Results 41 to 50 of about 144,548 (197)

Quasipure Bose-Einstein condensate immersed in a Fermi sea. [PDF]

Physical Review Letters, 2001
We report the observation of coexisting Bose-Einstein condensate (BEC) and Fermi gas in a magnetic trap. With a very small fraction of thermal atoms, the 7Li condensate is quasipure and in thermal contact with a 6Li Fermi gas.
F. Schreck, L. Khaykovich, K. Corwin, G. Ferrari, T. Bourdel, J. Cubizolles, C. Salomon   +6 more
semanticscholar   +1 more source

Is There A Pure Electronic Ferroelectric?

Advanced Electronic Materials, EarlyView.
The search for faster, more reliable ferroelectric materials has shifted from traditional lattice‐driven ferroelectrics, which rely on slow ionic displacements, to electronic ferroelectrics, where polarization is governed by electronic ordering. This shift enables ultrafast switching, low‐field operation, and resistance to fatigue.
Xudong Wang, Guichen Teng, Xiangjian Meng, Zhenxiang Cheng, Tie Lin, Hao Shen, Xiaodan Wang, Jianlu Wang, Junhao Chu   +8 more
wiley   +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

OPTICAL CONFINEMENT OF A BOSE-EINSTEIN CONDENSATE [PDF]

, 1997
Bose-Einstein condensates of sodium atoms have been confined in an optical dipole trap using a single focused infrared laser beam. This eliminates the restrictions of magnetic traps for further studies of atom lasers and Bose-Einstein condensates.
D. Stamper-Kurn, M. R. Andrews, A. Chikkatur, S. Inouye, H. Miesner, J. Stenger, W. Ketterle   +6 more
semanticscholar   +1 more source

Quantum Kibble-Zurek Mechanism in a Spin-1 Bose-Einstein Condensate. [PDF]

Physical Review Letters, 2015
The dynamics of a quantum phase transition are explored using slow quenches from the polar to the broken-axisymmetry phases in a small spin-1 ferromagnetic Bose-Einstein condensate. Measurements of the evolution of the spin populations reveal a power-law
M. Anquez, B. Robbins, H. M. Bharath, M. Boguslawski, T. Hoang, M. Chapman   +5 more
semanticscholar   +1 more source

Efficient Dynamics: Reduced‐Order Modeling of the Time‐Dependent Schrödinger Equation

Advanced Physics Research, EarlyView.
Reduced‐order modeling (ROM) approaches for the time‐dependent Schrödinger equation are investigated, highlighting their ability to simulate quantum dynamics efficiently. Proper Orthogonal Decomposition, Dynamic Mode Decomposition, and Reduced Basis Methods are compared across canonical systems and extended to higher dimensions.
Kolade M. Owolabi
wiley   +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

Strongly dipolar Bose-Einstein condensate of dysprosium. [PDF]

Physical Review Letters, 2011
We report the Bose-Einstein condensation (BEC) of the most magnetic element, dysprosium. The Dy BEC is the first for an open f-shell lanthanide (rare-earth) element and is produced via forced evaporation in a crossed optical dipole trap loaded by an ...
Mingwu Lu, N. Burdick, S. Youn, B. Lev
semanticscholar   +1 more source

Self‐Creation of Accelerated Temporal Mirrors

Advanced Physics Research, EarlyView.
The field of temporal analog effects is rapidly emerging and seen as a driver of a paradigm shift in photonics. It promises striking new phenomena but remains experimentally challenging. This work introduces a mechanism that automatically creates a temporal mirror with simple optical means, unlocking practical access to extreme nonlinear dynamics and ...
Oliver Melchert, Surajit Bose, Uwe Morgner, Ihar Babushkin, Ayhan Demircan   +4 more
wiley   +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