Consequences of a possible adiabatic transition between n51/3 and n51 quantum Hall states in a narrow wire
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چکیده
We consider the possibility of creating an adiabatic transition through a narrow neck, or point contact, between two different quantized Hall states that have the same number of edge modes, such as n51 and n 5 1 3. We apply both the composite-fermion and Luttinger-liquid formalism to analyze the transition. We suggest that using such adiabatic junctions one could build a dc step-up transformer, where the output voltage is higher than the input. Difficulties standing in the way of an experimental implementation of the adiabatic junction are addressed. @S0163-1829~98!02104-3#
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تاریخ انتشار 1998