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Quantum manipulation of polaritonic band gaps of two coherently coupled Bose–Einstein condensates confined in an optical lattice

Aranya Bhuti Bhattacherjee

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A scheme is proposed to study and manipulate band gaps of an entangled coherent system composed of superposition of two atomic Bose–Einstein condensates (BECs) (corresponding to different internal sub-levels and different quantum statistics) and light fields moving in two different optical potentials. The band gaps are found to be a consequence of the periodic dielectric behaviour of the ground state BECs.


PACS

03.75.Gg Entanglement and decoherence in Bose-Einstein condensates

73.21.-b Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems

42.50.Dv Quantum state engineering and measurements

71.36.+c Polaritons (including photon-phonon and photon-magnon interactions)

03.75.Be Atom and neutron optics

Subjects

Quantum gases, liquids and solids

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Optics, quantum optics and lasers

Dates

Issue 5 (October 2002)

Received 9 April 2002, in final form 27 May 2002

Published 19 June 2002



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