Results 41 to 50 of about 38,380 (146)

Macroscopic quantum tunnelling of a Bose-Einstein condensate in a Cubic-Plus-Quadratic Well

AAPPS Bulletin
We study the macroscopic quantum tunnelling of an interacting Bose-Einstein condensate in a cubic-plus-quadratic well that was approximately realized in recent experiment.
Rui-Bin Liu, Mingyang Liu, Shizhong Zhang   +2 more
doaj   +1 more source

Semiclassical solutions localized in a neighborhood of a circle for the Gross-Pitaevskii equation [PDF]

Компьютерные исследования и моделирование, 2009
Non-collapsing soliton-like wave functions are shown to exist in semiclassical approximation for the Bose-Einstein condensate model based on the Gross-Pitaevskii equation with attractive nonlinearity and external field of magnetic trap of special form.
Aleksei Vladimirovich Borisov, Andrey Yur'evich Trifonov, Aleksandr Vasilievich Shapovalov   +2 more
doaj   +1 more source

Condensate Heating by Atomic Losses

, 2003
Atomic Bose-Einstein condensate is heated by atomic losses. Predicted depletion ranges from 1% for a uniform 3D condensate to around 10% for a quasi-1D condensate in a harmonic trap.Comment: 4 pages in RevTex, 1 eps ...
A. Görlitz, A.L. Fetter, D.A.R. Dalvit, D.A.R. Dalvit, E. Timmermans, E.P. Gross, F. Dalfovo, G. Lindblad, J. Dziarmaga, J. Javanainen, Jacek Dziarmaga, K. Davis, Krzysztof Sacha, L.P. Pitaevskii, M.H. Anderson, M.W. Jack, S. Burger, Y. Castin   +17 more
core   +1 more source

Detection of acceleration radiation in a Bose-Einstein condensate [PDF]

, 2007
We propose and study methods for detecting the Unruh effect in a Bose-Einstein condensate. The Bogoliubov vacuum of a Bose-Einstein condensate is used here to simulate a scalar field-theory, and accelerated atom dots or optical lattices as means for ...
A. Retzker, B. Reznik, J. I. Cirac, M. B. Plenio, N. D. Birrell   +4 more
core   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

Advanced Science, EarlyView.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K, Kumar Shwetabh, Reyas Ali, Ramji Velayutham, Koustav Das, Abhishek Mondal, Prashant Kumar, Surendra B. Anantharaman   +7 more
wiley   +1 more source

Stability control in a helicoidal spin–orbit-coupled open Bose–Bose mixture

Open Physics, 2023
In this article, the modulation instability (MI) of open Bose–Bose mixtures with helicoidal spin–orbit coupling (SOC) was studied. Unlike previous spin–orbit (SO)-coupled Bose–Einstein condensate system with helicoidal gauge potential, the purpose of ...
Kong Chao, Yin Bin, Wu Jiaxin, Huang Jianquan, Lei Dajun, Jiang Chunzhi, Deng Haiming   +6 more
doaj   +1 more source

Low frequency gray-body factors and infrared divergences: rigorous results

, 2015
Formal solutions to the mode equations for both spherically symmetric black holes and Bose-Einstein condensate acoustic black holes are obtained by writing the spatial part of the mode equation as a linear Volterra integral equation of the second kind ...
Anderson, Paul R., Balbinot, Roberto, Fabbri, Alessandro   +2 more
core   +1 more source

Suprathermal Soliton Solutions to Nonlinear Schrödinger Equation

Contributions to Plasma Physics, EarlyView.
ABSTRACT Maxwell distributions are very difficult to find in the low‐pressure environment far away the Earth atmosphere, permeated by high temperatures, various types of radiation, highly energetic particles, space debris, and subjected to microgravity, presenting crucial challenges for spacecraft design and operations, and affecting astronaut's health.
F. E. M. Silveira, M. H. Benetti, I. L. Caldas   +2 more
wiley   +1 more source

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

Laser &Photonics Reviews, EarlyView.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf, Maximilian Black, Hebrew Crispin, Prabhdeep Singh, Parsa Darman, Sara Darbari, Fatemeh Chahshouri, Masoud Taleb, Nahid Talebi   +8 more
wiley   +1 more source

Can dark matter be a Bose-Einstein condensate?

, 2007
We consider the possibility that the dark matter, which is required to explain the dynamics of the neutral hydrogen clouds at large distances from the galactic center, could be in the form of a Bose-Einstein condensate. To study the condensate we use the
Arbey A, Barcelo C, Barcelo C, Binney J, Böhmer C G, Böhmer C G Harko T, C G Böhmer, Cabral-Rosetti L G, Chandrasekhar S, Chandrasekhar S, Ferrer F, Fukuyama T Morikawa M, Glendenning N K, Khlopov M Yu, Matos T, Matos T, Mielczarek J Stachowiak T Szydlowski M, Mielke E W Fuchs B Schunck F E, Moffat J, Nishiyama M Morita M-A Morikawa M, Padmanabhan T, Padmanabhan T, Persic M, Pitaevskii L, Sanders R H, Sanders R H, Short C J, Short C J, T Harko   +28 more
core   +1 more source