Bloch oscillations of polaritons of an atomic ensemble in magnetic fields

Journal Article · Tue Jun 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.063427· OSTI ID:21437936

Zhang, H R; Sun, C P ^[1]

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1. Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080 (China)

We study a washboard potential in a light-driven ensemble of three-level atoms induced by the externally applied magnetic fields under electromagnetically induced transparency (EIT). We find that a dark-state polariton, which is formed by an atomic ensemble dressed by the photon can display a typical quantum interference effect (i.e., the quasiparticle Bloch oscillation). The dark-state polariton is subjected to a washboard configuration potential with a spatially uniform force and a periodic potential provided by the linearly and periodically external magnetic fields, respectively. Due to the slower group velocity of the photons in the EIT medium, the period of Bloch oscillation can achieve a millisecond order of magnitude. Also, in our protocol, the Bloch oscillation of the dark-state polariton is feasibly modulated through the applied control and magnetic fields.

• OSTI ID: 21437936
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOMS
BOSONS
COLLISIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
INTERFERENCE
MAGNETIC FIELDS
MASSLESS PARTICLES
OPACITY
OPTICAL PROPERTIES
OSCILLATIONS
PERIODICITY
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
PHOTONS
PHYSICAL PROPERTIES
POLARONS
POTENTIALS
QUASI PARTICLES
RADIATIONS
VARIATIONS
VISIBLE RADIATION