Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Shabnam Safaei"'
Publikováno v:
Physical Review A. 100
Complex circuits of cold atoms can be exploited to devise new protocols for the diagnostics of cold-atoms systems. Specifically, we study the quench dynamics of a condensate confined in a ring-shaped potential coupled with a rectilinear guide of fini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c85c46fc12d90c2d6ec753feb7a23b7c
https://doi.org/10.1103/physreva.100.013621
https://doi.org/10.1103/physreva.100.013621
Publikováno v:
Physica C: Superconductivity and its Applications
The exact numerical solution of the nonlinear Ginzburg–Landau equation for Josephson junctions is obtained, from which the precise nontrivial current density and effective potential of the Josephson junctions are found. Based on the resulting poten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e67f0ad5558db2f09037ab2d08d3b581
https://doi.org/10.1016/j.physc.2011.05.002
https://doi.org/10.1016/j.physc.2011.05.002
Autor:
Christian Miniatura, Rainer Dumke, Luigi Amico, Shabnam Safaei, Benoît Grémaud, Leong Chuan Kwek
Publikováno v:
Physical Review A
Physical Review A, American Physical Society 2018, 97 (4), pp.042306. ⟨10.1103/PhysRevA.97.042306⟩
Physical Review A, American Physical Society 2018, 97 (4), pp.042306. ⟨10.1103/PhysRevA.97.042306⟩
Through a combination of laser beams, we engineer a two-dimensional optical lattice of Mexican hat potentials able to host atoms in its ring-shaped wells. When tunneling can be ignored (at high laser intensities), we show that a well-defined qubit ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cea87b53cc1fbb3617f62cfaa28e62fc
Publikováno v:
Physical Review A. 92
We consider a two-dimensional homogeneous ensemble of cold bosonic atoms loaded inside two optical cavities and pumped by a far-detuned external laser field. We examine the conditions for these atoms to self-organize into triangular and honeycomb lat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc5ade952499bd4579d12ad521387b08
https://doi.org/10.1103/physreva.92.043810
https://doi.org/10.1103/physreva.92.043810
Publikováno v:
New Journal of Physics
We investigate the synthesis of a hyperfine spin lattice in an atomic Bose-Einstein condensate, with two hyperfine spin components, inside a one-dimensional high-finesse optical cavity, using off-resonant superradiant Raman scattering. Spatio-tempora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a7908167ad9f69cbcd005df6bbf0953
https://hdl.handle.net/11693/20872
https://hdl.handle.net/11693/20872
Publikováno v:
Laser Physics
Laser physics
Laser physics
We consider a two-component Bose-Einstein condensate in a one-dimensional optical cavity. Specifically, the condensate atoms are taken to be in two degenerate modes due to their internal hyperfine spin degrees of freedom and they are coupled to the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcf1cde9572104ce0821f749ac8dc3a0
https://hdl.handle.net/11693/21046
https://hdl.handle.net/11693/21046
In a Josephson phase qubit the coherent manipulations of the computational states are achieved by modulating an applied ac current, typically in the microwave range. In this work we show that it is possible to find optimal modulations of the bias cur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faf758d56ad048dc4f8cadff27764d03
https://hdl.handle.net/11384/3894
https://hdl.handle.net/11384/3894
Publikováno v:
77 (2008).
info:cnr-pdr/source/autori:Safaei, S; Montangero, S; Taddei, F; Fazio, R/titolo:Optimized cooper pair pumps/doi:/rivista:/anno:2008/pagina_da:/pagina_a:/intervallo_pagine:/volume:77
info:cnr-pdr/source/autori:Safaei, S; Montangero, S; Taddei, F; Fazio, R/titolo:Optimized cooper pair pumps/doi:/rivista:/anno:2008/pagina_da:/pagina_a:/intervallo_pagine:/volume:77
In adiabatic Cooper pair pumps, operated by means of gate voltage modulation only, the quantization of the pumped charge during a cycle is limited due to the quantum coherence of the macroscopic superconducting wave function. In this work we show tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cc40b9a60ca520fb37eaf5d3cb4b9cc
https://hdl.handle.net/11384/6120
https://hdl.handle.net/11384/6120