Structured Light and Induced Vorticity in Superconductors
ORAL
Abstract
Optical control of quantum states of matter has been at the forefront of novel research on driven phases. We demonstrate the effects of imprinted vorticity on superconducting coherent states using structured light. Within the framework of the generalized time-dependent Ginzburg-Landau equation, we demonstrate the induction of coherent vortex pairs moving in phase with a Laguerre-Gaussian (LG) beam, which is characterized by a twisted phase front. In this talk, we will investigate the optically-induced dynamics of superconducting coherent states using both normal light sources and the LG beam. Our work illustrates the rich hydrodynamics of superconducting states and suggests new optical applications for imprinting quantum states on superconducting materials.
*We acknowledge support from the grant of University of Connecticut, DOE BES DE-SC0025580, and the European Research Council under the European Union Seventh Framework ERC-2018-SYG 810451 HERO, Knut and Alice Wallenberg Foundation KAW 2019.0068.
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Publication: [1] T.-T. Yeh, H. Yerzhakov, L. B. V. Horn, S. Raghu, A. Balatsky, "Structured light and induced vorticity in superconductors I: Linearly polarized light," arXiv preprint, arXiv:2407.15834 (2024).
[2] T.-T. Yeh, H. Yerzhakov, L. B. V. Horn, S. Raghu, A. Balatsky, "Structured light and induced vorticity in superconductors II: Laguerre-Gaussian beam," (unpublished).
Presenters
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Tien-Tien Yeh
- NORDITA - Nordic Institute for Theoretical Physics