Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Alberto Cappellaro"'
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013029 (2023)
Brownian motion of a mobile impurity in a bath is affected by spin-orbit coupling (SOC). Here, we discuss a Caldeira-Leggett-type model that can be used to propose and interpret quantum simulators of this problem in cold Bose gases. First, we derive
Externí odkaz:
https://doaj.org/article/412a3523dbef4d74bc9b6537f6138cbb
Publikováno v:
Symmetry, Vol 14, Iss 10, p 2182 (2022)
We review our theoretical results of the sound propagation in two-dimensional (2D) systems of ultracold fermionic and bosonic atoms. In the superfluid phase, characterized by the spontaneous symmetry breaking of the U(1) symmetry, there is the coexis
Externí odkaz:
https://doaj.org/article/d6f00677da55447bb87d1f45faa66ae9
Brownian motion of a mobile impurity in a bath is affected by spin-orbit coupling (SOC). Here, we discuss a Caldeira-Leggett-type model that can be used to propose and interpret quantum simulators of this problem in cold Bose gases. First, we derive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de92f4e37281ec6085fbf11c1d9b69f3
http://arxiv.org/abs/2210.01829
http://arxiv.org/abs/2210.01829
Publikováno v:
Condensed Matter, Vol 4, Iss 3, p 81 (2019)
In this brief report we discuss the action functional of a particle with damping, showing that it can be obtained from the dissipative equation of motion through a modification which makes the new dissipative equation invariant for time reversal symm
Externí odkaz:
https://doaj.org/article/c21326e9cec549c398a150e86bf927c7
Autor:
Alberto Cappellaro, Luca Salasnich
Publikováno v:
Applied Sciences, Vol 9, Iss 7, p 1498 (2019)
We present a field-theory description of ultracold bosonic atoms in the presence of a disordered external potential. By means of functional integration techniques, we aim to investigate and review the interplay between disordered energy landscapes an
Externí odkaz:
https://doaj.org/article/72d2a7e0aebb4882bd48a2d81542d613
Sound propagation is a macroscopic manifestation of the interplay between the equilibrium thermodynamics and the dynamical transport properties of fluids. Here, for a two-dimensional system of ultracold fermions, we calculate the first and second sou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::281214ecc08f282b18ab718d3a624a82
http://hdl.handle.net/11577/3398415
http://hdl.handle.net/11577/3398415
Autor:
Alberto Cappellaro, Luca Salasnich
Publikováno v:
Scientific Reports
Scientific reports (Nature Publishing Group) 10 (2020): 9088-1–9088-10. doi:10.1038/s41598-020-65790-8
info:cnr-pdr/source/autori:Cappellaro, Alberto; Salasnich, Luca/titolo:Shift of the critical temperature in superconductors: a self-consistent approach/doi:10.1038%2Fs41598-020-65790-8/rivista:Scientific reports (Nature Publishing Group)/anno:2020/pagina_da:9088-1/pagina_a:9088-10/intervallo_pagine:9088-1–9088-10/volume:10
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Scientific reports (Nature Publishing Group) 10 (2020): 9088-1–9088-10. doi:10.1038/s41598-020-65790-8
info:cnr-pdr/source/autori:Cappellaro, Alberto; Salasnich, Luca/titolo:Shift of the critical temperature in superconductors: a self-consistent approach/doi:10.1038%2Fs41598-020-65790-8/rivista:Scientific reports (Nature Publishing Group)/anno:2020/pagina_da:9088-1/pagina_a:9088-10/intervallo_pagine:9088-1–9088-10/volume:10
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Within the Ginzburg-Landau functional framework for the superconducting transition, we analyze the fluctuation-driven shift of the critical temperature. In addition to the order parameter fluctuations, we also take into account the fluctuations of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e55d410a0c6e13af7ca41ac4d95bc24
http://hdl.handle.net/11577/3349698
http://hdl.handle.net/11577/3349698
Publikováno v:
New Journal of Physics. 22:073020
We study the quantum tunneling of two one-dimensional quasi-condensates made of alkali-metal atoms, considering two different tunneling configurations: side-by-side and head-to-tail. After deriving the quasiparticle excitation spectrum, we discuss th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f95982da46daad059961f2644176ad4
https://doi.org/10.1088/1367-2630/ab965d
https://doi.org/10.1088/1367-2630/ab965d
We study the dynamics of dilute and ultracold bosonic gases in a quasi two-dimensional (2D) configuration and in the collisionless regime. We adopt the 2D Landau-Vlasov equation to describe a three-dimensional gas under very strong harmonic confineme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35bbd4f55080754f56a18830cd2c7610
http://arxiv.org/abs/1807.02541
http://arxiv.org/abs/1807.02541
Publikováno v:
Physical Review A. 97
We study the collective modes of a binary Bose mixture across the soliton to droplet crossover in a quasi one dimensional waveguide with a beyond-mean-field equation of state and a variational Gaussian ansatz for the scalar bosonic field of the corre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10c085a443c8176f0676e0eae934bb3c
https://doi.org/10.1103/physreva.97.053623
https://doi.org/10.1103/physreva.97.053623