Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Robert E. Zillich"'
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023245 (2021)
We investigate the effects of interaction for the stripe phase of a homogeneous one-dimensional Bose gas with laser-induced Raman spin-orbit coupling (SOC) and Zeeman splitting, for a wide range of densities. In order to account for quantum fluctuati
Externí odkaz:
https://doaj.org/article/4f2a87e54ae0471f9ea7023bf9fdf08b
Time-dependent variational Monte Carlo study of the dynamic response of bosons in an optical lattice
Publikováno v:
SciPost Physics, Vol 13, Iss 2, p 025 (2022)
We study the dynamics of a one-dimensional Bose gas at unit filling in both shallow and deep optical lattices and obtain the dynamic structure factor ${S(k,\omega)}$ by monitoring the linear response to a weak probe pulse. We introduce a new proce
Externí odkaz:
https://doaj.org/article/89a44901fed14deba838455a49fb49d3
Publikováno v:
Physical Review B. 102
We propose a novel type of quantum heat engine based on the ultrafast dynamical control of the magnetic properties of a nano-scale working body. The working principle relies on nonlinear phononics, an example for dynamical materials design. We descri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6a05e180818aba2c6dedac14bfa18ed
https://doi.org/10.1103/physrevb.102.125131
https://doi.org/10.1103/physrevb.102.125131
Publikováno v:
Physical Review A
We investigate the ground-state properties and excitations of Rydberg-dressed bosons in both three and two dimensions, using the hypernetted-chain Euler-Lagrange approximation, which accounts for correlations and thus goes beyond the mean field appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::163114c689c451c7279fa4a768ce3479
http://arxiv.org/abs/1905.01643
http://arxiv.org/abs/1905.01643
Publikováno v:
Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recent experiments confirmed that fluctuations beyond the mean-field approximation can lead to self-bound liquid droplets of ultra-dilute binary Bose mixtures. We proceed beyond the beyond-mean-field approximation, and study liquid Bose mixtures usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bb41f9a73c2238378f7faa148f9d256
http://arxiv.org/abs/1805.06200
http://arxiv.org/abs/1805.06200
Publikováno v:
The Journal of chemical physics, vol 148, iss 10
The quantum phase transitions of dipoles confined to the vertices of two dimensional (2D) lattices of square and triangular geometry is studied using path integral ground state quantum Monte Carlo (PIGS). We analyze the phase diagram as a function of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83b819483ae7314b6a9719c590296076
Autor:
Robert E. Zillich
Publikováno v:
Journal of Computational Physics. 301:111-118
We construct an accurate imaginary time propagator for path integral Monte Carlo simulations for heterogeneous systems consisting of a mixture of atoms and molecules. We combine the pair density approximation, which is highly accurate but feasible on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d6cbfdecc06ff490416677c76be582a
https://doi.org/10.1016/j.jcp.2015.08.020
https://doi.org/10.1016/j.jcp.2015.08.020
Autor:
Anders A. Søndergaard, Benjamin Shepperson, Jan Kaczmarczyk, Mikhail Lemeshko, Lars Christiansen, Henrik Stapelfeldt, Robert E. Zillich
Publikováno v:
Shepperson, B, Sondergaard, A A, Christiansen, L, Kaczmarczyk, J, Zillich, R E, Lemeshko, M & Stapelfeldt, H 2017, ' Laser-Induced Rotation of Iodine Molecules in Helium Nanodroplets : Revivals and Breaking Free ', Physical Review Letters, vol. 118, no. 20, 203203 . https://doi.org/10.1103/PhysRevLett.118.203203
Rotation of molecules embedded in He nanodroplets is explored by a combination of fs laser-induced alignment experiments and angulon quasiparticle theory. We demonstrate that at low fluence of the fs alignment pulse, the molecule and its solvation sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ada778e3025987539c039379c46c3c61
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
We study the ground state of a bilayer system of dipolar bosons with dipoles oriented by an external field perpendicularly to the two parallel planes. By decreasing the interlayer distance, for a fixed value of the strength of the dipolar interaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ab588a8c96041cf9d9c052fb4766c2a
https://doi.org/10.1103/physreva.94.063630
https://doi.org/10.1103/physreva.94.063630
We present a method for calculating the dynamics of a bosonic mixture, the multi-component correlated basis function (CBF) method. For single components, CBF results for the excitation energies agree quite well with experimental results, even for hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9c6845a435a87eb4b0747dfdc00a877
http://arxiv.org/abs/1611.04757
http://arxiv.org/abs/1611.04757