About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
EPL
Paper
2e or not 2e: Flux quantization in the resonating valence bond state
Abstract
The «resonating valence bond» (RVB) state has been proposed as the basis for an explanation of high-temperature superconductivity. Recently, we have described the charge and spin excitations about this state, and have shown that they are solitons, precisely analogous to those found in polyacetylene. Since the charged solitons are + e bosons, it is natural to ask whether flux quantization will occur in units of hc/2e, as in traditional BCS superconductivity, or will come only in larger units of hc/e. We show here that flux quantization in units of hc/2e will occur unless a condensation of cooperative ring exchanges occurs analogous to that found in the fractional quantized Hall effect. © 1988 IOP Publishing Ltd.