Results 91 to 100 of about 1,307,918 (342)

Entanglement induced by two-mode thermal noise taking into account the dipole-dipole interaction and atomic coherence

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The entanglement of two two-level atoms with the nondegenerate two-photon transitions interacting with two-mode thermal field in lossless cavity has been considered.
Eugene K Bashkirov, Ekaterina G Mangulova   +1 more
doaj  

Propagation of generalized multi-Gaussian correlated Schell-model beams in electromagnetically induced transparency atomic vapor

Results in Physics
Propagation of generalized multi-Gaussian correlated Schell-model (GMGCSM) beams through four-level electromagnetically induced transparency (EIT) atomic vapor is investigated for the first time.
Wenbo Li, Zhirong Liu
doaj   +1 more source

Observation of sub-Doppler absorption in the /Lambda-type three-level Doppler-broadened cesium system [PDF]

, 2003
Thanks to the atomic coherence in coupling laser driven atomic system, sub-Doppler absorption has been observed in Doppler-broadened cesium vapor cell via the /Lambda-type three-level scheme.
Liu, Tao, Wang, Junmin, Wang, Yanhua, Yan, Shubin, Zhang, Tiancai   +4 more
core   +1 more source

Coherent states for the hydrogen atom [PDF]

Journal of Physics A: Mathematical and General, 1996
The long-standing problem of finding coherent states for the (bound state portion of the) hydrogen atom is positively resolved. The states in question: (i) are normalized and are parameterized continuously, (ii) admit a resolution of unity with a positive measure, and (iii) enjoy the property that the temporal evolution of any coherent state by the ...
openaire   +3 more sources

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Entanglement between atoms succesively passing the cavity with thermal field

Физика волновых процессов и радиотехнические системы, 2015
In the present paper the entanglement dynamics of two atoms succesively passing the one-atom maser cavity with finite temperature has been considered. The influence of the initial atomic coherence and intensity of the thermal cavity field on the degree ...
E.K. Bashkirov, T.S. Mastyugina
doaj  

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Chip-scale atomic diffractive optical elements

Nature Communications, 2019
Quantum coherence and the nonlinear properties of atoms are highly useful in optical devices. Here the authors show quantum-optic hybrid platforms in fully integrated chip-scale atomic diffractive optical elements by embedding hot atomic Rb vapor in ...
Liron Stern, Douglas G. Bopp, Susan A. Schima, Vincent N. Maurice, John E. Kitching   +4 more
doaj   +1 more source

Long-lived qubit memory using atomic ions

, 2005
We demonstrate experimentally a robust quantum memory using a magnetic-field-independent hyperfine transition in 9Be+ atomic ion qubits at a magnetic field B ~= 0.01194 T. We observe that the single physical qubit memory coherence time is greater than 10
A. Ben-Kish, B. DeMarco, C. Langer, D. Hume, D. Leibfried, D. Wineland, D. J. Wineland, E. Knill, J. Britton, J. Chiaverini, J. Jost, J. Preskill, M. A. Rowe, N. F. Ramsey, P. Schmidt, P. J. Lee, R. Blakestad, R. Ozeri, R. Reichle, T. Rosenband, T. Schaetz, W. Itano   +21 more
core   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source