Photon Echo from Lensing of Fractional Excitations in Tomonaga-Luttinger Spin Liquid
We study theoretically the nonlinear optical response of Tomonaga-Luttinger spin liquid in the context of terahertz (THz) two-dimensional coherent spectroscopy (2DCS). Using the gapless phase of the XXZ-type spin chain as an example, we show that its third-order nonlinear magnetic susceptibilities χ...
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| Main Authors: | , , |
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| Format: | article |
| Language: | EN |
| Published: |
American Physical Society
2021
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| Subjects: | |
| Online Access: | https://doaj.org/article/1425999224454fd1a107999ec9347f39 |
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