Results 61 to 70 of about 17,062 (212)

Dipole dynamics of an interacting bosonic mixture

Physical Review Research, 2022
We unravel the coupled dipole dynamics of a two-species Bose-Einstein condensate with tunable interspecies interaction. We produce a degenerate mixture of ^{41}K-^{87}Rb in an optical trap and we study the dipole oscillations of both atomic species in ...
Luca Cavicchioli, Chiara Fort, Michele Modugno, Francesco Minardi, Alessia Burchianti   +4 more
doaj   +1 more source

Observation of dipole-dipole interaction in a degenerate quantum gas [PDF]

, 2005
4 pages, 2 figuresWe have investigated the expansion of a Bose-Einstein condensate (BEC) of strongly magnetic chromium atoms. The long-range and anisotropic magnetic dipole-dipole interaction leads to an anisotropic deformation of the expanding Cr-BEC ...
Pedri, P., Santos, L.,, Pfau, T., Stuhler, J., Koch, T., Griesmaier, A., Fattori, M., Giovanazzi, S.   +7 more
core   +1 more source

Dipole‐Engineered Conductive Additives for Ultrastable Interphase Evolution in High‐Areal‐Capacity Silicon Anodes

Advanced Functional Materials, EarlyView.
In the work reported herein, dipole‐engineered sulfonated carbon nanofibers enable conductive additives to actively regulate interphase formation in silicon anodes. Polar sulfonyl groups guide electrolyte decomposition to form a compact LiF‐rich interphase while promoting robust integration with silicon.
Song Kyu Kang, Hyeonju Kim, Jeongbin Cho, Minseon Park, Taehun Kim, Seonghun Sin, Won Bae Kim   +6 more
wiley   +1 more source

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

Advanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi, Minh Tuan Luu, Christopher Linderälv, Vytautas Žalandauskas, Marianne Etzelmüller Bathen, Nguyen Tien Son, Takeshi Ohshima, Gergő Thiering, Lukas Razinkovas, Ronald Ulbricht   +9 more
wiley   +1 more source

Monitoring the dipole-dipole interaction via quantum jumps of individual atoms [PDF]

, 2001
The emission characteristics in the fluorescence of two laser-driven dipole-dipole-interacting three-level atoms is investigated. When the light from both atoms is detected separately a correlation of the emission processes is observed in dependence of ...
von Zanthier, J., Werner, E., Skornia, C., Walther, H., Agarwal, G. S.   +4 more
core   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Quantum transfer energy in the framework of time-dependent dipole-dipole interaction

Results in Physics, 2018
In this work, we examine the process of the quantum transfer of energy considering time-dependent dipole-dipole interaction in a dimer system characterized by two-level atom systems.
Reda M. El-Shishtawy, Robert C. Haddon, Saleh H. Al-Heniti, Bahaaudin M. Raffah, K. Berrada, S. Abdel-Khalek, Yas F. Al-Hadeethi   +6 more
doaj   +1 more source

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

Advanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo, Mingqi Xiao, Fangyuan Zhang, Hui Li, Yuli Jia, Zhenfang Zhang, Liqun Ye, Bo Yang, Tianyi Ma   +8 more
wiley   +1 more source

A cold strontium Rydberg gas [PDF]

, 2011
Cold gases of Rydberg atoms are an ideal system in which to study the novel effects of strong interatomic interactions. This thesis describes the design and construction of the world's first experiment to study Rydberg states in a cold gas of an alkaline
MILLEN, JAMES
core  

Probing the light-induced dipole-dipole interaction in momentum space [PDF]

, 2005
We theoretically investigate the mechanical effect of the light-induced dipole-dipole interaction potential on the atoms in a Bose-Einstein condensate. We present numerical calculations on the magnitude and shape of the induced potentials for different ...
R. Gati, T. Pfau, R. Löw, J. Stuhler
core   +1 more source