Quantum interference and quantum-Zeno effect in amplification without inversion

J. Mompart; V. Ahufinger; F. Silva; R. Corbalan; R. Vilaseca

Quantum interference and quantum-Zeno effect in amplification without inversion

J. Mompart, V. Ahufinger, F. Silva, R. Corbalan, R. Vilaseca

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

7 Citations (Scopus)

Abstract

We analyze amplification without inversion (AWI) in different homogeneously broadened closed three-level systems in the framework of both density-matrix and quantum-jump formalisms. With the density-matrix formalism we study the nature of quantum interference in these systems; determine analytically the condition for AWI and locate the position of maxima and minima in the probe absorption spectrum. Within the quantum-jump formalism we calculate the relative probabilities of the various physical processes responsible for probe field amplification and absorption, and analyze the role of the quantum-Zeno effect in AWI. The result is that AWI in the h and p schemes is due to one-photon processes while for V and Λ schemes are due to two-photon processes. We also show that AWI in V and h schemes always occurs in the quantum-Zeno regime, while this regime is not necessary for AWI in the Λ and p schemes. Copyright © 1999 by MANK "Hayκa/Interperiodica".

Original language	English
Pages (from-to)	844-857
Journal	Laser Physics
Volume	9
Issue number	4
Publication status	Published - 1 Jul 1999

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@article{6c06bfce7c294dd8b084bf45d4716376,

title = "Quantum interference and quantum-Zeno effect in amplification without inversion",

abstract = "We analyze amplification without inversion (AWI) in different homogeneously broadened closed three-level systems in the framework of both density-matrix and quantum-jump formalisms. With the density-matrix formalism we study the nature of quantum interference in these systems; determine analytically the condition for AWI and locate the position of maxima and minima in the probe absorption spectrum. Within the quantum-jump formalism we calculate the relative probabilities of the various physical processes responsible for probe field amplification and absorption, and analyze the role of the quantum-Zeno effect in AWI. The result is that AWI in the h and p schemes is due to one-photon processes while for V and Λ schemes are due to two-photon processes. We also show that AWI in V and h schemes always occurs in the quantum-Zeno regime, while this regime is not necessary for AWI in the Λ and p schemes. Copyright {\textcopyright} 1999 by MANK {"}Hayκa/Interperiodica{"}.",

author = "J. Mompart and V. Ahufinger and F. Silva and R. Corbalan and R. Vilaseca",

year = "1999",

month = jul,

day = "1",

language = "English",

volume = "9",

pages = "844--857",

journal = "Laser Physics",

issn = "1054-660X",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "4",

}

TY - JOUR

T1 - Quantum interference and quantum-Zeno effect in amplification without inversion

AU - Mompart, J.

AU - Ahufinger, V.

AU - Silva, F.

AU - Corbalan, R.

AU - Vilaseca, R.

PY - 1999/7/1

Y1 - 1999/7/1

N2 - We analyze amplification without inversion (AWI) in different homogeneously broadened closed three-level systems in the framework of both density-matrix and quantum-jump formalisms. With the density-matrix formalism we study the nature of quantum interference in these systems; determine analytically the condition for AWI and locate the position of maxima and minima in the probe absorption spectrum. Within the quantum-jump formalism we calculate the relative probabilities of the various physical processes responsible for probe field amplification and absorption, and analyze the role of the quantum-Zeno effect in AWI. The result is that AWI in the h and p schemes is due to one-photon processes while for V and Λ schemes are due to two-photon processes. We also show that AWI in V and h schemes always occurs in the quantum-Zeno regime, while this regime is not necessary for AWI in the Λ and p schemes. Copyright © 1999 by MANK "Hayκa/Interperiodica".

AB - We analyze amplification without inversion (AWI) in different homogeneously broadened closed three-level systems in the framework of both density-matrix and quantum-jump formalisms. With the density-matrix formalism we study the nature of quantum interference in these systems; determine analytically the condition for AWI and locate the position of maxima and minima in the probe absorption spectrum. Within the quantum-jump formalism we calculate the relative probabilities of the various physical processes responsible for probe field amplification and absorption, and analyze the role of the quantum-Zeno effect in AWI. The result is that AWI in the h and p schemes is due to one-photon processes while for V and Λ schemes are due to two-photon processes. We also show that AWI in V and h schemes always occurs in the quantum-Zeno regime, while this regime is not necessary for AWI in the Λ and p schemes. Copyright © 1999 by MANK "Hayκa/Interperiodica".

M3 - Article

VL - 9

SP - 844

EP - 857

JO - Laser Physics

JF - Laser Physics

SN - 1054-660X

IS - 4

ER -