Properties of steady-state field in micromaser pumped by atoms in superposition of their upper and lower states.
Item
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Title
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Properties of steady-state field in micromaser pumped by atoms in superposition of their upper and lower states.
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Identifier
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AAI9969735
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identifier
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9969735
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Creator
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Skvarcek, Jozef.
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Contributor
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Adviser: Mark Hillery
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Date
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2000
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Language
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English
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Publisher
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City University of New York.
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Subject
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Physics, Optics | Physics, General
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Abstract
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We present a semiclassical method for determining the phase distribution and the average photon number of a steady-state micromaser field pumped by a stream of resonant two-level atoms in a superposition of their upper and lower states. Assuming the field to have a photon number distribution with a single sharp peak, we find an equation for the amplitude and the phase of the steady-state field which has two solutions. The stability analysis shows which one of the two is physically realizable. Using the very simple time evolution of particular atomic states, valid in the semiclassical limit, we find an expression for the phase distribution of the field which contains the mean photon number as a parameter. That can be determined from the stable solution. Then we give a simple explanation for period-2 oscillations of the electric field in a lossless, regularly-pumped micromaser with injected atomic coherence in terms of tangent and cotangent states. We also examine the effect of cavity damping on this steady state. Then we consider micromaser fields which after interaction with one atom produce disentangled atom-field states. We find a special solution for which interaction with the atom has the effect of flipping the sign of the electric field. We also consider the general case and derive conditions which the field must satisfy.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
