Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Analabha Roy"'
Publikováno v:
New Journal of Physics, Vol 26, Iss 6, p 063035 (2024)
Chimera states are a captivating occurrence in which a system composed of multiple interconnected elements exhibits a distinctive combination of synchronized and desynchronized behavior. The emergence of these states can be attributed to the complex
Externí odkaz:
https://doaj.org/article/316f8ccd96d945d5902487ba3d73a742
Autor:
Romain Bachelard, Lorenzo Pucci, Analabha Roy, Robin Kaiser, Tiago Santiago do Espirito Santo, Michael Kastner
Publikováno v:
Physical Review A. 95
Scattering of classical light by atomic clouds induces photon-mediated effective long-range interactions between the atoms and leads to cooperative effects even at low atomic densities. We introduce a novel simulation technique that allows us to inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f54d4bee29723ea04db4b88219cf4cb
https://doi.org/10.1103/physreva.95.053625
https://doi.org/10.1103/physreva.95.053625
Publikováno v:
Physical Review B. 93
A numerical method, suitable for the simulation of the time evolution of quantum spin models of arbitrary lattice dimension, is presented. The method combines sampling of the Wigner function with evolution equations obtained from the Bogoliubov-Born-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e73ff74d263f0d546c1f601d80f4b7d4
https://doi.org/10.1103/physrevb.93.174302
https://doi.org/10.1103/physrevb.93.174302
Autor:
Analabha Roy
The aim of this mini review is to survey the literature on the study of nonequilibrium dynamics of Fermi superfluids in the BCS and BEC limits, both in the single channel and dual channel cases. The focus is on mean field approaches to the dynamics,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e580b1d05797cb7614bceca9d83c8952
http://arxiv.org/abs/1211.6936
http://arxiv.org/abs/1211.6936
Autor:
Jayanta K. Bhattacharjee, Analabha Roy
Publikováno v:
Physics Letters A. 288:1-3
We treat the double well quantum oscillator from the standpoint of the Ehrenfest equation but in a manner different from Pattanayak and Schieve. We show that for short times there can be chaotic motion due to quantum fluctuations, but over sufficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6f7eecfebf882743c4351a9cd936927
https://doi.org/10.1016/s0375-9601(01)00351-6
https://doi.org/10.1016/s0375-9601(01)00351-6
Autor:
Analabha Roy, Linda E Reichl
We study the avoided crossings in the dynamics of quantum controlled excitations for an interacting two-boson system in an optical lattice. Specifically, we perform numerical simulations of quantum control in this system where driving pulses connect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaa1281674d3f84a4a3e7baa77e90cee
http://arxiv.org/abs/0907.3813
http://arxiv.org/abs/0907.3813
Autor:
Analabha Roy, Linda E Reichl
Publikováno v:
Physical Review A. 77
We investigate the quantum behavior of a mesoscopic two-boson system produced by number-squeezing ultracold gases of alkali metal atoms. The quantum Poincare maps of the wavefunctions are affected by chaos in those regions of the phase space where th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbc72efe467ad072d60c6823a0a846e3
https://doi.org/10.1103/physreva.77.033418
https://doi.org/10.1103/physreva.77.033418
Publikováno v:
Journal of Physics: Condensed Matter. 25:205703
We study the zero temperature non-equilibrium dynamics of a fermionic superfluid in the BCS limit and in the presence of a drive leading to a time dependent chemical potential $\mu(t)$. We choose a periodic driving protocol characterized by a frequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c76e177afecfd11d7ee0e8b6c6ed7dd
https://doi.org/10.1088/0953-8984/25/20/205703
https://doi.org/10.1088/0953-8984/25/20/205703
Publikováno v:
Physical Review B. 3:3597-3603
The EPR and polarized optical spectra of copper calcium acetate hexahydrate and ${\mathrm{Cu}}^{2+}$ doped in isomorphous cadmium calcium acetate hexahydrate have been investigated in the range of temperature 300-77 \ifmmode^\circ\else\textdegree\fi{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c83555c93db99489b4caabb3b7fa259
https://doi.org/10.1103/physrevb.3.3597
https://doi.org/10.1103/physrevb.3.3597