Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Mukherjee, Koushik"'
Autor:
Hertkorn, Jens, Stürmer, Philipp, Mukherjee, Koushik, Ng, Kevin S. H., Uerlings, Paul, Hellstern, Fiona, Lavoine, Lucas, Reimann, Stephanie, Pfau, Tilman, Klemt, Ralf
We theoretically investigate elementary excitations of dipolar quantum gases across the superfluid to supersolid phase transition in a toroidal trap. We show how decoupled first sound, second sound, and Higgs modes emerge by following their origin fr
Externí odkaz:
http://arxiv.org/abs/2404.12384
Autor:
Mukherjee, Koushik, Tengstrand, Mikael Nilsson, Cardinale, Tiziano Arnone, Reimann, Stephanie M.
We theoretically investigate a novel supersolid structure taking the form of stacked, disk-shaped superfluid droplets connected via a dilute superfluid, in an antidipolar condensate. A phase diagram is determined for varying the particle number and s
Externí odkaz:
http://arxiv.org/abs/2304.06456
Autor:
Huh, SeungJung, Mukherjee, Koushik, Kwon, Kiryang, Seo, Jihoon, Mistakidis, Simeon I., Sadeghpour, H. R., Choi, Jae-yoon
Publikováno v:
Nature Physics (2024)
Scale invariance and self-similarity in physics provide a unified framework to classify phases of matter and dynamical properties of near-equilibrium systems. However, extending this framework to far-from-equilibrium quantum many-body systems and cat
Externí odkaz:
http://arxiv.org/abs/2303.05230
Publikováno v:
Phys. Rev. A 106, 023306 (2022)
We conduct a theoretical study of the creation and dynamics of vortices in a two-dimensional binary Bose-Einstein condensate with a mass imbalance between the species. To initiate the dynamics, we use one or two rotating paddle potentials in one spec
Externí odkaz:
http://arxiv.org/abs/2202.04531
Publikováno v:
Physics Letters A 421 (127776) 2022
We theoretically investigate the out-of-equilibrium dynamics in a binary Bose-Einstein condensate confined within two-dimensional box potentials. One species of the condensate interacts with a pair of oppositely wound, but otherwise identical Laguerr
Externí odkaz:
http://arxiv.org/abs/2105.13714
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 53(2020)
In this paper, we have formulated a theory for the microscopic interaction of the asymmetric Laguerre-Gaussian (aLG) beam with the atomic Bose-Einstein condensate (BEC) in a harmonic trap. Here the asymmetry is introduced to an LG beam considering a
Externí odkaz:
http://arxiv.org/abs/1907.04090
We examine the dynamics associated with the creation of a vortex in a Bose-Einstein condensate (BEC), from another nonrotating BEC using two-photon Raman transition with Gaussian (G) and Laguerre-Gaussian (LG) laser pulses. In particular, we consider
Externí odkaz:
http://arxiv.org/abs/1906.01968
Publikováno v:
In Materials Today: Proceedings 2023 92 Part 2:906-911
Autor:
Saha, Pritam, Mukherjee, Koushik
Publikováno v:
In Materials Today: Proceedings 2023 80 Part 2:762-768
Transfer mechanism of orbital angular moment(OAM) of light to trapped ground-state atoms under paraxial approximation is well known. Here we show how optical OAM of a Laguerre-Gaussian(LG) beam under paraxial approximation can be transferred to trapp
Externí odkaz:
http://arxiv.org/abs/1702.05969