Results 91 to 100 of about 142,410 (240)
Magnetic Hopfions as Local Rotations of the Uniform Magnetization Background
physica status solidi (RRL) – Rapid Research Letters, EarlyView.The Hopf mapping of 3D coordinate space to the unit sphere m2 = 1 in the magnetization space m(r) can be parametrized by some angles. These angles are used to define a local rotation matrix to restore the hopfion magnetization configuration from the uniformly magnetized state for any Hopf indices.
Konstantin Y. Guslienko
wiley +1 more source
Effect of Dimple Potential on Ultraslow Light in a Bose-Einstein Condensate
, 2012 We investigate the propagation of ultraslow optical pulse in atomic Bose-Einstein condensate in a harmonic trap decorated with a dimple potential. The role of dimple potential on the group velocity and time delay is studied.
Tarhan, Devrim, Uncu, Haydar
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
Ambient Condition Superconductivity via Engineered Polaronic Environment
physica status solidi (RRL) – Rapid Research Letters, EarlyView.A novel strategy for increasing the critical temperature Tc of superconductors is proposed. It involves mating ultrathin layers of superconductors (e.g. MgB2) and metal‐organic framework materials, with a renormalized dielectric response yielding a new system with strengthened Cooper pairing via resonant antishielding. This study's estimates of Tc show
Krzysztof Kempa, Michael J. Naughton
wiley +1 more source
Stirring Bose-Einstein condensate
, 2002 By shining a tightly focused laser light on the condensate and moving the center of the beam along the spiral line one may stir the condensate and create vortices.
+6 more
core +1 more source
Unveiling Hidden Features of Strongly Correlated Quantum Systems Through a Complex‐Network Analysis
Advanced Quantum Technologies, EarlyView.By applying complex network theory, we report a fundamental and previously unobserved phenomenon in the finite‐size Kitaev model: a singular point at which uniform, nonzero entanglement emerges among all fermion pairs, forming a complete entanglement network.
Guillem Llodrà +2 more
wiley +1 more source
Collective modes of a photon Bose–Einstein condensate with thermo-optic interaction
New Journal of Physics, 2019 Although for photon Bose–Einstein condensates the main mechanism of the observed photon–photon interaction has already been identified to be of a thermo-optic nature, its influence on the condensate dynamics is still unknown.
Enrico Stein +2 more
doaj +1 more source
Non-exponential one-body loss in a Bose-Einstein condensate
, 2012 We have studied the decay of a Bose-Einstein condensate of metastable helium atoms in an optical dipole trap. In the regime where two- and three-body losses can be neglected we show that the Bose-Einstein condensate and the thermal cloud show ...
J. S. Borbely +4 more
core +2 more sources
Time‐Domain Visualization of Electron‐Phonon Coupling in Nanographenes
Small Methods, EarlyView.Impulsive vibrational spectroscopy, Raman spectroscopy, and density functional theory calculations are gathered together to unveil elusive low‐frequency collective vibrational modes in dibenzo[hi,st]ovalene nanographenes, enabling the detailed comparison between vibrational modes in derivatives with different peripheral groups.
Rafael Muñoz‐Mármol +13 more
wiley +1 more source
Hidden vortices in a Bose-Einstein condensate in a rotating double-well potential
, 2010 We study vortex formation in a Bose-Einstein condensate in a rotating double-well potential. Besides the ordinary quantized vortices and elusive ghost vortices, "hidden" vortices are found distributing along the central barrier. These hidden vortices are
A. Barone +4 more
core +1 more source