Zobrazeno 1 - 10
of 328
pro vyhledávání: '"Mishra Pankaj Kumar"'
The Andreev-Bashkin (AB) effect, corresponding to the dissipationless dragging of one superfluid by another, was predicted almost fifty years ago but has so far eluded experimental detection. In this work, we theoretically introduce an entirely new d
Externí odkaz:
http://arxiv.org/abs/2410.21015
Autor:
Gangwar, Sonali, Ravisankar, Rajamanickam, Mistakidis, S. I., Muruganandam, Paulsamy, Mishra, Pankaj Kumar
We explore the ground states and quench dynamics of one-dimensional quantum droplets with spin-orbit coupling (SOC) and an imbalance in intracomponent interactions. A plethora of miscible ground state stripe and standard (i.e., non-modulated) droplet
Externí odkaz:
http://arxiv.org/abs/2409.01945
Publikováno v:
Physics of Fluids 36, 117121 (2024)
We present the simulation results of merging harmonically confined rotating Bose-Einstein condensates in two dimensions. Merging of the condensate is triggered by positioning the rotation axis at the trap minima and moving both condensates towards ea
Externí odkaz:
http://arxiv.org/abs/2402.18474
Autor:
Gangwar, Sanu Kumar, Ravisankar, Rajamanickam, Fabrelli, Henrique, Muruganandam, Paulsamy, Mishra, Pankaj Kumar
Publikováno v:
Phys. Rev. A 109, 043306 (2024)
We present the analytical and numerical results on the collective excitation spectrum of quasi-one-dimensional spin-orbit (SO) coupled spin-1 Bose-Einstein condensates. The collective excitation spectrum, using Bogoliubov-de-Gennes theory, reveals th
Externí odkaz:
http://arxiv.org/abs/2401.01310
Publikováno v:
Physics of Fluids 36, 027149 (2024)
We investigate the scaling of the energy cascade in a harmonically trapped, turbulent, rotating Bose-Einstein condensate (BEC) in two dimensions. We achieve turbulence by injecting a localized perturbation into the condensate and gradually increasing
Externí odkaz:
http://arxiv.org/abs/2310.06741
Autor:
Gangwar, Sonali, Ravisankar, Rajamanickam, Mistakidis, S. I., Muruganandam, Paulsamy, Mishra, Pankaj Kumar
Publikováno v:
Phys. Rev. A 109, 013321 (2024)
We investigate the ground state and dynamics of one-dimensional spin-orbit coupled (SOC) quantum droplets within the extended Gross-Pitaevskii approach. As the SOC wavenumber increases, stripe droplet patterns emerge, with a flat-top background, for
Externí odkaz:
http://arxiv.org/abs/2307.16742
Autor:
Pradhan, Nalinikanta, Kumar, Pardeep, Kanamoto, Rina, Dey, Tarak Nath, Bhattacharya, M., Mishra, Pankaj Kumar
We present numerical simulations of the cavity optomechanical detection of persistent currents and bright solitons in an atomic Bose-Einstein condensate confined in a ring trap. This work describes a novel technique that measures condensate rotation
Externí odkaz:
http://arxiv.org/abs/2306.06720
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 56 165302 (2023)
We present simulation results of the ground state structure and dynamics of quantum droplets in one-dimensional spin-orbit coupled binary Bose-Einstein condensates. We have considered two cases for this analysis, such as (i) the mean-field term has a
Externí odkaz:
http://arxiv.org/abs/2303.01216
quTARANG is a Python-based general-purpose Gross-Pitaevskii Equation (GPE) solver. It can solve GPE in 1D, 2D and 3D and has the ability to run on both CPU and GPU. It has been developed to study turbulence in quantum systems, specifically in atomic
Externí odkaz:
http://arxiv.org/abs/2301.08275
This paper deals with the tracking control problem for a class of unknown pure feedback system with pure state constraints on the state variables and unknown time-varying bounded disturbances. An adaptive controller is presented for such systems for
Externí odkaz:
http://arxiv.org/abs/2210.04211