he in the past 25 years is reviewed. The goal is to bring up to date the data …