Effects of the control field on the optical multistability in V-type three-level atomic system

2006 ◽  
Vol 259 (1) ◽  
pp. 194-199 ◽  
Author(s):  
K.I. Osman
Keyword(s):  
Atomic System ◽  
Control Field ◽  
Optical Multistability

THE EFFECT OF DECAY-INDUCED INTERFERENCE ON THE PHASE CONTROL OF THE OPTICAL BISTABILITY (OB)

2009 ◽  
Vol 18 (03) ◽  
pp. 529-539 ◽  
Author(s):  
M. SAHRAI ◽  
R. KHERADMAND ◽  
N. SALAHSHOUR ◽  
M. MAHMOUDI
Keyword(s):  
Quantum Interference ◽  
Optical Bistability ◽  
Relative Phase ◽  
Atomic System ◽  
Ring Cavity ◽  
Phase Control ◽  
Optical Multistability ◽  
Applied Fields ◽  
Optical Ring ◽  
Incoherent Pumping Field

This paper studies the optical bistability in a degenerate three-level Λ-type atomic system in a unidirectional optical ring cavity. The effect of quantum interference on the phase control of the optical bistabilty is then discussed. It is shown that the optical bistability changes with the intensity of coupling and the rate of an incoherent pumping field. The possibility of creating an optical multistability (OM) by the intensity of coupling field relative phase between the applied fields, and the rate of an incoherent pump field has also been discussed.

scholarly journals Controllable atom-photon entanglement via quantum interference near plasmonic nanostructure

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Behzad Sangshekan ◽  
Mostafa Sahrai ◽  
Seyyed Hossein Asadpour ◽  
Jafar Poursamad Bonab
Keyword(s):  
Spontaneous Emission ◽  
Laser Field ◽  
Quantum Interference ◽  
Atomic System ◽  
Two Dimensional ◽  
Control Field ◽  
Plasmonic Nanostructure ◽  
Atomic Distance ◽  
Control Laser

AbstractA five-level atomic system is proposed in vicinity of a two-dimensional (2D) plasmonic nanostructure with application in atom-photon entanglement. The behavior of the atom-photon entanglement is discussed with and without a control laser field. The amount of atom-photon entanglement is controlled by the quantum interference created by the plasmonic nanostructure. Thus, the degree of atom-photon entanglement is affected by the atomic distance from the plasmonic nanostructure. In the presence of a control field, maximum entanglement between the atom and its spontaneous emission field is observed.

ANALYSIS OF THE OPTICAL MULTISTABILITY BEHAVIOR IN A FOUR-LEVEL ATOMIC SYSTEM WITH AN ASSISTING MICROWAVE-DRIVEN FIELD

2010 ◽  
Vol 24 (20) ◽  
pp. 2151-2160
Author(s):  
ZHI-PING WANG ◽  
SHUANG-XI ZHANG
Keyword(s):  
Steady State ◽  
Quantum Information Processing ◽  
Atomic System ◽  
Logic Gate ◽  
Ring Cavity ◽  
Optical Computing ◽  
Optical Switches ◽  
Spontaneously Generated Coherence ◽  
Optical Multistability ◽  
All Optical

We show the steady-state optical multistability (OM) behavior in a four-level atomic system inside a unidirectional ring cavity. We find that the intensity and the detunings of the fields can affect the optical multistability behavior dramatically, which can be used to control the transition from OM to OB or vice versa without the need to resort to the effect of spontaneously generated coherence (SGC). The effect of the atomic cooperation parameter on OM is also studied. Our scheme may be used for building more efficient all-optical switches and logic-gate devices for optical computing and quantum information processing.

scholarly journals Controllable Atom-Photon Entanglement Via Quantum Interference Near Plasmonic Nanostructure

2021 ◽  
Author(s):  
Behzad Sangshekan ◽  
Mostafa Sahrai ◽  
Seyyed Hossein Asadpour ◽  
Jafar Poursamad Bonab
Keyword(s):  
Spontaneous Emission ◽  
Laser Field ◽  
Quantum Interference ◽  
Atomic System ◽  
Two Dimensional ◽  
Control Field ◽  
Plasmonic Nanostructure ◽  
Atomic Distance ◽  
Control Laser

Abstract A five-level atomic system is proposed in vicinity of a two-dimensional (2D) plasmonic nanostructure with application in atom-photon entanglement. The behavior of the atom-photon entanglement is discussed with and without a control laser field. The amount of atom-photon entanglement is controlled by the quantum interference created by the plasmonic nanostructure. Thus, the degree of atom-photon entanglement is affected by the atomic distance from the plasmonic nanostructure. In the presence of a control field, maximum entanglement between the atom and its spontaneous emission field is observed.

Evaluation of Anaheim Adaptive Control Field Operational Test: Institutional Issues

1999 ◽  
Vol 1683 (1) ◽  
pp. 67-77 ◽  
Author(s):  
Michael G. McNally ◽  
Stephen P. Mattingly ◽  
James E. Moore ◽  
Hsi-Hwa Hu ◽  
C. Arthur MacCarley ◽  
...  
Keyword(s):  
Adaptive Control ◽  
Control Field ◽  
Institutional Issues ◽  
Operational Test ◽  
Field Operational Test

Nonreciprocal optical bistability based on Doppler effect in a three-level atomic system

2021 ◽  
Vol 488 ◽  
pp. 126862
Author(s):  
Wenjia Shi ◽  
Hongjun Zhang ◽  
Hui Sun ◽  
Peng Wang
Keyword(s):  
Doppler Effect ◽  
Optical Bistability ◽  
Atomic System

scholarly journals On detour index of cycloparaphenylene and polyphenylene molecular structures

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
S. Prabhu ◽  
Y. Sherlin Nisha ◽  
M. Arulperumjothi ◽  
D. Sagaya Rani Jeba ◽  
V. Manimozhi
Keyword(s):  
Atomic System ◽  
Molecular Structures ◽  
Topological Descriptors ◽  
Covalent Bonds ◽  
Atomic Structures ◽  
Topological Descriptor ◽  
Structure Activity ◽  
Mathematical Correlation ◽  
Benzene Rings ◽  
Unique Method

AbstractCycloparaphenylene is a particle that comprises a few benzene rings associated with covalent bonds in the para positions to frame a ring-like structure. Similarly, poly (para-phenylenes) are macromolecules that include benzenoid compounds straightforwardly joined to each other by C–C bonds. Because of their remarkable architectural highlights, these structures have fascinated attention from numerous vantage focuses. Descriptors are among the most fundamental segments of prescient quantitative structure-activity and property relationship (QSAR/QSPR) demonstrating examination. They encode chemical data of particles as quantitative numbers, which are utilized to create a mathematical correlation. The nature of a predictive model relies upon great demonstrating insights, yet additionally on the extraction of compound highlights. To a great extent, Molecular topology has exhibited its adequacy in portraying sub-atomic structures and anticipating their properties. It follows a two-dimensional methodology, just thinking about the interior plan, including molecules. Explicit subsets speak the design of every atom of topological descriptors. When all around picked, these descriptors give a unique method of describing an atomic system that can represent the most significant highlights of the molecular structure. Detour index is one such topological descriptor with much application in chemistry, especially in QSAR/QSPR studies. This article presents an exact analytical expression for the detour index of cycloparaphenylene and poly (para-phenylene).

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