π π π π π π π π π

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Di Xiao, ORNL<br />

Acknowledgments<br />

Qian Niu, UT Austin<br />

Junren Shi, ICQS Beijing

Origin of octahedral tilting in the perovskites - Université de Fribourg

« La seconde peau » - Université de Fribourg

Nur wer flexibel und anpassungs- fähig bleibt, überlebt!

Notes brésiliennes du Doyen, Prof. J.-J. Friboulet - Université de ...

Di Xiao, ORNL Acknowledgments Qian Niu, UT Austin Junren Shi, ICQS Beijing

Outline • Quick Review Berry phase in quantum systems adiabatic theorem, spin-1/2 in B, analogies • Semiclassical dynamics Berry connection, curvature, LDOS • 1D dimer model: fractionally charged kinks Rice-Mele, Su-Schrieffer-Heeger • Fractionally charged vortices in 2D dimer model

Page 1 and 2: Berry-phase Approach to Electric Po
Page 8 and 9: Berry phase Berry curvature Chern n
Page 14: Kink soliton in SSH A t1 domain wal
Page 23: Conclusions • New way to calculat

π π π π π π π π π

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