Optical collisions and redistribution in the presence of an intense driving field

1984 ◽  
Vol 9 (4) ◽  
pp. 609-615
Author(s):  
F. Schuller
Keyword(s):  
Driving Field ◽  
Optical Collisions

Analytic expressions for fluorescence spectra and optical collision rates of collisionally perturbed atoms in a strong driving field

1984 ◽  
Vol 62 (2) ◽  
pp. 183-191 ◽  
Author(s):  
F. Schuller ◽  
G. Nienhuis
Keyword(s):  
Collision Operator ◽  
Line Broadening ◽  
Pressure Broadening ◽  
Driving Field ◽  
Field Independent ◽  
Intensity Field ◽  
Analytic Expressions ◽  
Limiting Case ◽  
Optical Collisions ◽  
Weak Fields

We have studied the problem of a collisionally perturbed two-level atom in an intense driving field by developing a method which allows us to calculate the field-dependent collision operator in terms of the low intensity field-independent line-broadening function arising in the usual unified theory of pressure broadening. Our relations are exact to all orders in the field in the limiting case of weak collisions, but they are exact also in the complementary case of strong collisions and weak fields. We apply our results to derive explicit expressions for the rate of optical collisions, the fluorescence spectrum in the case of well-separated components, and the absorption during an adiabatic square pulse.

Coupled electric fields in photorefractive driven liquid crystal hybrid cells – theory and numerical simulation

2016 ◽  
Vol 24 (4) ◽  
Author(s):  
P. Moszczyński ◽  
A. Walczak ◽  
P. Marciniak
Keyword(s):  
Numerical Simulation ◽  
Laser Beam ◽  
Electric Fields ◽  
Cell Response ◽  
Liquid Crystalline ◽  
Driving Field ◽  
Self Organized ◽  
Photosensitive Polymer ◽  
Photosensitive Layer ◽  
External Driving

AbstractIn cyclic articles previously published we described and analysed self-organized light fibres inside a liquid crystalline (LC) cell contained photosensitive polymer (PP) layer. Such asymmetric LC cell we call a hybrid LC cell. Light fibre arises along a laser beam path directed in plane of an LC cell. It means that a laser beam is parallel to photosensitive layer. We observed the asymmetric LC cell response on an external driving field polarization. Observation has been done for an AC field first. It is the reason we decided to carry out a detailed research for a DC driving field to obtain an LC cell response step by step. The properly prepared LC cell has been built with an isolating layer and garbage ions deletion. We proved by means of a physical model, as well as a numerical simulation that LC asymmetric response strongly depends on junction barriers between PP and LC layers. New parametric model for a junction barrier on PP/LC boundary has been proposed. Such model is very useful because of lack of proper conductivity and charge carriers of band structure data on LC material.

Collective radiation of multi-atom in cavity under the external driving field

2021 ◽  
pp. 127772
Author(s):  
Na Li ◽  
Hanwen Jiang ◽  
Xiuwen Xia ◽  
Chengjie Zhu ◽  
Shuangyuan Xie ◽  
...  
Keyword(s):  
Driving Field ◽  
External Driving

scholarly journals STATIONARY STATE ENTANGLEMENT AND TOTAL CORRELATION OF TWO QUBITS OR QUTRITS

2005 ◽  
Vol 19 (30) ◽  
pp. 1803-1811
Author(s):  
SHANG-BIN LI ◽  
JING-BO XU
Keyword(s):  
Mutual Information ◽  
Stationary State ◽  
Sufficient Condition ◽  
Stationary States ◽  
Driving Field ◽  
Total Correlation ◽  
Action Time ◽  
Damped Oscillation ◽  
External Driving

We investigate the mutual information and entanglement of stationary states of two locally driven qubits under the influence of collective dephasing. It is shown that both the mutual information and the entanglement of two qubits in the stationary state exhibit damped oscillation with the scaled action time γT of the local external driving field. It means that we can control both the entanglement and total correlation of the stationary state of two qubits by adjusting the action time of the driving field. We also consider the influence of collective dephasing on the entanglement of two qutrits and obtain the sufficient condition that the stationary state is entangled.

scholarly journals Charging Quantum Batteries with a General Harmonic Driving Field

2020 ◽  
Vol 532 (4) ◽  
pp. 1900487 ◽  
Author(s):  
Jie Chen ◽  
Liyao Zhan ◽  
Lei Shao ◽  
Xingyu Zhang ◽  
Yuyu Zhang ◽  
...  
Keyword(s):  
Driving Field
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