Authors

J. T. Sheng; M. A. Miri; D. N. Christodoulides;M. Xiao

Comments

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Abbreviated Journal Title

Phys. Rev. A

Keywords

ELECTROMAGNETICALLY INDUCED TRANSPARENCY; NON-HERMITIAN HAMILTONIANS; QUANTUM COHERENCE; INDEX; DIFFRACTION; REFRACTION; Optics; Physics, Atomic, Molecular & Chemical

Abstract

We propose that a coherently prepared four-level atomic medium can provide a versatile platform for realizing parity-time (PT) symmetric optical potentials. Different types of PT -symmetric potentials are proposed by appropriately tuning the exciting optical fields and the pertinent atomic parameters. Such reconfigurable and controllable systems may open up new avenues in observing PT -related phenomena with appreciable gain-loss contrast in coherent atomic media.

Journal Title

Physical Review A

Volume

88

Issue/Number

4

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000325553700001

ISSN

1050-2947

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