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Gains without inversion in quantum systems with broken parities

Source: Phys. Rev. A 82, 013808 (2010); doi:10.1103/PhysRevA.82.013808

Published 12 July 2010

PACS
  • 42.50.Gy
    Effects of atomic coherence on propagation, absorption, and amplification of light
  • 85.25.-j
    Superconducting devices
  • 42.50.Hz
    Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift
  • 32.80.Qk
    Coherent control of atomic interactions with photons
  • YEAR: 2010
PUBLICATION DATA
Publisher:
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W. Z. Jia and L. F. Wei
Quantum Optoelectronics Laboratory, Southwest Jiaotong University, Chengdu 610031, China
For a quantum system with broken parity symmetry, selection rules cannot hold and cyclic transition structures are generated. With these loop transitions we discuss how to achieve inversionless gain of the probe field by properly setting the control and auxiliary fields. Possible implementations of our generic proposal with specific physical objects with broken parities (e.g., superconducting circuits and chiral molecules) are also discussed. ©2010 The American Physical Society
History: Received 30 March 2010; published 12 July 2010
Permalink: http://link.aps.org/abstract/PRA/v82/e013808
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