Creator | Title | Description | Subject | Date | ||
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1 | Vardeny, Zeev Valentine | Resonant-Raman-scattering studies of disorder in solution-cast polydiacetylene films | The disorder in polydiacetylene films cast from solution is studied by Raman scattering under preresonance and resonance conditions in both Stokes and anti-Stokes configurations. The disorder-induced inhomogeneities in the exciton energy levels and the strongly coupled vibrations cause strong disper... | Polydiacetylene films; Stokes configuration | 1990-08 | |
2 | Wu, Yong-Shi | Suppression of local degrees of freedom of gauge fields by chiral anomalies | A path-integral quantization is presented for the chiral Schwinger model on a Riemann surface. Gauge invariance is maintained by integrating over all gauge potentials without the usual gauge fixing. All local degrees of freedom of the gauge field are suppressed after the integration of the anomalous... | Chiral anomalies; Degrees of freedom | 1990-08 |