Effective theory of incompressible quantum Hall liquid crystalsM. M. Fogler
Department of Physics, University of California San Diego 9500 Gilman Drive, La Jolla, CA 02139, USA
(Received 15 December 2003; accepted in final form 17 March 2004)
I propose an effective theory of zero-temperature phases of the quantum Hall stripes: a smectic phase where the stripes are static and a novel quantum nematic phase where the positional order is destroyed by quantum fluctuations. The nematic is viewed as a Bose condensate of dislocations whose interactions are mediated by a U(1) gauge field. Collective mode spectrum and the dynamical structure factor in the two phases are calculated.
73.43.-f - Quantum Hall effects.
73.43.Lp - Collective excitations.
73.43.Nq - Quantum phase transitions.
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