Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser

We use the quantum theory of cascaded open systems to calculate the transmitted photon flux for a weak beam of photons from a cavity QED laser strongly focused onto a single, resonant two-state atom in the narrow-bandwidth limit. We study the dependence of the transmitted flux on the quantum stati...

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Main Authors: Abdul Hadi, Muhammad Salihi, Wahiddin, Mohamed Ridza, Hassan, Torla
Format: Article
Language:English
Published: American Physical Society 2003
Subjects:
Online Access:http://irep.iium.edu.my/31412/1/Quantum-trajectory_simulations.pdf
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author Abdul Hadi, Muhammad Salihi
Wahiddin, Mohamed Ridza
Hassan, Torla
author_facet Abdul Hadi, Muhammad Salihi
Wahiddin, Mohamed Ridza
Hassan, Torla
author_sort Abdul Hadi, Muhammad Salihi
collection IIUM
description We use the quantum theory of cascaded open systems to calculate the transmitted photon flux for a weak beam of photons from a cavity QED laser strongly focused onto a single, resonant two-state atom in the narrow-bandwidth limit. We study the dependence of the transmitted flux on the quantum statistics of the incident light. Both bunched and antibunched light generated by the microlaser are considered as input. Working within and outside the semiclassical perturbative regime, we explicitly demonstrate that the normalized transmitted photon flux may coincide with the second-order correlation function of the incident bunched light, but not for incident antibunched light both of which are generated by a cavity QED laser. Interestingly, the thresholdless cavity QED laser is ideal for investigating statistical saturation effects by virtue of its small system size and the large quantum fluctuations accompanying it. It has the advantage of characterizing to a certain extent the quantum noise responsible for the statistical saturation. One can also easily vary the degree of antibunching of the incident light by manipulating the pumping rate of the laser.
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spelling oai:generic.eprints.org:314122020-06-11T06:55:28Z http://irep.iium.edu.my/31412/ Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser Abdul Hadi, Muhammad Salihi Wahiddin, Mohamed Ridza Hassan, Torla Q Science (General) We use the quantum theory of cascaded open systems to calculate the transmitted photon flux for a weak beam of photons from a cavity QED laser strongly focused onto a single, resonant two-state atom in the narrow-bandwidth limit. We study the dependence of the transmitted flux on the quantum statistics of the incident light. Both bunched and antibunched light generated by the microlaser are considered as input. Working within and outside the semiclassical perturbative regime, we explicitly demonstrate that the normalized transmitted photon flux may coincide with the second-order correlation function of the incident bunched light, but not for incident antibunched light both of which are generated by a cavity QED laser. Interestingly, the thresholdless cavity QED laser is ideal for investigating statistical saturation effects by virtue of its small system size and the large quantum fluctuations accompanying it. It has the advantage of characterizing to a certain extent the quantum noise responsible for the statistical saturation. One can also easily vary the degree of antibunching of the incident light by manipulating the pumping rate of the laser. American Physical Society 2003-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/31412/1/Quantum-trajectory_simulations.pdf Abdul Hadi, Muhammad Salihi and Wahiddin, Mohamed Ridza and Hassan, Torla (2003) Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser. Physical Review A - Atomic, Molecular, and Optical Physics, 68 (6). 063804/1-063804/6. ISSN 1050-2947 http://dx.doi.org/10.1103/PhysRevA.68.063804 doi:10.1103/PhysRevA.68.063804
spellingShingle Q Science (General)
Abdul Hadi, Muhammad Salihi
Wahiddin, Mohamed Ridza
Hassan, Torla
Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser
title Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser
title_full Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser
title_fullStr Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser
title_full_unstemmed Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser
title_short Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser
title_sort quantum trajectory simulations of a two level atom cascaded to a cavity qed laser
topic Q Science (General)
url http://irep.iium.edu.my/31412/1/Quantum-trajectory_simulations.pdf
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